Bitcoin: 2015 vs 2019 - The Cryptonomist

[OC] Bitcoin vs Ethereum vs Litecoin Price Evolution [2015-2020] How much money would you have today, if you had invested $1000 in BTC in 2015?

[OC] Bitcoin vs Ethereum vs Litecoin Price Evolution [2015-2020] How much money would you have today, if you had invested $1000 in BTC in 2015? submitted by Datalented to btc [link] [comments]

[OC] Bitcoin vs Ethereum vs Litecoin Price Evolution [2015-2020] How much money would you have today, if you had invested $1000 in BTC in 2015?

[OC] Bitcoin vs Ethereum vs Litecoin Price Evolution [2015-2020] How much money would you have today, if you had invested $1000 in BTC in 2015? submitted by Datalented to ethtrader [link] [comments]

BBC Newsnight. Bitcoin & Litecoin,Max Keiser VS Jeremy Cook (10/06/2015)

BBC Newsnight. Bitcoin & Litecoin,Max Keiser VS Jeremy Cook (10/06/2015) submitted by jongbo to CryptoCurrency [link] [comments]

Two years in, the biggest challenge facing Bitcoin Cash

Two years ago today, after years of Bitcoin failing to raise an artificial limit on capacity, a small group of Bitcoiners decided to move forward with a proposed protocol upgrade with or without community consensus, forking Bitcoin and creating Bitcoin Cash.
Today I predict that the biggest challenge facing Bitcoin Cash two years later is not a technical one. Rather, it is a matter of whether this community can make the transition from defining itself in relation to what it’s not (BTC, Core, Blockstream, the Lightning Network) to defining itself on the basis of what it is and aspires to be. Not only is this the biggest challenge that Bitcoin Cash faces, I think it is one of existential significance for the entire project.
Nearly every day for the past two years, I've checked in on this subreddit, read your contributions, up- and down-voted, commented and sometimes even posted. One thing that has stood out more clearly as time has moved on, and which has increasingly become a cause of distress in recent months is our continued unhealthy obsession with BTC.
I am not the only person that has noticed this. Earlier this month, one of our most prolific contributors u/Kain-niak said: "Hey can we all get over our victim complex and move towards the future. BCH is working great and has been for almost 2 years now, ZERO interruptions. 99,99% of every tx made was in the next or second block. We are not victims, we are leaders." Something else that comes to mind is u/Jonald_fyookball's recent suggestion that, whilst true, insisting that Bitcoin Cash represents "Bitcoin: a peer to peer electronic cash system" and BTC doesn't, may not be our most effective marketing strategy. Let is suffice to say that these comments from well-respected contributors were received as rather controversial.
And yet, this is our subreddit. Here are just some of the notable and popular posts from the last week:
I know that some of you will say that we need to speak the truth and inform people about what happened to Bitcoin, and I agree. But there are several of problems with this response. First of all, it seems obvious to me that these daily posts aren’t for newcomers, they’re for us. Even though Bitcoin Cash is going strongly and there’s exciting news almost every day, somehow we still feel the need to constantly post all of this negative content. Why do we need to construct this ever larger and more malicious picture of Core and Blockstream to feel good about Bitcoin Cash? This suggests to me that something's not quite right about our community spirit.
Second, it just has really terrible optics; especially if we're hoping to draw new people into Bitcoin Cash. Posting day after day about everything that’s wrong with BTC doesn’t help us attract new users to crypto or to Bitcoin Cash. For one, normies don't care about this (ancient) history. They just want a cool cryptocurrency that is easy to use and which works (that's BCH!!!). Moreover, to outsiders this kind of meme war against BTC appears obsessive, deranged and resentful, playing right into the maximalist propaganda that's been spread about Bitcoin Cash. In short, people coming here for the first time and reading this material don’t think: “Oh, I wasn’t aware of all of these great criticisms of BTC. I guess Bitcoin Cash is awesome.” No, they think: “Why are those Bitcoin Cash guys so angry and obsessed? That’s not healthy!!”
And the truth is, it's not healthy. I worry that, given the choice, some of us here in btc would rather that BTC be wrong than for BCH succeed. I worry that the Bitcoin Cash community would rather virtue signal about upholding “freedom of speech”, all the while battling the trolls to the death, than elect to congregate in a forum where we can actually have a decent discussion about the things we care about. And I worry that we'd rather re-live the same pointless debates eternally—whether the trolls go by the name of Hernzz or Charlie Lee or Samson Mow or someone else—than to actually do productive work improving and spreading adoption of Bitcoin Cash.
And finally, it seems that if anyone raises these issues, then their commitment to Bitcoin Cash is immediately called into question. Having seen other users figuratively smear their faecal matter over the walls and windows and having suggested politely that they might want to reconsider their actions—that such behaviour is perhaps unhygienic and might make us all look like derelicts to passers by—I've been accused of being a "core psyop". "Stahp repressing me!" is the line.
Today is the anniversary of our independence day. The Bitcoin Cash fork was 2 years ago. The Theymos ban hammer was almost 4 years ago. But somehow we're still stuck in this narcissistic time-loop where we'd apparently prefer to dwell on the injustice of these events than get on with building the bitcoin that we supposedly care so much about. Blockstream no longer stands in our way. So what's the hold up?
I'm under no illusions that this post will be popular, but I'm convinced that things must change if this situation is to improve. I hope that enough of you give some of this a few minute's thought. Our current approach has not worked; it's time to try something different.
In summary, I propose that:
  1. We make a conscious effort not to dwell on negatives about Bitcoin, Core, Blockstream or LN anymore than is absolutely necessary to maintain and defend our integrity. Let looking away be our only negation.
  2. We focus on talking about promising BCH news, discuss ideas about spreading adoption, and new use-cases etc.
  3. We make a conscious effort not to engage with trolls. They sap precious energy that is already in scarce supply.
  4. If trolls make involved, focused discussion impossible, then the community should consider migrating such discussion to a more suitable forum, such as bitcoincash. Intellectual hygiene is precious and we cannot allow our intelligence to be degraded by trolls.
I'm looking forward to hearing your thoughts. Take care, all.
submitted by CatatonicAdenosine to btc [link] [comments]

Epic Cash Vitex Exchange AMA

What is EPIC CASH?
Epic Cash is the final point in the journey toward true P2P internet cash, the cornerstone of a private financial system. The Epic currency aims to become the world’s most effective privacy-protecting form of digital money. In order to fulfill that goal, it satisfies the three principal functions of money:
1. Store of Value — can be saved, retrieved, and exchanged at a later time, and of predictable value when retrieved;
2. Medium of Exchange — anything accepted as representing a standard of value and exchangeable for goods or services;
3. Unit of Account — the unit by which the value of a thing is accounted for and compared.
Website: http://epic.tech Whitepapers: http://epic.tech/whitepaper Epic Cash Community: https://t.me/EpicCash Miner Chat: https://t.me/EpicMiners Gitlab: gitlab.com/epiccash Twitter: twitter.com/EpicCashTech Social Media: http://epic.tech/social-media Exchanges: https://epic.tech/service-list
Oleg✌🏻
Hello community! Our AMA with EPIC begins🚀 We are very happy to have you here, on our joint AMA👌 So, lets start! The very first question for you. Can you introduce yourself?
Max Freeman | Epic Cash | Mimblewimble I’m Max Freeman, which stands for “Maximum Freedom for Mankind” — we believe that the existing fiat money system enslaves people by unfairly confiscating their wealth through inflation. By using an honest money system such as Epic, we can improve the quality of life for billions of people worldwide.
Yoga Dude Hello, I am Yoga Dude 🙂 I handle Marketing and PR, in crypto since 2011 started as Bitcoin miner, and in 2014 in Monero, and in 2015 in Ethereum, oh and briefly in DOGE for fun and unexpected profit. Heard about Epic Cash while learning about the Mimblewimble algo and joined the team last year.
JLong I am John, Doing the general engineering and managerial work
Max Freeman | Epic Cash | Mimblewimble I have been involved in early stage cryptos for the past 3 years, after building a global trading business for the past 20 years.
Oleg✌🏻 nice to meet you🙂
Max Freeman | Epic Cash | Mimblewimble Epic is a decentralized community project like Bitcoin or Monero, there is no central authority or corporation involved. We had no ICO and no premine, we had a fair launch at 0 supply last September.
Yoga Dude Great to meet everyone :)
Oleg✌🏻 Here we go the 1st question for you ~ 1. What is Epic Cash about?
Yoga Dude Epic Cash is designed to fulfill Satoshi’s original vision of P2P electronic cash, adjusting for what we learned from Bitcoin, a medium of exchange that is fast, free, open to all, while being private and fungible. We launched in September 2019 as a Proof of Work mineable crypto, without an ICO or a premine.
Oleg✌🏻 Look like a real Bitcoin🙂
Yoga Dude with privacy and fungibility 😄
Oleg✌🏻 Sounds cool! move on to the next question… 2. What makes Epic Cash better than Monero or other privacy coins?
Max Freeman | Epic Cash | Mimblewimble First off, we have a lot of respect for Monero and other privacy coins, we learned a lot from what they did right and what they did wrong, Our blockchain is much lighter than Monero or Bitcoin, our transaction engine is faster than Monero or ZCash. We use a three mining algo approach to allow more users the ability to obtain Epic Cash. We are a new, highly undervalued, coin and we look great not only for future use but for today's investment. Our blockchain is 90+% smaller than Monero or Bitcoin. Coins such as Zcash have optional privacy. Epic makes all transactions private, and it is impossible to trace movements of coins by watching wallet addresses.
Oleg✌🏻 Young and hot😋 security and privacy level is very important now but… 3. Why copy the same supply economics as Bitcoin?
Yoga Dude It is hard to compete with the success of Bitcoin today, part of the elegance and the appeal of Bitcoin is the responsible emission rate, terminating at 21million highly sub dividable coins. Like the Bitcoin supply curve, Epic Cash encourages early adopters, and with subsequent halvenings maintains a gradually diminishing flow of additional currency while preserving the overall value.
Max Freeman | Epic Cash | Mimblewimble In 2028, the supply of Epic matches that of Bitcoin and they stay in sync until the final coin is mined in 2140. We have 4 halvenings between now and then, which is demonstrated in Bitcoin to drive the value over market cycles. Epic is a chance for people who were late to Bitcoin to ride the wave and not miss their opportunity this time.
Oleg✌🏻 Interesting! 4. Why Choose Epic Cash over Grin and Beam?
Max Freeman | Epic Cash | Mimblewimble First of all, we have tremendous respect for all Mimblewimble currencies and their talented teams, they all taught us a lot and we are thankful for that. Without sounding too contentious, the choice seems obvious. We offer the same core tech, but with a much more responsible emission curve — Grin is an endless fountain of emission and inflation (60 per second forever), and Beam is even more frontloaded outpacing even Grin’s aggressive emission schedule for the next several years… We respect Grin and Beam, we learned from them, and we believe we are the next evolutionary step. Additionally, as we mentioned earlier, we offer more ways to mine Epic Cash, both with GPU and CPU and ASICs, this gives us more potential users and miners, vs Grin and Beam that are only mineable with GPUs.
Yoga Dude Yes, all that ☝️😄
Oleg✌🏻 I hope the miners read it all carefully 👌 Next question 5. Why have a development fund tax and what will it be used for?
Yoga Dude Dev fund tax today is at a reasonable 7.77% dropping by 1.11% every year until it hits zero. As Epic Cash grows in value these funds will become increasingly more relevant in additional technical, marketing, and fintech partnerships developments.
Oleg✌🏻 Very smart! 6. What is the advantage of 3 mining algorithms?
Max Freeman | Epic Cash | Mimblewimble By having multiple mining algorithms we are able to attract CPU, GPU, and ASIC miners simultaneously. Currently all other Mimblewimble currencies are mineable with GPU only ignoring a large segment of CPU miners. Monero made a splash migrating to the RandomX CPU mining algo. Epic Cash from the beginning embraces all mining communities. Many miners are successfully using older hardware such as Xeon processors to help secure the network. We use RandomX for CPU, ProgPow for GPU, and Cuckoo for ASIC.
Longer term, our flexible architecture means we can have many algorithms, not just 3. Our roadmap includes an allocation for SHA3 Keccak, which will help further decentralize the network and keep it unstoppable.
Yoga Dude We love miners 🙂 and Epic Cash can be mined with laptops and gaming rigs 🙂
Oleg✌🏻 A wide selection of mining methods is a great way to create a stable, decentralized and large network👌 Let’s talk about persons… 7. Who are the people developing Epic Cash?
Yoga Dude We are blessed with a very talented team of skilled developers with diverse backgrounds, many of them are volunteers who believe in what Epic Cash stands for and contribute with product and usability innovation. Our teams main focus is to make Epic Cash the best, most secure, most user friendly and usable product on the market, without making it unnecessarily techie, with as much mainstream user appeal as possible. This is a serious challenge but we are up for it 😄
Max Freeman | Epic Cash | Mimblewimble It is also important to note that we are a truly open ecosystem that anyone can participate in. Our community has developed wallets, mining pools, educational content, and much else besides. We are not limited by the funding generated during an ICO or VC investment, our users are an essential element of our team.
Oleg✌🏻 Sounds very attractive. 8. What do you think is currently lack in today’s crypto?
Max Freeman | Epic Cash | Mimblewimble We believe there is not enough privacy, anonymity and fungibility, although there is a growing awareness in the community as to why these are necessary. People are waking up to the fact that privacy is a right for everyone but today it is being exploited and violated by corporations, governments and unscrupulous individuals. Privacy does not mean that you have something to hide. We have doors on our houses, curtains on our windows, we wear clothes, and we have security on our bank accounts and businesses, not because we are criminals.
Fungibility (the property of not being able to distinguish one unit of currency from another) also has become a hot issue as people have started to get in trouble because of someone else’s misdeeds. Tainted money (coins that are blacklisted or restricted) is a problem for Bitcoin and Ethereum, the top two cryptos today. Mimblewimble eliminates the risk of tainted coins making them indistinguishable from each other. With traceable coins, you always have to worry if the coins you are getting were involved in a hack, or perhaps the darknet.
Oleg✌🏻 It’s good to see strong and safe coin in our time Let’s talk about your future… 9. What does the Epic Cash roadmap look like going forward?
Yoga Dude First and foremost, we are focused on security and usability.
We are working on a new, improved GUI wallet to incorporate the community feedback on ways to improve it.
We are in the process of completing final testing phases for the next iteration of Epic Cash which will make it more secure and stable. Once that is done, we will be rolling out Android and iOS support to make Epic Cash usable on leading smartphones and smartwatches. Beyond that without going into too much detail we are focused on continuous evolution of privacy, ease of mining, and overall speed and usability.
And of course we are constantly looking to add more exchanges both with and without KYC.
Oleg✌🏻 Are you working on Android and IOS wallet ? What will your application be?
Max Freeman | Epic Cash | Mimblewimble Yes, we will release a mobile wallet this year. It will bring us one step closer to people being able to actually use cryptocurrency as money in daily life.
Yoga Dude The idea is to be able to access Epic Cash from any platform and device
Max Freeman | Epic Cash | Mimblewimble Epic is very lightweight, which means that low-end devices such as smartwatches can participate.
Oleg✌🏻 Ok, got it. Thanks for clarification! 10. What else can you tell us about Epic Cash?
Max Freeman | Epic Cash | Mimblewimble Well one thing I really want to mention is our great Epic Cash community. We’ve been building a decentralized community organically, without the talk of price pumps, pressure to HODL and other BS crypto-gimmicks. Our community is truly global and consists of developers, volunteers, miners, and other Epic enthusiasts spreading the word about Epic Cash, helping us reach millions of people around the world to improve their quality of life through social media and directly. Everyone is an evangelist, everyone is an influencer, everyone has the power to make the world a better place to live in. As we continue to grow — the future looks Epic 😊
Yoga Dude Definitely the community! We got a talented crowd of very cool and motivated people from all over the world!
Oleg✌🏻 Thank you guys, for such informative answers 🙂 Now we proceed to Section 3, where a Community can ask their questions to the EPIC team Now I’ll open chat for the quite some time … Oleg✌🏻 Thank you all, dear community! EPIC team, please choose the 10 best questions you want to answer.
AngeI Everyone likes Privacy & Epic Cash provides their Best Privacy to users But, Which Technologies are being used by Epic Cash to make Blockchain very Private and Completely untrackable ?
Max Freeman | Epic Cash | Mimblewimble From the wallet to the node, Epic uses Dandelion++ to bounce transactions around the world before they go into the mempool for mining. Within the blockchain itself, Cut-Through merges all transactions in a block together, with CoinJoin automatically mixing all coins.
Beyond that, there are no addresses, so it’s impossible to watch someone’s wallet.
Arnold Even litecoin is implementing mimblewimble, Don’t you think it’s a significant threat for Epic if they implement it, then why would anyone use a less popular and a new cryptocurrency.
Max Freeman | Epic Cash | Mimblewimble LTC is implementing mw as an “extension block”, meaning that it is optional and not all transactions will use it. This is very different than the core protocol leveraging mw to make all transactions private and all coins fungible.
Aluta Why Epic cash so much focus on fungibility? Does fungibility matters that much?
Max Freeman | Epic Cash | Mimblewimble Fungibility is going to be one of the key issues within the cryptocurrency space in the coming years. Today, if you accept traceable coins from a seller, you are liable if they have ever been used in any illegal activity. This has led to a two tier market where freshly minted coins sell for more than circulated coins. When coins are fungible, like Epic, you don’t have to worry that you will run into a problem when an exchange or merchant blocks your transaction.
Joxes It is a pleasure.
When I first researched EpicCash, google showed me a youtube video that talked about how to mine with EpicCash. It made me ask: is this mining activity profitable so far?
We are in the early stages of development I guess, what adoption strategies are you taking to have sustained growth? is it feasible to reach N ° 500 rank in coinmarketcap in the medium term?
Yoga Dude When I got into crypto, it was by mining Bitcoin back in 2011 when you could still solve blocks on a single computer, but Bitcoin at the time was anything but profitable 😄 Today Epic Cash is still new, still young, and still undervalued. I believe it is mining-worthy because of its potential, not because of today’s price. By allowing Epic Cash to be mined with GPU and CPU on gaming rigs, servers, and even laptops we offer maximum public participation in our project. More people involved in the project, the more evangelists there are. We empower people to mine Epic Cash and to promote it.
S.P.A.D.E What new features of Epic Cash provide that Grin or Beam does not offer. Why do we need Epic Cash?
Max Freeman | Epic Cash | Mimblewimble They are great coins, but there are some ways in which Epic improves. Epic has better tokenomics than Grin and a more sustainable model than Beam, that has a company behind it that needs to repay investors via its high dev tax. this article explains in more detail https://medium.com/@frodofreeman/overview-of-mimblewimble-cryptocurrencies-7c70be146f50
Sahil What’s the Minimum Hardware / setup Required for Mining of EPIC Cash coins? Is Mining Profitable and Can we Mine EPIC Cash coins at Home?
Max Freeman | Epic Cash | Mimblewimble It is possible to mine on an ordinary laptop or desktop from the last 5 years, sometimes older. Epic is open to everyone, and our friendly community is standing by to help you get started at t.me/epicminers
Erven James Sato “TOKEN BURN” is BENEFECIAL for any projects, in able to CONTROL THE NUMBER OF TOKEN CIRCULATION and TO PROVIDE GREATER INCENTIVES TO INVESTORS.
Does your GREAT PROJECT have plan about TOKEN BURN?
Xenolink For deflating projects It is beneficial to drive the demand / scarcity / and price up in a faster pace. Epic Cash is here for the organic long run not the short run. However when it comes to long term economics elastic supplies whether inflating or deflating will not be a solid long term economic model. This has been heavily discussed already with Bitcoins inelastic Fixed 21 million supply in the past. Having a fixed model demonstrates good long term economics without worrying about balancing a deflating/inflating model. Bitcoin is a perfect example of a 21 million inelastic fixed supply model that has been proving itself till today. Which is why we are also using the same fixed 21 million supply model. Epic Cash plans to have a solid organic long term future to bring free private fungible money and make this world a better place.
Red Z🔥🤙 No one predicted the COVID-19 pandemic while developing their business model. But the crisis and recession of the global economy is our present with you and it affects all sectors, including blockchain. Will you make or have already made changes to the project roadmap, tokenomics? Do you have a plan in case the situation does not improve in the coming months and will affect the crypto industry even more?
Yoga Dude One thing we have seen as the result of the COVID-19 is more governments are talking about moving to digital cash — digital dollar in USA, digital Lira in Turkey, etc… If in the past the idea of digital money was not graspable by some people, today its the governments that are educating the people for us about the value of digital currency… What is ironic, the governments, by printing money to solve the economic consequences of COVID-19 also educating the consumer about the true “value” of fiat… What we offer is a touch free, borderless, private, anonymous, fungible currency that can not be printed beyond the initial defined algo. We are more responsible than the printing presses of the governments 🤔
kunlefighter How does the Dandelion++ Protocol, Confidential Transactions (CT) and CoinJoin assist in protecting the privacy of individuals and their transactions on Epic Cash Blockchain?
Max Freeman | Epic Cash | Mimblewimble Dandelion++ bounces transactions around before committing them to the blockchain, making it impossible to determine where they originated from. Confidential Transactions means that all tx are private, you can’t tell anything about where the coins have been or who they belonged to. CoinJoin in essence melts down and re-mints each coin every time it is used, making it impossible to track their ownership or usage history. Epic provides comprehensive privacy to everyone, without the compromises that other pre-mimblewimble coins have.
Dr Mönica Hello sir @maxfreeman4 @Johnsstec @Yogadude
Thanks for the ama I notice that Epic Cash has 2 type of new algorithm, progPoW version 0.15.0 and randomX version 1.0.3 NOW , CAN you tell me why you choose these 2 algorithm???
Yoga Dude We went with RandomX because it is a solid and very popular CPU centric algo used by several coins — most recently Monero. Most miners today heavily favor ASICs or GPUs, leaving a lot of solid high end users in the dust unable to mine emerging cryptos. As far as ProgPow, again its an established algo for GPU miners, and thanks to many cryptos starting with Bitcoin/Monero/Ethe etc there is no shortage of GPU rigs out there :) plus again the casual user with a video gaming caliber card can get in on the action.
Oleg✌🏻 Perfect! It was a great AMA, but it is coming to an end, thanks to everyone who was with us. Thanks EPIC team for taking the time👏. I hope our projects will be able to collaborate even more closely in the future and achieve new successes. Cheers!🎉
submitted by EpicCashFrodo to epiccash [link] [comments]

Bitcoin (BTC)A Peer-to-Peer Electronic Cash System.

Bitcoin (BTC)A Peer-to-Peer Electronic Cash System.
  • Bitcoin (BTC) is a peer-to-peer cryptocurrency that aims to function as a means of exchange that is independent of any central authority. BTC can be transferred electronically in a secure, verifiable, and immutable way.
  • Launched in 2009, BTC is the first virtual currency to solve the double-spending issue by timestamping transactions before broadcasting them to all of the nodes in the Bitcoin network. The Bitcoin Protocol offered a solution to the Byzantine Generals’ Problem with a blockchain network structure, a notion first created by Stuart Haber and W. Scott Stornetta in 1991.
  • Bitcoin’s whitepaper was published pseudonymously in 2008 by an individual, or a group, with the pseudonym “Satoshi Nakamoto”, whose underlying identity has still not been verified.
  • The Bitcoin protocol uses an SHA-256d-based Proof-of-Work (PoW) algorithm to reach network consensus. Its network has a target block time of 10 minutes and a maximum supply of 21 million tokens, with a decaying token emission rate. To prevent fluctuation of the block time, the network’s block difficulty is re-adjusted through an algorithm based on the past 2016 block times.
  • With a block size limit capped at 1 megabyte, the Bitcoin Protocol has supported both the Lightning Network, a second-layer infrastructure for payment channels, and Segregated Witness, a soft-fork to increase the number of transactions on a block, as solutions to network scalability.

https://preview.redd.it/s2gmpmeze3151.png?width=256&format=png&auto=webp&s=9759910dd3c4a15b83f55b827d1899fb2fdd3de1

1. What is Bitcoin (BTC)?

  • Bitcoin is a peer-to-peer cryptocurrency that aims to function as a means of exchange and is independent of any central authority. Bitcoins are transferred electronically in a secure, verifiable, and immutable way.
  • Network validators, whom are often referred to as miners, participate in the SHA-256d-based Proof-of-Work consensus mechanism to determine the next global state of the blockchain.
  • The Bitcoin protocol has a target block time of 10 minutes, and a maximum supply of 21 million tokens. The only way new bitcoins can be produced is when a block producer generates a new valid block.
  • The protocol has a token emission rate that halves every 210,000 blocks, or approximately every 4 years.
  • Unlike public blockchain infrastructures supporting the development of decentralized applications (Ethereum), the Bitcoin protocol is primarily used only for payments, and has only very limited support for smart contract-like functionalities (Bitcoin “Script” is mostly used to create certain conditions before bitcoins are used to be spent).

2. Bitcoin’s core features

For a more beginner’s introduction to Bitcoin, please visit Binance Academy’s guide to Bitcoin.

Unspent Transaction Output (UTXO) model

A UTXO transaction works like cash payment between two parties: Alice gives money to Bob and receives change (i.e., unspent amount). In comparison, blockchains like Ethereum rely on the account model.
https://preview.redd.it/t1j6anf8f3151.png?width=1601&format=png&auto=webp&s=33bd141d8f2136a6f32739c8cdc7aae2e04cbc47

Nakamoto consensus

In the Bitcoin network, anyone can join the network and become a bookkeeping service provider i.e., a validator. All validators are allowed in the race to become the block producer for the next block, yet only the first to complete a computationally heavy task will win. This feature is called Proof of Work (PoW).
The probability of any single validator to finish the task first is equal to the percentage of the total network computation power, or hash power, the validator has. For instance, a validator with 5% of the total network computation power will have a 5% chance of completing the task first, and therefore becoming the next block producer.
Since anyone can join the race, competition is prone to increase. In the early days, Bitcoin mining was mostly done by personal computer CPUs.
As of today, Bitcoin validators, or miners, have opted for dedicated and more powerful devices such as machines based on Application-Specific Integrated Circuit (“ASIC”).
Proof of Work secures the network as block producers must have spent resources external to the network (i.e., money to pay electricity), and can provide proof to other participants that they did so.
With various miners competing for block rewards, it becomes difficult for one single malicious party to gain network majority (defined as more than 51% of the network’s hash power in the Nakamoto consensus mechanism). The ability to rearrange transactions via 51% attacks indicates another feature of the Nakamoto consensus: the finality of transactions is only probabilistic.
Once a block is produced, it is then propagated by the block producer to all other validators to check on the validity of all transactions in that block. The block producer will receive rewards in the network’s native currency (i.e., bitcoin) as all validators approve the block and update their ledgers.

The blockchain

Block production

The Bitcoin protocol utilizes the Merkle tree data structure in order to organize hashes of numerous individual transactions into each block. This concept is named after Ralph Merkle, who patented it in 1979.
With the use of a Merkle tree, though each block might contain thousands of transactions, it will have the ability to combine all of their hashes and condense them into one, allowing efficient and secure verification of this group of transactions. This single hash called is a Merkle root, which is stored in the Block Header of a block. The Block Header also stores other meta information of a block, such as a hash of the previous Block Header, which enables blocks to be associated in a chain-like structure (hence the name “blockchain”).
An illustration of block production in the Bitcoin Protocol is demonstrated below.

https://preview.redd.it/m6texxicf3151.png?width=1591&format=png&auto=webp&s=f4253304912ed8370948b9c524e08fef28f1c78d

Block time and mining difficulty

Block time is the period required to create the next block in a network. As mentioned above, the node who solves the computationally intensive task will be allowed to produce the next block. Therefore, block time is directly correlated to the amount of time it takes for a node to find a solution to the task. The Bitcoin protocol sets a target block time of 10 minutes, and attempts to achieve this by introducing a variable named mining difficulty.
Mining difficulty refers to how difficult it is for the node to solve the computationally intensive task. If the network sets a high difficulty for the task, while miners have low computational power, which is often referred to as “hashrate”, it would statistically take longer for the nodes to get an answer for the task. If the difficulty is low, but miners have rather strong computational power, statistically, some nodes will be able to solve the task quickly.
Therefore, the 10 minute target block time is achieved by constantly and automatically adjusting the mining difficulty according to how much computational power there is amongst the nodes. The average block time of the network is evaluated after a certain number of blocks, and if it is greater than the expected block time, the difficulty level will decrease; if it is less than the expected block time, the difficulty level will increase.

What are orphan blocks?

In a PoW blockchain network, if the block time is too low, it would increase the likelihood of nodes producingorphan blocks, for which they would receive no reward. Orphan blocks are produced by nodes who solved the task but did not broadcast their results to the whole network the quickest due to network latency.
It takes time for a message to travel through a network, and it is entirely possible for 2 nodes to complete the task and start to broadcast their results to the network at roughly the same time, while one’s messages are received by all other nodes earlier as the node has low latency.
Imagine there is a network latency of 1 minute and a target block time of 2 minutes. A node could solve the task in around 1 minute but his message would take 1 minute to reach the rest of the nodes that are still working on the solution. While his message travels through the network, all the work done by all other nodes during that 1 minute, even if these nodes also complete the task, would go to waste. In this case, 50% of the computational power contributed to the network is wasted.
The percentage of wasted computational power would proportionally decrease if the mining difficulty were higher, as it would statistically take longer for miners to complete the task. In other words, if the mining difficulty, and therefore targeted block time is low, miners with powerful and often centralized mining facilities would get a higher chance of becoming the block producer, while the participation of weaker miners would become in vain. This introduces possible centralization and weakens the overall security of the network.
However, given a limited amount of transactions that can be stored in a block, making the block time too longwould decrease the number of transactions the network can process per second, negatively affecting network scalability.

3. Bitcoin’s additional features

Segregated Witness (SegWit)

Segregated Witness, often abbreviated as SegWit, is a protocol upgrade proposal that went live in August 2017.
SegWit separates witness signatures from transaction-related data. Witness signatures in legacy Bitcoin blocks often take more than 50% of the block size. By removing witness signatures from the transaction block, this protocol upgrade effectively increases the number of transactions that can be stored in a single block, enabling the network to handle more transactions per second. As a result, SegWit increases the scalability of Nakamoto consensus-based blockchain networks like Bitcoin and Litecoin.
SegWit also makes transactions cheaper. Since transaction fees are derived from how much data is being processed by the block producer, the more transactions that can be stored in a 1MB block, the cheaper individual transactions become.
https://preview.redd.it/depya70mf3151.png?width=1601&format=png&auto=webp&s=a6499aa2131fbf347f8ffd812930b2f7d66be48e
The legacy Bitcoin block has a block size limit of 1 megabyte, and any change on the block size would require a network hard-fork. On August 1st 2017, the first hard-fork occurred, leading to the creation of Bitcoin Cash (“BCH”), which introduced an 8 megabyte block size limit.
Conversely, Segregated Witness was a soft-fork: it never changed the transaction block size limit of the network. Instead, it added an extended block with an upper limit of 3 megabytes, which contains solely witness signatures, to the 1 megabyte block that contains only transaction data. This new block type can be processed even by nodes that have not completed the SegWit protocol upgrade.
Furthermore, the separation of witness signatures from transaction data solves the malleability issue with the original Bitcoin protocol. Without Segregated Witness, these signatures could be altered before the block is validated by miners. Indeed, alterations can be done in such a way that if the system does a mathematical check, the signature would still be valid. However, since the values in the signature are changed, the two signatures would create vastly different hash values.
For instance, if a witness signature states “6,” it has a mathematical value of 6, and would create a hash value of 12345. However, if the witness signature were changed to “06”, it would maintain a mathematical value of 6 while creating a (faulty) hash value of 67890.
Since the mathematical values are the same, the altered signature remains a valid signature. This would create a bookkeeping issue, as transactions in Nakamoto consensus-based blockchain networks are documented with these hash values, or transaction IDs. Effectively, one can alter a transaction ID to a new one, and the new ID can still be valid.
This can create many issues, as illustrated in the below example:
  1. Alice sends Bob 1 BTC, and Bob sends Merchant Carol this 1 BTC for some goods.
  2. Bob sends Carols this 1 BTC, while the transaction from Alice to Bob is not yet validated. Carol sees this incoming transaction of 1 BTC to him, and immediately ships goods to B.
  3. At the moment, the transaction from Alice to Bob is still not confirmed by the network, and Bob can change the witness signature, therefore changing this transaction ID from 12345 to 67890.
  4. Now Carol will not receive his 1 BTC, as the network looks for transaction 12345 to ensure that Bob’s wallet balance is valid.
  5. As this particular transaction ID changed from 12345 to 67890, the transaction from Bob to Carol will fail, and Bob will get his goods while still holding his BTC.
With the Segregated Witness upgrade, such instances can not happen again. This is because the witness signatures are moved outside of the transaction block into an extended block, and altering the witness signature won’t affect the transaction ID.
Since the transaction malleability issue is fixed, Segregated Witness also enables the proper functioning of second-layer scalability solutions on the Bitcoin protocol, such as the Lightning Network.

Lightning Network

Lightning Network is a second-layer micropayment solution for scalability.
Specifically, Lightning Network aims to enable near-instant and low-cost payments between merchants and customers that wish to use bitcoins.
Lightning Network was conceptualized in a whitepaper by Joseph Poon and Thaddeus Dryja in 2015. Since then, it has been implemented by multiple companies. The most prominent of them include Blockstream, Lightning Labs, and ACINQ.
A list of curated resources relevant to Lightning Network can be found here.
In the Lightning Network, if a customer wishes to transact with a merchant, both of them need to open a payment channel, which operates off the Bitcoin blockchain (i.e., off-chain vs. on-chain). None of the transaction details from this payment channel are recorded on the blockchain, and only when the channel is closed will the end result of both party’s wallet balances be updated to the blockchain. The blockchain only serves as a settlement layer for Lightning transactions.
Since all transactions done via the payment channel are conducted independently of the Nakamoto consensus, both parties involved in transactions do not need to wait for network confirmation on transactions. Instead, transacting parties would pay transaction fees to Bitcoin miners only when they decide to close the channel.
https://preview.redd.it/cy56icarf3151.png?width=1601&format=png&auto=webp&s=b239a63c6a87ec6cc1b18ce2cbd0355f8831c3a8
One limitation to the Lightning Network is that it requires a person to be online to receive transactions attributing towards him. Another limitation in user experience could be that one needs to lock up some funds every time he wishes to open a payment channel, and is only able to use that fund within the channel.
However, this does not mean he needs to create new channels every time he wishes to transact with a different person on the Lightning Network. If Alice wants to send money to Carol, but they do not have a payment channel open, they can ask Bob, who has payment channels open to both Alice and Carol, to help make that transaction. Alice will be able to send funds to Bob, and Bob to Carol. Hence, the number of “payment hubs” (i.e., Bob in the previous example) correlates with both the convenience and the usability of the Lightning Network for real-world applications.

Schnorr Signature upgrade proposal

Elliptic Curve Digital Signature Algorithm (“ECDSA”) signatures are used to sign transactions on the Bitcoin blockchain.
https://preview.redd.it/hjeqe4l7g3151.png?width=1601&format=png&auto=webp&s=8014fb08fe62ac4d91645499bc0c7e1c04c5d7c4
However, many developers now advocate for replacing ECDSA with Schnorr Signature. Once Schnorr Signatures are implemented, multiple parties can collaborate in producing a signature that is valid for the sum of their public keys.
This would primarily be beneficial for network scalability. When multiple addresses were to conduct transactions to a single address, each transaction would require their own signature. With Schnorr Signature, all these signatures would be combined into one. As a result, the network would be able to store more transactions in a single block.
https://preview.redd.it/axg3wayag3151.png?width=1601&format=png&auto=webp&s=93d958fa6b0e623caa82ca71fe457b4daa88c71e
The reduced size in signatures implies a reduced cost on transaction fees. The group of senders can split the transaction fees for that one group signature, instead of paying for one personal signature individually.
Schnorr Signature also improves network privacy and token fungibility. A third-party observer will not be able to detect if a user is sending a multi-signature transaction, since the signature will be in the same format as a single-signature transaction.

4. Economics and supply distribution

The Bitcoin protocol utilizes the Nakamoto consensus, and nodes validate blocks via Proof-of-Work mining. The bitcoin token was not pre-mined, and has a maximum supply of 21 million. The initial reward for a block was 50 BTC per block. Block mining rewards halve every 210,000 blocks. Since the average time for block production on the blockchain is 10 minutes, it implies that the block reward halving events will approximately take place every 4 years.
As of May 12th 2020, the block mining rewards are 6.25 BTC per block. Transaction fees also represent a minor revenue stream for miners.
submitted by D-platform to u/D-platform [link] [comments]

Want to start fresh after the crypto crash? Here is a comprehensive guide on how to invest and prosper over the long term.

Well its happened, the crypto market just experienced the worst crash since 2014, the bubble has burst. The idiocy of newbies FOMO-ing into anything with low nominal value lead to endless twitter timelines like this, and now nobody has any idea where the market settles. What do you do now?
In the following weeks it will be a good time to rethink your investment approach and how you arrive at your decisions. Just buying whatever is shilled on Twitter or Reddit and jumping from one crypto to another isn't going to work like it did these last two months.
The good news is that we're finally back closer and closer to our long term moving average which is much more healthy for entrants, the bad news is that the fear might continue compounding if outstanding issues are not dealt with. Tether is the big concern for me personally for reasons I've stated many times, but some relief in the short term may come if the SEC and CFTC meeting on February 6th goes well. Nobody really knows where the bottom is but I think we're now past the "irrational exhuberance" stage and we're entering a period of more serious inspection where cryptos will actually have to prove themselves as useful. I suspect hype artists like CryptoNick and John McAfee will fall out of favor.
But perhaps most importantly use this as a learning experience, don't try to point fingers now. The type of dumb behavior that people were engaging in that was rewarded in a bull market (chasing pumps, going all in on a shillcoin, following hype..etc) could only ever lead to what we are experiencing now. Just like so many people jumped on the crypto bandwagon during the bull run, they will just as quickly jump on whatever bandwagon is to be used to blame for the deflation of the bubble. Nobody who pumped money into garbage without any use case will accept that they themselves with their own investing behavior were the real reason for the gross overvaluation of most cryptocurrencies, and the inevitable crash.
So if you're looking for a fresh start after the massacre (or just want to get in now), here is a guide:

Part A: Making a Investment Strategy

This is your money, put some effort into investing it with an actual strategy. Some simple yet essential advice that should apply to everyone, regardless of individual strategy:
  1. Slow down and research each crypto that you're buying for at least a week.
  2. Don't buy something just because it has risen.
  3. Don't exit a position just because it has declined.
  4. Invest only as much as you can afford to lose.
  5. Prepare enter and exit strategies in advance.
First take some time to think about your ROI target, set your hold periods for each position and how much you are actually ready to risk losing.
ROI targets
A lot of young investors who are in crypto have unrealistic expectations about returns and risk. A lot of them have never invested in any other type of financial asset, and hence many seem to consider a 5-10% ROI in a month to be unexciting.
But its important to temper your hype and realize why we had this exponential growth in the last year and how unlikely it is that we see 10x returns in the next year. What we saw recently was Greater Fool Theory in action. Those unexciting returns of 5-10% a month are much more of the norm, and much more healthy for an alternative investment class.
You can think about setting a target in terms of the market ROI over a relevant holding period and then add or decrease based on your own risk profile.
Example: Calculating a 2 year ROI target
Lets say you want to hold for 2 years now, how could you set a realistic target to strive for? You could look at a historical 2 year return as a base, preferably during a period similar to what we're facing now. Now that we had a major correction, I think we can look at the two year period starting in 2015 after we had the 2014 crash. To calculate a 2 year CAGR starting in 2015:
Year Total Crypto Market Cap
Jan 1, 2015: $5.5 billion
Jan 1, 2017: $18 billion
Compounded annual growth return (CAGR): [(18/5.5)1/2]-1 = 81%
This annual return rate of 81% comes out to about 4.9% compounded monthly. This may not sound exciting to the lambo moon crowd, but it will keep you grounded in reality. You can aim for a higher return (say 2x of that 81% rate) if you choose to take on more risky propositions. I can't tell you what return target you should set for yourself, but just make sure its not depended on you needing to achieve continual near vertical parabolic price action in small cap shillcoins because that isn't sustainable.
Once you have a target you can construct your risk profile (low risk vs. high risk category coins) in your portfolio based on your target.
Risk Management
Everything you buy in crypto is risky, but it still helps to think of these 3 risk categories:
How much risk should you take on? That depends on your own life situation for one, but also it should be proportional to how much expertise you have in both financial analysis and technology.
The general starting point I would recommend is:
Some more core principles on risk management to consider:
You can think of each crypto having a risk factor that is the summation of the general crypto market risk (Rm), but also its own inherent risk specific to its own goals (Ri).
Rt = Rm +Ri
The market risk is something you cannot avoid, it is essentially the risk that is carried by the entire market over things like regulations. What you can minimize though the Ri, the specific risks with your crypto. That will depend on the team composition, geographic risks (for example Chinese coins like NEO carry regulatory risks specific to China), competition within the space and likelihood of adoption and other factors, which I'll describe in Part 2: Crypto Picking Methodology.
Portfolio Allocation
Along with thinking about your portfolio in terms of risk categories described above, I really find it helpful to think about the segments you are in. OnChainFX has some segment categorization but I generally like to bring it down to:
Think about your "Circle of Competence", your body of knowledge that allows you to evaluate an investment. Your ability to properly judge risk and potential is going to largely correlated to your understanding of the subject matter. If you don't know anything about how supply chains functions, how can you competently judge whether VeChain or WaltonChain will achieve adoption? If you don't understand anything about the tech when you read the Cardano paper, are you really able to determine how likely it is to be adopted?
Consider the historic correlations between your holdings. Generally when Bitcoin pumps, altcoins dump but at what rate depends on the coin. When Bitcoin goes sideways we tend to see pumping in altcoins, while when Bitcoin goes down, everything goes down.
You should diversify but really shouldn't be in much more than around 12 cryptos, because you simply don't have enough competency to accurately access the risk across every segment and for every type of crypto you come across. If you have over 20 different cryptos in your portfolio you should probably think about consolidating to a few sectors you understand well.

Part B: Crypto Picking Methodology (Due Dilligence)

Do you struggle on how to fundamentally analyze cryptocurrencies? Here is a 3-step methodology to follow to perform your due dilligence:

Step 1: Filtering and Research

There is so much out there that you can get overwhelmed. The best way to start is to think back to your own portfolio allocation strategy and what you would like to get more off. For example in my view enterprise-focused blockchain solutions will be important in the next few years, and so I look to create a list of various cryptos that are in that segment.
Upfolio has brief descriptions of the top 100 cryptos and is filterable by categories, for example you can click the "Enterprise" category and you have a neat list of VEN, FCT, WTC...etc.
Once you have a list of potential candidates, its time to read about them:
  • Critically evaluate the website. If it's a cocktail of nonsensical buzzwords, if its unprofessional and poorly made, stay away. Always look for a roadmap, compare to what was actually delivered so far. Always check the team, try to find them on LinkedIn and what they did in the past.
  • Read the whitepaper or business development plan. You should fully understand how this crypto functions and how its trying to create value. If there is no use case or if the use case does not require or benefit from a blockchain, move on.
  • Check the blockchain explorer. How is the token distribution across accounts? Are the big accounts selling? Try to figure out who the whales are (not always easy!) and what the foundation/founder account is based on the initial allocation.
  • Look at the Github repos, does it look empty or is there plenty of activity?
  • Search out the subreddit and look at a few Medium or Steem blogs about the coin. How "shilly" is the community, and how much engagement is there between developer and the community?
  • I would also go through the BitcoinTalk thread and Twitter mentions, judge both the length and quality of the discussion.
You can actually filter out a lot of scams and bad investments by simply keeping your eye out on the following red flags:
  • allocations that give way too much to the founder
  • guaranteed promises of returns (Bitcooonnneeeect!)
  • vague whitepapers filled with buzzwords
  • vague timelines and no clear use case
  • Github with no useful code and sparse activity
  • a team that is difficult to find information on

Step 2: Passing a potential pick through a checklist

Once you feel fairly confident that a pick is worth analyzing further, run them through a standardized checklist of questions. This is one I use, you can add other questions yourself:
Crypto Analysis Checklist
What is the problem or transactional inefficiency the coin is trying to solve?
What is the Dev Team like? What is their track record? How are they funded, organized?
How big is the market they're targeting?
Who is their competition and what does it do better?
What is the roadmap they created and how well have they kept to it?
What current product exists?
How does the token/coin actually derive value for the holder? Is there a staking mechanism or is it transactional?
Is there any new tech, and is it informational or governance based?
Can it be easily copied?
What are the weaknesses or problems with this crypto?
The last question is the most important.
This is where the riskiness of your crypto is evaluated, the Ri I talked about above. Here you should be able to accurate place the crypto into one of the three risk categories. I also like to run through this checklist of blockchain benefits and consider which specific properties of the blockchain are being used by the specific crypto to provide some increased utility over the current transactional method:
Benefits of Cryptocurrency
Decentralization - no need for a third party to agree or validate transactions.
Transparency and trust - As blockchain are shared, everyone can see what transactions occur. Useful for something like an online casino.
Immutability - It is extremely difficult to change a transaction once its been put onto a blockchain
Distributed availability - The system is spread on thousands of nodes on a P2P network, so its difficult to take the system down.
Security - cryptographically secured transactions provide integrity
Simplification and consolidation - a blockchain can serve as a shared ledger in industries where multiple entities previously kept their own data sources
Quicker Settlement - In the financial industry when we're dealing with post-trade settlement, a blockchain can drastically increase the speed of verification
Cost - in some cases avoiding a third party verification would drastically reduce costs.

Step 3: Create a valuation model

You don't need to get into full modeling or have a financial background. Even a simple model that just tries to derive a valuation through relative terms will put you above most crypto investors. Some simple valuation methods that anyone can do:
Probablistic Scenario Valuation
This is all about thinking of scenarios and probability, a helpful exercise in itself. For example: Bill Miller, a prominent value investor, wrote a probabilistic valuation case for Bitcoin in 2015. He looked at two possible scenarios for probabalistic valuation:
  1. becoming a store-of-value equal to gold (a $6.4 trillion value), with a .25% probability of occurring
  2. replacing payment processors like VISA, MasterCard, etc. (a $350 million dollar value) with a 2.5% probability
Combining those scenarios would give you the total expected market cap: (0.25% x 6.4 trillion) + (2.5% x 350 million). Divide this by the outstanding supply and you have your valuation.
Metcalfe's Law
Metcalfe's Law which states that the value of a network is proportional to the square of the number of connected users of the system (n2). So you can compare various currencies based on their market cap and square of active users or traffic. We can alter this to crypto by thinking about it in terms of both users and transactions:
For example, compare the Coinbase pairs:
Metric Bitoin Ethereum Litecoin
Market Cap $152 Billion $93 Billion $7.3 Billion
Daily Transactions (last 24hrs) 249,851 1,051,427 70,397
Active Addresses (Peak 1Yr) 1,132,000 1,035,000 514,000
Metcalfe Ratio (Transactions Based) 2.43 0.08 1.47
Metcalfe Ratio (Address Based) 0.12 0.09 0.03
Generally the higher the ratio, the higher the valuation given for each address/transaction.
Market Cap to Industry comparisons
Another easy one is simply looking at the total market for the industry that the coin is supposedly targeting and comparing it to the market cap of the coin. Think of the market cap not only with circulating supply like its shown on CMC but including total supply. For example the total supply for Dentacoin is 1,841,395,638,392, and when multiplied by its price in early January we get a market cap that is actually higher than the entire industry it aims to disrupt: Dentistry.
More complex valuation models
If you would like to get into more fleshed out models with Excel, I highly recommend Chris Burniske's blog about using Quantity Theory of Money to build an equivalent of a DCF analysis for crypto.
Here is an Excel file example of OMG done by Nodar Janashia using Chris' model .
You should create multiple scenarios with multiple assumptions, both positive and negative. Have a base scenario and then moderately optimistic/pessimistic and highly optimistic/pessimistic scenario.
Personally I like to see at least a 50% upward potential before investing from my moderately pessimistic scenario, but you can set your own safety margin.
The real beneficial thing about modelling isn't even the price or valuation comparisons it spits out, but that it forces you to think about why the coin has value and what your own assumption about the future are. For example the discount rate you apply to the net present utility formula drastically affects the valuation, and it reflects your own assumptions of how risky the crypto is. What exactly would be a reasonable discount rate? What about the digital economy you are assuming for the coin, what levers affects its size and adoption and how likely are your assumptions to come true? You'll be a drastically more intelligent investor if you think about the fundamental variables that give your coin the market cap you think it should hold.

Summing it up

The time for lambo psychosis is over. But that's no reason to feel down, this is a new day and what many were waiting for. I've put together in one place here how to construct a portfolio allocation (taking into consideration risk and return targets), and how to go through a systematic crypto picking method. I'm won't tell you what to buy, you should always decide that for yourself and DYOR. But as long as you follow a rational and thorough methodology (feel free to modify anything I said above to suit your own needs) you will feel pretty good about your investments, even in times like these.
Edit: Also get a crypto prediction ferret. You won't regret it.
submitted by arsonbunny to CryptoCurrency [link] [comments]

Is Crypto Currency truly at risk due to Quantum Computers, and what can you do about it?

Is Crypto Currency truly at risk due to Quantum Computers, and what can you do about it?

There is no denying that the Quantum revolution is coming. Security protocols for the internet, banking, telecommunications, etc... are all at risk, and your Bitcoins (and alt-cryptos) are next!
This article is not really about quantum computers[i], but, rather, how they will affect the future of cryptocurrency, and what steps a smart investor will take. Since this is a complicated subject, my intention is to provide just enough relevant information without being too “techy.”

The Quantum Evolution

In 1982, Nobel winning physicist, Richard Feynman, hypothesized how quantum computers[ii] would be used in modern life.
Just one year later, Apple released the “Apple Lisa”[iii] – a home computer with a 7.89MHz processor and a whopping 5MB hard drive, and, if you enjoy nostalgia, it used 5.25in floppy disks.
Today, we walk around with portable devices that are thousands of times more powerful, and, yet, our modern day computers still work in a simple manner, with simple math, and simple operators[iv]. They now just do it so fast and efficient that we forget what’s happening behind the scenes.
No doubt, the human race is accelerating at a remarkable speed, and we’ve become obsessed with quantifying everything - from the everyday details of life to the entire universe[v]. Not only do we know how to precisely measure elementary particles, we also know how to control their actions!
Yet, even with all this advancement, modern computers cannot “crack” cryptocurrencies without the use of a great deal more computing power, and since it’s more than the planet can currently supply, it could take millions, if not billions, of years.
However, what current computers can’t do, quantum computers can!
So, how can something that was conceptualized in the 1980’s, and, as of yet, has no practical application, compromise cryptocurrencies and take over Bitcoin?
To best answer this question, let’s begin by looking at a bitcoin address.

What exactly is a Bitcoin address?

Well, in layman terms, a Bitcoin address is used to send and receive Bitcoins, and looking a bit closer (excuse the pun), it has two parts:[vi]
A public key that is openly shared with the world to accept payments. A public key that is derived from the private key. The private key is made up of 256 bits of information in a (hopefully) random order. This 256 bit code is 64 characters long (in the range of 0-9/a-f) and further compressed into a 52 character code (using RIPEMD-160).
NOTE: Although many people talk about Bitcoin encryption, Bitcoin does not use Encryption. Instead, Bitcoin uses a hashing algorithm (for more info, please see endnote below[vii]).
Now, back to understanding the private key:
The Bitcoin address “1EHNa6Q4Jz2uvNExL497mE43ikXhwF6kZm” translates to a private key of “5HpHagT65TZzG1PH3CSu63k8DbpvD8s5ip4nEB3kEsreAnchuDf” which further translates to a 256 bit private key of “0000000000000000000000000000000000000000000000000000000000000001” (this should go without saying, but do not use this address/private key because it was compromised long ago.) Although there are a few more calculations that go behind the scenes, these are the most relevant details.
Now, to access a Bitcoin address, you first need the private key, and from this private key, the public key is derived. With current computers, it’s classically impractical to attempt to find a private key based on a public key. Simply put, you need the private key to know the public key.
However, it has already been theorized (and technically proven) that due to private key compression, multiple private keys can be used to access the same public key (aka address). This means that your Bitcoin address has multiple private keys associated with it, and, if someone accidentally discovers or “cracks” any one of those private keys, they have access to all the funds in that specific address.
There is even a pool of a few dedicated people hunting for these potential overlaps[viii], and they are, in fact, getting very efficient at it. The creator of the pool also has a website listing every possible Bitcoin private key/address in existence[ix], and, as of this writing, the pool averages 204 trillion keys per day!
But wait! Before you get scared and start panic selling, the probability of finding a Bitcoin address containing funds (or even being used) is highly unlikely – nevertheless, still possible!
However, the more Bitcoin users, the more likely a “collision” (finding overlapping private/public key pairs)! You see, the security of a Bitcoin address is simply based on large numbers! How large? Well, according to my math, 1.157920892373x1077 potential private keys exist (that number represents over 9,500 digits in length! For some perspective, this entire article contains just over 14,000 characters. Therefore, the total number of Bitcoin addresses is so great that the probability of finding an active address with funds is infinitesimal.

So, how do Quantum Computers present a threat?

At this point, you might be thinking, “How can a quantum computer defeat this overwhelming number of possibilities?” Well, to put it simple; Superposition and Entanglement[x].
Superposition allows a quantum bit (qbit) to be in multiple states at the same time. Entanglement allows an observer to know the measurement of a particle in any location in the universe. If you have ever heard Einstein’s quote, “Spooky Action at a Distance,” he was talking about Entanglement!
To give you an idea of how this works, imagine how efficient you would be if you could make your coffee, drive your car, and walk your dog all at the same time, while also knowing the temperature of your coffee before drinking, the current maintenance requirements for your car, and even what your dog is thinking! In a nutshell, quantum computers have the ability to process and analyze countless bits of information simultaneously – and so fast, and in such a different way, that no human mind can comprehend!
At this stage, it is estimated that the Bitcoin address hash algorithm will be defeated by quantum computers before 2028 (and quite possibly much sooner)! The NSA has even stated that the SHA256 hash algorithm (the same hash algorithm that Bitcoin uses) is no longer considered secure, and, as a result, the NSA has now moved to new hashing techniques, and that was in 2016! Prior to that, in 2014, the NSA also invested a large amount of money in a research program called “Penetrating Hard Targets project”[xi] which was used for further Quantum Computer study and how to break “strong encryption and hashing algorithms.” Does NSA know something they’re not saying or are they just preemptively preparing?
Nonetheless, before long, we will be in a post-quantum cryptography world where quantum computers can crack crypto addresses and take all the funds in any wallet.

What are Bitcoin core developers doing about this threat?

Well, as of now, absolutely nothing. Quantum computers are not considered a threat by Bitcoin developers nor by most of the crypto-community. I’m sure when the time comes, Bitcoin core developers will implement a new cryptographic algorithm that all future addresses/transactions will utilize. However, will this happen before post-quantum cryptography[xii]?
Moreover, even after new cryptographic implementation, what about all the old addresses? Well, if your address has been actively used on the network (sending funds), it will be in imminent danger of a quantum attack. Therefore, everyone who is holding funds in an old address will need to send their funds to a new address (using a quantum safe crypto-format). If you think network congestion is a problem now, just wait…
Additionally, there is the potential that the transition to a new hashing algorithm will require a hard fork (a soft fork may also suffice), and this could result in a serious problem because there should not be multiple copies of the same blockchain/ledger. If one fork gets attacked, the address on the other fork is also compromised. As a side-note, the blockchain Nebulas[xiii] will have the ability to modify the base blockchain software without any forks. This includes adding new and more secure hashing algorithms over time! Nebulas is due to be released in 2018.

Who would want to attack Bitcoin?

Bitcoin and cryptocurrency represent a threat to the controlling financial system of our modern economy. Entire countries have outright banned cryptocurrency[xiv] and even arrested people[xv], and while discrediting it, some countries are copying cryptocurrency to use (and control) in their economy[xvi]!
Furthermore, Visa[xvii], Mastercard[xviii], Discover[xix], and most banks act like they want nothing to do with cryptocurrency, all the while seeing the potential of blockchain technology and developing their own[xx]. Just like any disruptive technology, Bitcoin and cryptocurrencies have their fair share of enemies!
As of now, quantum computers are being developed by some of the largest companies in the world, as well as private government agencies.
No doubt, we will see a post-quantum cryptography world sooner than most realize. By that point, who knows how long “3 letter agencies” will have been using quantum technology - and what they’ll be capable of!

What can we do to protect ourselves today?

Of course, the best option is to start looking at how Bitcoin can implement new cryptographic features immediately, but it will take time, and we have seen how slow the process can be just for scaling[xxi].
The other thing we can do is use a Bitcoin address only once for outgoing transactions. When quantum computers attack Bitcoin (and other crypto currencies), their first target will be addresses that have outgoing transactions on the blockchain that contain funds.
This is due to the fact that when computers first attempt to crack a Bitcoin address, the starting point is when a transaction becomes public. In other words, when the transaction is first signed – a signed transaction is a digital signature derived from the private key, and it validates the transaction on the network. Compared to classical computers, quantum computers can exponentially extrapolate this information.
Initially, Bitcoin Core Software might provide some level of protection because it only uses an address once, and then sends the remaining balance (if any) to another address in your keypool. However, third party Bitcoin wallets can and do use an address multiple times for outgoing transactions. For instance, this could be a big problem for users that accept donations (if they don’t update their donation address every time they remove funds). The biggest downside to Bitcoin Core Software is the amount of hard-drive space required, as well as diligently retaining an up-to-date copy of the entire blockchain ledger.
Nonetheless, as quantum computers evolve, they will inevitably render SHA256 vulnerable, and although this will be one of the first hash algorithms cracked by quantum computers, it won’t be the last!

Are any cryptocurrencies planning for the post-quantum cryptography world?

Yes, indeed, there are! Here is a short list of ones you may want to know more about:

Full disclosure:

Although I am in no way associated with any project listed above, I do hold coins in all as well as Bitcoin, Litecoin and many others.
The thoughts above are based on my personal research, but I make no claims to being a quantum scientist or cryptographer. So, don’t take my word for anything. Instead, do your own research and draw your own conclusions. I’ve included many references below, but there are many more to explore.
In conclusion, the intention of this article is not to create fear or panic, nor any other negative effects. It is simply to educate. If you see an error in any of my statements, please, politely, let me know, and I will do my best to update the error.
Thanks for reading!

References

[i] https://www.youtube.com/watch?v=JhHMJCUmq28 – A great video explaining quantum computers.
[ii] https://www.doc.ic.ac.uk/~nd/surprise_97/journal/vol4/spb3/ - A brief history of quantum computing.
[iii] https://en.wikipedia.org/wiki/Apple_Lisa - More than you would ever want to know about the Apple Lisa.
[iv] https://www.youtube.com/watch?v=tpIctyqH29Q&list=PL8dPuuaLjXtNlUrzyH5r6jN9ulIgZBpdo - Want to learn more about computer science? Here is a great crash course for it!
[v] https://www.collinsdictionary.com/dictionary/english/quantify - What does quantify mean?
[vi] https://en.bitcoin.it/wiki/Private_key - More info about Bitcoin private keys.
[vii] https://www.securityinnovationeurope.com/blog/page/whats-the-difference-between-hashing-and-encrypting - A good example of the deference between Hash and Encryption
[viii] https://lbc.cryptoguru.org/stats - The Large Bitcoin Collider.
[ix] http://directory.io/ - A list of every possible Bitcoin private key. This website is a clever way of converting the 64 character uncompressed key to the private key 128 at a time. Since it is impossible to save all this data in a database and search, it is not considered a threat! It’s equated with looking for a single needle on the entire planet.
[x] https://uwaterloo.ca/institute-for-quantum-computing/quantum-computing-101#Superposition-and-entanglement – Brief overview of Superposition and Entanglement.
[xi] https://www.washingtonpost.com/world/national-security/nsa-seeks-to-build-quantum-computer-that-could-crack-most-types-of-encryption/2014/01/02/8fff297e-7195-11e3-8def-a33011492df2_story.html?utm_term=.e05a9dfb6333 – A review of the Penetrating Hard Targets project.
[xii] https://en.wikipedia.org/wiki/Post-quantum_cryptography - Explains post-quantum cryptography.
[xiii] https://www.nebulas.io/ - The nebulas project has some amazing technology planned in their roadmap. They are currently in testnet stage with initial launch expected taking place in a few weeks. If you don’t know about Nebulas, you should check them out. [xiv] https://en.wikipedia.org/wiki/Legality_of_bitcoin_by_country_or_territory - Country’s stance on crypto currencies.
[xv] https://www.cnbc.com/2017/08/30/venezuela-is-one-of-the-worlds-most-dangerous-places-to-mine-bitcoin.html - Don’t be a miner in Venezuela!
[xvi] http://www.newsweek.com/russia-bitcoin-avoid-us-sanctions-cryptocurrency-768742 - Russia’s plan for their own crypto currency.
[xvii] http://www.telegraph.co.uk/technology/2018/01/05/visa-locks-bitcoin-payment-cards-crackdown-card-issue - Recent attack from visa against crypto currency.
[xviii] https://www.ccn.com/non-government-digital-currency-junk-says-mastercard-ceo-rejecting-bitcoin/ - Mastercards position about Bitcoin.
[xix] http://www.livebitcoinnews.com/discover-joins-visa-mastercard-barring-bitcoin-support/ - Discovers position about Bitcoin.
[xx] http://fortune.com/2017/10/20/mastercard-blockchain-bitcoin/ - Mastercard is making their own blockchain.
[xxi] https://bitcoincore.org/en/2015/12/21/capacity-increase/ - News about Bitcoin capacity. Not a lot of news…
[xxii] https://learn.iota.org/faq/what-makes-iota-quantum-secure - IOTA and quantum encryption.
[xxiii] https://eprint.iacr.org/2011/191.pdf - The whitepaper of Winternitz One-Time Signature Scheme
[xxiv] https://cardanoroadmap.com/ - The Cardano project roadmap.
[xxv] https://eprint.iacr.org/2017/490 - More about the BLISS hash system.
[xxvi] https://www.ethereum.org/ - Home of the Ethereum project.
[xxvii] https://en.wikipedia.org/wiki/SHA-3#Security_against_quantum_attacks – SHA3 hash algorithm vs quantum computers.
[xxviii] https://en.wikipedia.org/wiki/Lamport_signature - Lamport signature information.
[xxix] https://theqrl.org/ - Home of the Quantum Resistant Ledger project.
submitted by satoshibytes to CryptoCurrency [link] [comments]

Updated (Dec 2017). A collection of evidence regarding Bitcoin's takeover.

REPOSTED AS TITLE WAS INCORRECTLY PHRASED.
A month back on November 22 I posted this https://www.reddit.com/btc/comments/7eszwk/links_related_to_blockstreams_takeover_of_bitcoin/
I have added a lot more links now, please give feedback on what else I could add for next time I will add (few weeks/month).
  1. The history between btc and bitcoin Archive link
yours.org link
  1. A brief and incomplete history of censorship in /Bitcoin Archive link
  2. User posts on bitcoin about 6900 BTC that theymos stole, post gets removed. Archive link
  3. Go to /noncensored_bitcoin to see posts that have been censored in /bitcoin
  4. Theymos caught red-handed - why he censors all the forums he controls, including /bitcoin Archive link
  5. User gets banned from /bitcoin for saying "A $5 fee to send $100 is absolutely ridiculous" Archive link
  6. Greg Maxwell caught using sockpuppets Archive link
  7. Wikipedia Admins: "[Gregory Maxwell of Blockstream Core] is a very dangerous individual" "has for some time been behaving very oddly and aggressively" Archive link
  8. Remember how lightening network was promised to be ready by summer 2016? https://coinjournal.net/lightning-network-should-be-ready-this-summe Archive link
  9. rBitcoin moderator confesses and comes clean that Blockstream is only trying to make a profit by exploiting Bitcoin and pushing users off chain onto sidechains Archive link
  10. "Blockstream plans to sell side chains to enterprises, charging a fixed monthly fee, taking transaction fees and even selling hardware" source- Adam Back Blockstream CEO Archive link Twitter proof Twitter Archive link
  11. September 2017 stats post of bitcoin censorship Archive link
  12. Evidence that the mods of /Bitcoin may have been involved with the hacking and vote manipulation "attack" on /Bitcoin. Archive link
  13. bitcoin mods removed top post: "The rich don't need Bitcoin. The poor do" Archive link
  14. In January 2017, someone paid 0.23 cents for 1 transaction. As of December 2017, fees have peaked $40.
  15. Death threats by Bitcoin for cashing out
  16. Bitcoin is a captured system
  17. Bot attack against bitcoin was allegedly perpetrated by its own moderator and Blockstream’s Greg Maxwell
  18. Remember: Bitcoin Cash is solving a problem Core has failed to solve for 6 years. It is urgently needed as a technical solution, and has nothing to do with "Roger" or "Jihan".
  19. Bitcoin Cash has got nothing new.
  20. How the Bilderberg Group, the Federal Reserve central bank, and MasterCard took over Bitcoin BTC More evidence
  21. Even Core developers used to support 8-100MB blocks before they work for the Bankers Proof
  22. /Bitcoin loves to call Bitcoin Cash "ChinaCoin", but do they realize that over 70% of BTC hashrate comes from China?
  23. /bitcoin for years: No altcoin discussion, have a ban! /bitcoin now: use Litecoin if you actually need to transact!
  24. First, they said they want BCH on coinbase so they could dump it. Now they are crying about it because it's pumping.
  25. Luke-Jr thinks reducing the blocksize will reduce the fees..
  26. Core: Bitcoin isn't for the poor. Bitcoin Cash: we'll take them. Our fees are less than a cent. Core: BCash must die!
  27. How The Banks Bought Bitcoin. The Lightning Network
  28. Big Blocks Can Scale, But Will It Centralize Bitcoin?
  29. "Fees will drop when everyone uses Lightning Networks" is the new "Fees will drop when SegWit is activated"
  30. Adam Back let it slip he hires full-time teams of social media shills/trolls
  31. The bitcoin civil war is not about block size; it's about freedom vs. authoritarianism
  32. Why BCH is the real Bitcoin
  33. We don't need larger blocks, since lightning will come someday™, the same way we don't need cars or planes since teleporters will come someday™
  34. We don't need larger blocks, since lightning will come someday™, the same way we don't need cars or planes since teleporters will come someday™
  35. Facts about Adam Back (Bitcoin/Blockstream CEO) you heard it right, he himself thinks he is in charge of Bitcoin.
  36. A explaination why Core's vision is different from the real Bitcoin vision
  37. The dangerously shifted incentives of SegWit
  38. Lighting Network was supposed to be released in 2016
submitted by thepaip to btc [link] [comments]

Long live decentralized bitcoin(!) A reading list

Newbs might not know this, but bitcoin recently came out of an intense internal drama. Between July 2015 and August 2017 bitcoin was attacked by external forces who were hoping to destroy the very properties that made bitcoin valuable in the first place. This culminated in the creation of segwit and the UASF (user activated soft fork) movement. The UASF was successful, segwit was added to bitcoin and with that the anti-decentralization side left bitcoin altogether and created their own altcoin called bcash. Bitcoin's price was $2500, soon after segwit was activated the price doubled to $5000 and continued rising until a top of $20000 before correcting to where we are today.
During this drama, I took time away from writing open source code to help educate and argue on reddit, twitter and other social media. I came up with a reading list for quickly copypasting things. It may be interesting today for newbs or anyone who wants a history lesson on what exactly happened during those two years when bitcoin's very existence as a decentralized low-trust currency was questioned. Now the fight has essentially been won, I try not to comment on reddit that much anymore. There's nothing left to do except wait for Lightning and similar tech to become mature (or better yet, help code it and test it)
In this thread you can learn about block sizes, latency, decentralization, segwit, ASICBOOST, lightning network and all the other issues that were debated endlessly for over two years. So when someone tries to get you to invest in bcash, remind them of the time they supported Bitcoin Unlimited.
For more threads like this see UASF

Summary / The fundamental tradeoff

A trip to the moon requires a rocket with multiple stages by gmaxwell (must read) https://www.reddit.com/Bitcoin/comments/438hx0/a_trip_to_the_moon_requires_a_rocket_with/
Bram Cohen, creator of bittorrent, argues against a hard fork to a larger block size https://medium.com/@bramcohen/bitcoin-s-ironic-crisis-32226a85e39f#.558vetum4
gmaxwell's summary of the debate https://bitcointalk.org/index.php?topic=1343716.msg13701818#msg13701818
Core devs please explain your vision (see luke's post which also argues that blocks are already too big) https://www.reddit.com/Bitcoin/comments/61yvvv/request_to_core_devs_please_explain_your_vision/
Mod of btc speaking against a hard fork https://www.reddit.com/btc/comments/57hd14/core_reaction_to_viabtc_this_week/d8scokm/
It's becoming clear to me that a lot of people don't understand how fragile bitcoin is https://www.reddit.com/Bitcoin/comments/59kflj/its_becoming_clear_to_me_that_a_lot_of_people/
Blockchain space must be costly, it can never be free https://www.reddit.com/Bitcoin/comments/4og24h/i_just_attended_the_distributed_trade_conference/
Charlie Lee with a nice analogy about the fundamental tradeoff https://medium.com/@SatoshiLite/eating-the-bitcoin-cake-fc2b4ebfb85e#.444vr8shw
gmaxwell on the tradeoffs https://bitcointalk.org/index.php?topic=1520693.msg15303746#msg15303746
jratcliff on the layering https://www.reddit.com/btc/comments/59upyh/segwit_the_poison_pill_for_bitcoin/d9bstuw/

Scaling on-chain will destroy bitcoin's decentralization

Peter Todd: How a floating blocksize limit inevitably leads towards centralization [Feb 2013] https://bitcointalk.org/index.php?topic=144895.0 mailing list https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2013-February/002176.html with discussion on reddit in Aug 2015 https://www.reddit.com/Bitcoin/comments/3hnvi8/just_a_little_history_lesson_for_everyone_new_the/
Nick Szabo's blog post on what makes bitcoin so special http://unenumerated.blogspot.com/2017/02/money-blockchains-and-social-scalability.html
There is academic research showing that even small (2MB) increases to the blocksize results in drastic node dropoff counts due to the non-linear increase of RAM needed. http://bravenewcoin.com/assets/Whitepapers/block-size-1.1.1.pdf
Reddit summary of above link. In this table, you can see it estimates a 40% drop immediately in node count with a 2MB upgrade and a 50% over 6 months. At 4mb, it becomes 75% immediately and 80% over 6 months. At 8, it becomes 90% and 95%. https://www.reddit.com/Bitcoin/comments/5qw2wa_future_led_by_bitcoin_unlimited_is_a/dd442pw/
Larger block sizes make centralization pressures worse (mathematical) https://petertodd.org/2016/block-publication-incentives-for-miners
Talk at scalingbitcoin montreal, initial blockchain synchronization puts serious constraints on any increase in the block size https://www.youtube.com/watch?v=TgjrS-BPWDQ&t=2h02m06s with transcript https://scalingbitcoin.org/transcript/montreal2015/block-synchronization-time
Bitcoin's P2P Network: The Soft Underbelly of Bitcoin https://www.youtube.com/watch?v=Y6kibPzbrIc someone's notes: https://gist.github.com/romyilano/5e22394857a39889a1e5 reddit discussion https://www.reddit.com/Bitcoin/comments/4py5df/so_f2pool_antpool_btcc_pool_are_actually_one_pool/
In adversarial environments blockchains dont scale https://scalingbitcoin.org/transcript/hongkong2015/in-adversarial-environments-blockchains-dont-scale
Why miners will not voluntarily individually produce smaller blocks https://scalingbitcoin.org/transcript/hongkong2015/why-miners-will-not-voluntarily-individually-produce-smaller-blocks
Hal Finney: bitcoin's blockchain can only be a settlement layer (mostly interesting because it's hal finney and its in 2010) https://www.reddit.com/Bitcoin/comments/3sb5nj/most_bitcoin_transactions_will_occur_between/
petertodd's 2013 video explaining this https://www.youtube.com/watch?v=cZp7UGgBR0I
luke-jr's summary https://www.reddit.com/Bitcoin/comments/61yvvv/request_to_core_devs_please_explain_your_vision/dficjhj/
Another jratcliff thread https://www.reddit.com/Bitcoin/comments/6lmpll/explaining_why_big_blocks_are_bad/

Full blocks are not a disaster

Blocks must be always full, there must always be a backlog https://medium.com/@bergealex4/bitcoin-is-unstable-without-the-block-size-size-limit-70db07070a54#.kh2vi86lr
Same as above, the mining gap means there must always be a backlog talk: https://www.youtube.com/watch?time_continue=2453&v=iKDC2DpzNbw transcript: https://scalingbitcoin.org/transcript/montreal2015/security-of-diminishing-block-subsidy
Backlogs arent that bad https://www.reddit.com/Bitcoin/comments/49p011/was_the_fee_event_really_so_bad_my_mind_is/
Examples where scarce block space causes people to use precious resources more efficiently https://www.reddit.com/Bitcoin/comments/4kxxvj/i_just_singlehandedly_increased_bitcoin_network/
https://www.reddit.com/Bitcoin/comments/47d4m2/why_does_coinbase_make_2_transactions_pe
https://www.reddit.com/Bitcoin/comments/53wucs/why_arent_blocks_full_yet/d7x19iv
Full blocks are fine https://www.reddit.com/Bitcoin/comments/5uld1a/misconception_full_blocks_mean_bitcoin_is_failing/
High miner fees imply a sustainable future for bitcoin https://www.reddit.com/BitcoinMarkets/comments/680tvf/fundamentals_friday_week_of_friday_april_28_2017/dgwmhl7/
gmaxwell on why full blocks are good https://www.reddit.com/Bitcoin/comments/6b57ca/full_blocks_good_or_bad/dhjxwbz/
The whole idea of the mempool being "filled" is wrong headed. The mempool doesn't "clog" or get stuck, or anything like that. https://www.reddit.com/Bitcoin/comments/7cusnx/to_the_people_still_doubting_that_this_congestion/dpssokf/

Segwit

What is segwit

luke-jr's longer summary https://www.reddit.com/Bitcoin/comments/6033h7/today_is_exactly_4_months_since_the_segwit_voting/df3tgwg/?context=1
Charlie Shrem's on upgrading to segwit https://twitter.com/CharlieShrem/status/842711238853513220
Original segwit talk at scalingbitcoin hong kong + transcript https://youtu.be/zchzn7aPQjI?t=110
https://scalingbitcoin.org/transcript/hongkong2015/segregated-witness-and-its-impact-on-scalability
Segwit is not too complex https://www.reddit.com/btc/comments/57vjin/segwit_is_not_great/d8vos33/
Segwit does not make it possible for miners to steal coins, contrary to what some people say https://www.reddit.com/btc/comments/5e6bt0/concerns_with_segwit_and_anyone_can_spend/daa5jat/?context=1
https://keepingstock.net/segwit-eli5-misinformation-faq-19908ceacf23#.r8hlzaquz
Segwit is required for a useful lightning network It's now known that without a malleability fix useful indefinite channels are not really possible.
https://www.reddit.com/Bitcoin/comments/5tzqtc/gentle_reminder_the_ln_doesnt_require_segwit/ddqgda7/
https://www.reddit.com/Bitcoin/comments/5tzqtc/gentle_reminder_the_ln_doesnt_require_segwit/ddqbukj/
https://www.reddit.com/Bitcoin/comments/5x2oh0/olaoluwa_osuntokun_all_active_lightning_network/deeto14/?context=3
Clearing up SegWit Lies and Myths: https://achow101.com/2016/04/Segwit-FUD-Clearup
Segwit is bigger blocks https://www.reddit.com/Bitcoin/comments/5pb8vs/misinformation_is_working_54_incorrectly_believe/dcpz3en/
Typical usage results in segwit allowing capacity equivalent to 2mb blocks https://www.reddit.com/Bitcoin/comments/69i2md/observe_for_yourself_segwit_allows_2_mb_blocks_in/

Why is segwit being blocked

Jihan Wu (head of largest bitcoin mining group) is blocking segwit because of perceived loss of income https://www.reddit.com/Bitcoin/comments/60mb9e/complete_high_quality_translation_of_jihans/
Witness discount creates aligned incentives https://segwit.org/why-a-discount-factor-of-4-why-not-2-or-8-bbcebe91721e#.h36odthq0 https://medium.com/@SegWit.co/what-is-behind-the-segwit-discount-988f29dc1edf#.sr91dg406
or because he wants his mining enterprise to have control over bitcoin https://www.reddit.com/Bitcoin/comments/6jdyk8/direct_report_of_jihan_wus_real_reason_fo

Segwit is being blocked because it breaks ASICBOOST, a patented optimization used by bitmain ASIC manufacturer

Details and discovery by gmaxwell https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2017-April/013996.html
Reddit thread with discussion https://www.reddit.com/Bitcoin/comments/63otrp/gregory_maxwell_major_asic_manufacturer_is/
Simplified explaination by jonny1000 https://www.reddit.com/Bitcoin/comments/64qq5g/attempted_explanation_of_the_alleged_asicboost/
http://www.mit.edu/~jlrubin/public/pdfs/Asicboost.pdf
https://medium.com/@jimmysong/examining-bitmains-claims-about-asicboost-1d61118c678d
Evidence https://www.reddit.com/Bitcoin/comments/63yo27/some_circumstantial_evidence_supporting_the_claim/
https://www.reddit.com/Bitcoin/comments/63vn5g/please_dont_stop_us_from_using_asicboost_which/dfxmm75/
https://www.reddit.com/Bitcoin/comments/63soe3/reverse_engineering_an_asic_is_a_significant_task/dfx9nc
Bitmain admits their chips have asicboost but they say they never used it on the network (haha a likely story) https://blog.bitmain.com/en/regarding-recent-allegations-smear-campaigns/
Worth $100m per year to them (also in gmaxwell's original email) https://twitter.com/petertoddbtc/status/849798529929424898
Other calculations show less https://medium.com/@vcorem/the-real-savings-from-asicboost-to-bitmaintech-ff265c2d305b
This also blocks all these other cool updates, not just segwit https://www.reddit.com/Bitcoin/comments/63otrp/gregory_maxwell_major_asic_manufacturer_is/dfw0ej3/
Summary of bad consequences of asicboost https://www.reddit.com/Bitcoin/comments/64qq5g/attempted_explanation_of_the_alleged_asicboost/dg4hyqk/?context=1
Luke's summary of the entire situation https://www.reddit.com/Bitcoin/comments/6ego3s/why_is_killing_asicboost_not_a_priority/diagkkb/?context=1
Prices goes up because now segwit looks more likely https://twitter.com/TuurDemeestestatus/849846845425799168
Asicboost discovery made the price rise https://twitter.com/TuurDemeestestatus/851520094677200901
A pool was caught red handed doing asicboost, by this time it seemed fairly certain that segwit would get activated so it didnt produce as much interest as earlier https://www.reddit.com/Bitcoin/comments/6p7lr5/1hash_pool_has_mined_2_invalid_blocks/ and https://www.reddit.com/Bitcoin/comments/6p95dl/interesting_1hash_pool_mined_some_invalid_blocks/ and https://twitter.com/petertoddbtc/status/889475196322811904
This btc user is outraged at the entire forum because they support Bitmain and ASICBOOST https://www.reddit.com/btc/comments/67t43y/dragons_den_planned_smear_campaign_of_bitmain/dgtg9l2/
Antbleed, turns out Bitmain can shut down all its ASICs by remote control: http://www.antbleed.com/

What if segwit never activates

What if segwit never activates? https://www.reddit.com/Bitcoin/comments/6ab8js/transaction_fees_are_now_making_btc_like_the_banks/dhdq3id/ with https://www.reddit.com/Bitcoin/comments/5ksu3o/blinded_bearer_certificates/ and https://www.reddit.com/Bitcoin/comments/4xy0fm/scaling_quickly/

Lightning

bitcoinmagazine's series on what lightning is and how it works https://bitcoinmagazine.com/articles/understanding-the-lightning-network-part-building-a-bidirectional-payment-channel-1464710791/ https://bitcoinmagazine.com/articles/understanding-the-lightning-network-part-creating-the-network-1465326903/ https://bitcoinmagazine.com/articles/understanding-the-lightning-network-part-completing-the-puzzle-and-closing-the-channel-1466178980/
The Lightning Network ELIDHDICACS (Explain Like I Don’t Have Degrees in Cryptography and Computer Science) https://letstalkbitcoin.com/blog/post/the-lightning-network-elidhdicacs
Ligtning will increases fees for miners, not lower them https://medium.com/lightning-resources/the-lightning-paradox-f15ce0e8e374#.erfgunumh
Cost-benefit analysis of lightning from the point of view of miners https://medium.com/@rusty_lightning/miners-and-bitcoin-lightning-a133cd550310#.x42rovlg8
Routing blog post by rusty https://medium.com/@rusty_lightning/routing-dijkstra-bellman-ford-and-bfg-7715840f004 and reddit comments https://www.reddit.com/Bitcoin/comments/4lzkz1/rusty_russell_on_lightning_routing_routing/
Lightning protocol rfc https://github.com/lightningnetwork/lightning-rfc
Blog post with screenshots of ln being used on testnet https://medium.com/@btc_coach/lightning-network-in-action-b18a035c955d video https://www.youtube.com/watch?v=mxGiMu4V7ns
Video of sending and receiving ln on testnet https://twitter.com/alexbosworth/status/844030573131706368
Lightning tradeoffs http://www.coindesk.com/lightning-technical-challenges-bitcoin-scalability/
Beer sold for testnet lightning https://www.reddit.com/Bitcoin/comments/62uw23/lightning_network_is_working_room77_is_accepting/ and https://twitter.com/MrHodl/status/848265171269283845
Lightning will result in far fewer coins being stored on third parties because it supports instant transactions https://medium.com/@thecryptoconomy/the-barely-discussed-incredible-benefit-of-the-lightning-network-4ce82c75eb58
jgarzik argues strongly against LN, he owns a coin tracking startup https://twitter.com/petertoddbtc/status/860826532650123264 https://twitter.com/Beautyon_/status/886128801926795264
luke's great debunking / answer of some misinformation questions https://www.reddit.com/Bitcoin/comments/6st4eq/questions_about_lightning_network/dlfap0u/
Lightning centralization doesnt happen https://www.reddit.com/Bitcoin/comments/6vzau5/reminder_bitcoins_key_strength_is_in_being/dm4ou3v/?context=1
roasbeef on hubs and charging fees https://twitter.com/roasbeef/status/930209165728825344 and https://twitter.com/roasbeef/status/930210145790976000

Immutability / Being a swiss bank in your pocket / Why doing a hard fork (especially without consensus) is damaging

A downside of hard forks is damaging bitcoin's immutability https://www.reddit.com/Bitcoin/comments/5em6vu/what_happens_if_segwit_doesnt_activate/dae1r6c/?context=3
Interesting analysis of miners incentives and how failure is possible, don't trust the miners for long term https://www.reddit.com/Bitcoin/comments/5gtew4/why_an_increased_block_size_increases_the_cost_of/daybazj/?context=2
waxwing on the meaning of cash and settlement https://www.reddit.com/Bitcoin/comments/5ei7m3/unconfirmed_transactions_60k_total_fees_14btc/dad001v/
maaku on the cash question https://www.reddit.com/Bitcoin/comments/5i5iq5/we_are_spoiled/db5luiv/?context=1
Digital gold funamentalists gain nothing from supporting a hard fork to larger block sizes https://www.reddit.com/Bitcoin/comments/5xzunq/core_please_compromise_before_we_end_up_with_bu/dem73xg/?context=1
Those asking for a compromise don't understand the underlying political forces https://www.reddit.com/Bitcoin/comments/6ef7wb/some_comments_on_the_bip148_uasf_from_the/dia236b/?context=3
Nobody wants a contentious hard fork actually, anti-core people got emotionally manipulated https://www.reddit.com/Bitcoin/comments/5sq5ocontentious_forks_vs_incremental_progress/ddip57o/
The hard work of the core developers has kept bitcoin scalable https://www.reddit.com/Bitcoin/comments/3hfgpo/an_initiative_to_bring_advanced_privacy_features/cu7mhw8?context=9
Recent PRs to improve bitcoin scaleability ignored by the debate https://twitter.com/jfnewbery/status/883001356168167425
gmaxwell against hard forks since 2013 https://bitcointalk.org/index.php?topic=140233.20
maaku: hard forks are really bad https://www.reddit.com/Bitcoin/comments/5zxjza/adam_greg_core_devs_and_big_blockers_now_is_the/df275yk/?context=2

Some metrics on what the market thinks of decentralization and hostile hard forks

The price history shows that the exchange rate drops every time a hard fork threatens: https://i.imgur.com/EVPYLR8.jpg
and this example from 2017 https://twitter.com/WhalePanda/status/845562763820912642
http://imgur.com/a/DuHAn btc users lose money
price supporting theymos' moderation https://i.imgur.com/0jZdF9h.png
old version https://i.imgur.com/BFTxTJl.png
older version https://pbs.twimg.com/media/CxqtUakUQAEmC0d.jpg
about 50% of nodes updated to the soft fork node quite quickly https://imgur.com/O0xboVI

Bitcoin Unlimited / Emergent Consensus is badly designed, changes the game theory of bitcoin

Bitcoin Unlimited was a proposed hard fork client, it was made with the intention to stop segwit from activating
A Future Led by Bitcoin Unlimited is a Centralized Future https://blog.sia.tech/a-future-led-by-bitcoin-unlimited-is-a-centralized-future-e48ab52c817a#.p1ly6hldk
Flexible transactions are bugged https://www.reddit.com/Bitcoin/comments/57tf5g/bitcoindev_bluematt_on_flexible_transactions/
Bugged BU software mines an invalid block, wasting 13 bitcoins or $12k
https://www.reddit.com/Bitcoin/comments/5qwtr2/bitcoincom_loses_132btc_trying_to_fork_the/
https://www.reddit.com/btc/comments/5qx18i/bitcoincom_loses_132btc_trying_to_fork_the/
bitcoin.com employees are moderators of btc https://medium.com/@WhalePanda/the-curious-relation-between-bitcoin-com-anti-segwit-propaganda-26c877249976#.vl02566k4
miners don't control stuff like the block size http://hackingdistributed.com/2016/01/03/time-for-bitcoin-user-voice/
even gavin agreed that economic majority controls things https://www.reddit.com/Bitcoin/comments/5ywoi9/in_2010_gavin_predicted_that_exchanges_ie_the/
fork clients are trying to steal bitcoin's brand and network effect, theyre no different from altcoins https://medium.com/@Coinosphere/why-bitcoin-unlimited-should-be-correctly-classified-as-an-attempted-robbery-of-bitcoin-not-a-9355d075763c#.qeaynlx5m
BU being active makes it easier to reverse payments, increases wasted work making the network less secure and giving an advantage to bigger miners https://www.reddit.com/Bitcoin/comments/5g1x84/bitcoin_unlimited_bu_median_value_of_miner_eb/
bitcoin unlimited takes power away from users and gives it to miners https://medium.com/@alpalpalp/bitcoin-unlimiteds-placebo-controls-6320cbc137d4#.q0dv15gd5
bitcoin unlimited's accepted depth https://twitter.com/tdryja/status/804770009272696832
BU's lying propaganda poster https://imgur.com/osrViDE

BU is bugged, poorly-reviewed and crashes

bitcoin unlimited allegedly funded by kraken stolen coins
https://www.reddit.com/btc/comments/55ajuh/taint_analysis_on_bitcoin_stolen_from_kraken_on/
https://www.reddit.com/btc/comments/559miz/taint_analysis_on_btc_allegedly_stolen_from_kraken/
Other funding stuff
https://www.reddit.com/Bitcoin/comments/5zozmn/damning_evidence_on_how_bitcoin_unlimited_pays/
A serious bug in BU https://www.reddit.com/Bitcoin/comments/5h70s3/bitcoin_unlimited_bu_the_developers_have_realized/
A summary of what's wrong with BU: https://www.reddit.com/Bitcoin/comments/5z3wg2/jihanwu_we_will_switch_the_entire_pool_to/devak98/

Bitcoin Unlimited Remote Exploit Crash 14/3/2017

https://www.reddit.com/Bitcoin/comments/5zdkv3/bitcoin_unlimited_remote_exploit_crash/ https://www.reddit.com/Bitcoin/comments/5zeb76/timbe https://www.reddit.com/btc/comments/5zdrru/peter_todd_bu_remote_crash_dos_wtf_bug_assert0_in/
BU devs calling it as disaster https://twitter.com/SooMartindale/status/841758265188966401 also btc deleted a thread about the exploit https://i.imgur.com/lVvFRqN.png
Summary of incident https://www.reddit.com/Bitcoin/comments/5zf97j/i_was_undecided_now_im_not/
More than 20 exchanges will list BTU as an altcoin
https://www.reddit.com/Bitcoin/comments/5zyg6g/bitcoin_exchanges_unveil_emergency_hard_fork/
Again a few days later https://www.reddit.com/Bitcoin/comments/60qmkt/bu_is_taking_another_shit_timberrrrr

User Activated Soft Fork (UASF)

site for it, including list of businesses supporting it http://www.uasf.co/
luke's view
https://www.reddit.com/Bitcoin/comments/5zsk45/i_am_shaolinfry_author_of_the_recent_usedf1dqen/?context=3
threat of UASF makes the miner fall into line in litecoin
https://www.reddit.com/litecoin/comments/66omhlitecoin_global_roundtable_resolution/dgk2thk/?context=3
UASF delivers the goods for vertcoin
https://www.reddit.com/Bitcoin/comments/692mi3/in_test_case_uasf_results_in_miner_consensus/dh3cm34/?context=1
UASF coin is more valuable https://www.reddit.com/Bitcoin/comments/6cgv44/a_uasf_chain_will_be_profoundly_more_valuable/
All the links together in one place https://www.reddit.com/Bitcoin/comments/6dzpew/hi_its_mkwia_again_maintainer_of_uasfbitcoin_on/
p2sh was a uasf https://github.com/bitcoin/bitcoin/blob/v0.6.0/src/main.cpp#L1281-L1283
jgarzik annoyed at the strict timeline that segwit2x has to follow because of bip148 https://twitter.com/jgarzik/status/886605836902162432
Committed intolerant minority https://www.reddit.com/Bitcoin/comments/6d7dyt/a_plea_for_rational_intolerance_extremism_and/
alp on the game theory of the intolerant minority https://medium.com/@alpalpalp/user-activated-soft-forks-and-the-intolerant-minority-a54e57869f57
The risk of UASF is less than the cost of doing nothing https://www.reddit.com/Bitcoin/comments/6bof7a/were_getting_to_the_point_where_a_the_cost_of_not/
uasf delivered the goods for bitcoin, it forced antpool and others to signal (May 2016) https://bitcoinmagazine.com/articles/antpool-will-not-run-segwit-without-block-size-increase-hard-fork-1464028753/ "When asked specifically whether Antpool would run SegWit code without a hard fork increase in the block size also included in a release of Bitcoin Core, Wu responded: “No. It is acceptable that the hard fork code is not activated, but it needs to be included in a ‘release’ of Bitcoin Core. I have made it clear about the definition of ‘release,’ which is not ‘public.’”"
Screenshot of peter rizun capitulating https://twitter.com/chris_belcher_/status/905231603991007232

Fighting off 2x HF

https://twitter.com/MrHodl/status/895089909723049984
https://www.reddit.com/Bitcoin/comments/6h612o/can_someone_explain_to_me_why_core_wont_endorse/?st=j6ic5n17&sh=cc37ee23
https://www.reddit.com/Bitcoin/comments/6smezz/segwit2x_hard_fork_is_completely_useless_its_a/?st=j6ic2aw3&sh=371418dd
https://www.reddit.com/Bitcoin/comments/6sbspv/who_exactly_is_segwit2x_catering_for_now_segwit/?st=j6ic5nic&sh=1f86cadd
https://medium.com/@elliotolds/lesser-known-reasons-to-keep-blocks-small-in-the-words-of-bitcoin-core-developers-44861968185e
b2x is most of all about firing core https://twitter.com/WhalePanda/status/912664487135760384
https://medium.com/@StopAndDecrypt/thats-not-bitcoin-this-is-bitcoin-95f05a6fd6c2

Misinformation / sockpuppets

https://www.reddit.com/Bitcoin/comments/6uqz6k/markets_update_bitcoin_cash_rallies_for_three/dlurbpx/
three year old account, only started posting today https://archive.is/3STjH
Why we should not hard fork after the UASF worked: https://www.reddit.com/Bitcoin/comments/6sl1qf/heres_why_we_should_not_hard_fork_in_a_few_months/

History

Good article that covers virtually all the important history https://bitcoinmagazine.com/articles/long-road-segwit-how-bitcoins-biggest-protocol-upgrade-became-reality/
Interesting post with some history pre-2015 https://btcmanager.com/the-long-history-of-the-fight-over-scaling-bitcoin/
The core scalabality roadmap + my summary from 3/2017 https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2015-Decembe011865.html my summary https://www.reddit.com/Bitcoin/comments/5xa5fa/the_core_development_scalability_roadmap/
History from summer 2015 https://www.reddit.com/Bitcoin/comments/5xg7f8/the_origins_of_the_blocksize_debate/
Brief reminders of the ETC situation https://www.reddit.com/Bitcoin/comments/6nvlgo/simple_breakdown_of_bip91_its_simply_the_miners/dkcycrz/
Longer writeup of ethereum's TheDAO bailout fraud https://www.reddit.com/ethereumfraud/comments/6bgvqv/faq_what_exactly_is_the_fraud_in_ethereum/
Point that the bigblocker side is only blocking segwit as a hostage https://www.reddit.com/BitcoinMarkets/comments/5sqhcq/daily_discussion_wednesday_february_08_2017/ddi3ctv/?context=3
jonny1000's recall of the history of bitcoin https://www.reddit.com/Bitcoin/comments/6s34gg/rbtc_spreading_misinformation_in_rbitcoinmarkets/dl9wkfx/

Misc (mostly memes)

libbitcoin's Understanding Bitcoin series (another must read, most of it) https://github.com/libbitcoin/libbitcoin/wiki/Understanding-Bitcoin
github commit where satoshi added the block size limit https://www.reddit.com/Bitcoin/comments/63859l/github_commit_where_satoshi_added_the_block_size/
hard fork proposals from some core devs https://bitcoinhardforkresearch.github.io/
blockstream hasnt taken over the entire bitcoin core project https://www.reddit.com/Bitcoin/comments/622bjp/bitcoin_core_blockstream/
blockstream is one of the good guys https://www.reddit.com/Bitcoin/comments/6cttkh/its_happening_blockstream_opens_liquid_sidechain/dhxu4e
Forkers, we're not raising a single byte! Song lyrics by belcher https://gist.github.com/chris-belche7264cd6750a86f8b4a9a
Some stuff here along with that cool photoshopped poster https://medium.com/@jimmysong/bitcoin-realism-or-how-i-learned-to-stop-worrying-and-love-1mb-blocks-c191c35e74cb
Nice graphic https://twitter.com/RNR_0/status/871070843698380800
gmaxwell saying how he is probably responsible for the most privacy tech in bitcoin, while mike hearn screwed up privacy https://www.reddit.com/btc/comments/6azyme/hey_bu_wheres_your_testnet/dhiq3xo/?context=6
Fairly cool propaganda poster https://twitter.com/urbanarson/status/880476631583924225
btc tankman https://i.redd.it/gxjqenzpr27z.png https://twitter.com/DanDarkPill/status/853653168151986177
asicboost discovery meme https://twitter.com/allenscottoshi/status/849888189124947971
https://twitter.com/urbanarson/status/882020516521013250
gavin wanted to kill the bitcoin chain https://twitter.com/allenscottoshi/status/849888189124947971
stuff that btc believes https://www.reddit.com/Bitcoin/comments/6ld4a5/serious_is_the_rbtc_and_the_bu_crowd_a_joke_how/djszsqu/
after segwit2x NYA got agreed all the fee pressure disappeared, laurenmt found they were artificial spam https://twitter.com/i/moments/885827802775396352
theymos saying why victory isnt inevitable https://www.reddit.com/Bitcoin/comments/6lmpll/explaining_why_big_blocks_are_bad/djvxv2o/
with ignorant enemies like these its no wonder we won https://bitco.in/forum/threads/gold-collapsing-bitcoin-up.16/page-999 ""So, once segwit2x activates, from that moment on it will require a coordinated fork to avoid the up coming "baked in" HF. ""
a positive effect of bcash, it made blockchain utxo spammers move away from bitcoin https://www.reddit.com/btc/comments/76lv0b/cryptograffitiinfo_now_accepts_bitcoin_cash/dof38gw/
summary of craig wright, jihan wu and roger ver's positions https://medium.com/@HjalmarPeters/the-big-blockers-bead6027deb2
Why is bitcoin so strong against attack?!?! (because we're motivated and awesome) https://www.reddit.com/btc/comments/64wo1h/bitcoin_unlimited_is_being_blocked_by_antivirus/dg5n00x/
what happened to #oldjeffgarzik https://www.reddit.com/Bitcoin/comments/6ufv5x/a_reminder_of_some_of_jeff_garziks_greatest/
big blockers fully deserve to lose every last bitcoin they ever had and more https://www.reddit.com/BitcoinMarkets/comments/756nxf/daily_discussion_monday_october_09_2017/do5ihqi/
gavinandresen brainstorming how to kill bitcoin with a 51% in a nasty way https://twitter.com/btcdrak/status/843914877542567937
Roger Ver as bitcoin Judas https://imgur.com/a/Rf1Pi
A bunch of tweets and memes celebrating UASF
https://twitter.com/shaolinfry/status/842457019286188032 | https://twitter.com/SatoshiLite/status/888335092560441345 | https://twitter.com/btcArtGallery/status/887485162925285377 | https://twitter.com/Beautyon_/status/888109901611802624 | https://twitter.com/Excellion/status/889211512966873088 | https://twitter.com/lopp/status/888200452197801984 | https://twitter.com/AlpacaSW/status/886988980524396544 | https://twitter.com/BashCo_/status/877253729531162624 | https://twitter.com/tdryja/status/865212300361379840 | https://twitter.com/Excellion/status/871179040157179904 | https://twitter.com/TraceMayestatus/849856343074902016 | https://twitter.com/TraceMayestatus/841855022640033792 | https://fs.bitcoinmagazine.com/img/images/Screen_Shot_2017-08-18_at_01.36.47.original.png
submitted by belcher_ to Bitcoin [link] [comments]

25 Tools and Resources for Crypto Investors: Guide to how to create a winning strategy

Lots of people have PM'd me asking me the same questions on where to find information and how to put together their portfolio so I decided to put a guide for crypto investors, especially those who have only been in a few months and are still confused.
This is going to be Part 1 and will deal with research resources, risk and returns. In Part 2 I'll post a systematic approach to valuation and picking individual assets with derived price targets.

Getting started: Tools and resources

You don't have to be a programmer or techie to invest in crypto, but you should first learn the basics of how it functions. I find that this video by 3Blue1Brown is the best introduction to what a blockchain actually is and how it functions, because it explains it clearly and simply with visuals while not dumbing it down too much. If you want a more ELI5 version with cute cartoons, then Upfolio has a nice beginner's intro to the blockchain concept and quick descriptions of top 100 cryptocurrencies. I also recommend simply going to Wikipedia and reading the blockchain and cryptocurrency page and clicking onto a few links in, read about POS vs POW...etc. Later on you'll need this information to understand why a specific use case may or may not benefit from a blockchain structure. Here is a quick summary of the common terms you should know.
Next you should arm yourself with some informational resources. I compiled a convenient list of useful tools and sites that I've used and find to be worthy of bookmarking:
Market information
Analysis tools
Portfolio Tracking
Youtube
I generally don't follow much on Youtube because it's dominated by idiocy like Trevon James and CryptoNick, but there are some that I think are worthy of following:

Constructing a Investment Strategy

I can't stress enough how important it is to construct an actual investment strategy. Organize what your goals are, what your risk tolerance is and how you plan to construct a portfolio to achieve those goals rather than just chasing the flavor of the week.
Why? Because it will force you to slow down and make decisions based on rational thinking rather than emotion, and will also inevitably lead you to think long term.

Setting ROI targets

Bluntly put, a lot of young investors who are in crypto have really unrealistic expectations about returns and risk.
A lot of them have never invested in any other type of financial asset, and hence many seem to consider a 10% ROI in a month to be unexciting, even though that is roughly what they should be aiming for.
I see a ton of people now on this sub and on other sites making their decisions with the expectation to double their money every month. This has lead a worrying amount of newbies putting in way too much money way too quickly into anything on the front page of CoinMarketCap with a low dollar value per coin hoping that crypto get them out of their debt or a life of drudgery in a cubicle. And all in the next year or two!
But its important to temper your hype about returns and realize why we had this exponential growth in the last year. Its not because we are seeing any mass increase in adoption, if anything adoption among eCommerce sites is decreasing. The only reason we saw so much upward price action is because of fiat monetary base expansion from people FOMO-ing in due to media coverage of previous price action. People are hoping to ride the bubble and sell to a greater fool in a few months, it is classic Greater Fool Theory. That's it. We passed the $1,000 psychological marker again for Bitcoin which we hadn't seen since right before the Mt.Gox disaster, and it just snowballed the positivity as headline after headline came out about the price growth. However those unexciting returns of 10% a month are not only the norm, but much more healthy for an alternative investment class. Here are the annual returns for Bitcoin for the last few years:
Year BTC Return
2017 1,300%
2016 120%
2015 35%
2014 -60%
2013 5300%
2012 150 %
Keep in mind that a 10% monthly increase when compounded equals a 313% annual return, or over 3x your money. That may not sound exciting to those who entered recently and saw their money go 20x in a month on something like Tron before it crashed back down, but that 3X annual return is better than Bitcoin's return every year except the year right before the last market meltdown and 2017. I have been saying for a while now that we are due for a major correction and every investor now should be planning for that possibility through proper allocation and setting return expectations that are reasonable.

Risk Management

Quanitifying risk in crypto is surprisingly difficult because the historical returns aren't normally distributed, meaning that tools like Sharpe Ratio and other risk metrics can't really be used as intended. Instead you'll have to think of your own risk tolerance and qualitatively evaluate how risky each crypto is based on the team, the use case prospects, the amount of competition and the general market risk.
You can think of each crypto having a risk factor that is the summation of the general crypto market risk (Rm) as ultimately everything is tied to how Bitcoin does, but also its own inherent risk specific to its own goals (Ri).
Rt = Rm +Ri
The market risk is something you cannot avoid, if some China FUD comes out about regulations on Bitcoin then your investment in solid altcoin picks will go down too along with Bitcoin. This (Rm) return is essentially what risk you undertake to have a market ROI of 385% I talked about above. What you can minimize though is the Ri, the aset specific risks with the team, the likelihood they will actually deliver, the likelihood that their solution will be adopted. Unfortunately there is no one way to do this, you simply have to take the time to research and form your own opinion on how risky it really is before allocating a certain percentage to it. Consider the individual risk of each crypto and start looking for red flags:
  • guaranteed promises of large returns (protip: that's a Ponzi)
  • float allocations that give way too much to the founder
  • vague whitepapers
  • vague timelines
  • no clear use case
  • Github with no useful code and sparse activity
  • a team that is difficult to find information on or even worse anonymous
While all cryptocurrencies are a risky investments but generally you can break down cryptos into "low" risk core, medium risk speculative and high risk speculative
  • Low Risk Core - This is the exchange pairing cryptos and those that are well established. These are almost sure to be around in 5 years, and will recover after any bear market. Bitcoin, Litecoin and Ethereum are in this class of risk, and I would also argue Monero.
  • Medium Risk Speculative - These would be cryptos which generally have at least some product and are reasonably established, but higher risk than Core. Things like ZCash, Ripple, NEO..etc.
  • High Risk Speculative - This is anything created within the last few months, low caps, shillcoins, ICOs...etc. Most cryptos are in this category, most of them will be essentially worthless in 5 years.
How much risk should you take on? That depends on your own life situation but also it should be proportional to how much expertise you have in both financial analysis and technology. If you're a newbie who doesn't understand the tech and has no idea how to value assets, your risk tolerance should be lower than a programmer who understand the tech or a financial analyst who is experienced in valuation metrics.
Right now the trio of BTC-ETH-LTC account for 55% of the market cap, so between 50-70% of your portfolio in low Risk Core for newbies is a great starting point. Then you can go down to 25-30% as you gain confidence and experience. But always try to keep about 1/3rd in safe core positions. Don't go all in on speculative picks.
Core principles to minimize risk
  • Have the majority of your holdings in things you feel good holding for at least 2 years. Don't use the majority of your investment for day trading or short term investing.
  • Consider using dollar cost averaging to enter a position. This generally means investing a X amount over several periods, instead of at once. You can also use downward biased dollar cost averaging to mitigate against downward risk. For example instead of investing $1000 at once in a position at market price, you can buy $500 at the market price today then set several limit orders at slightly lower intervals (for example $250 at 5% lower than market price, $250 at 10% lower than market price). This way your average cost of acquisition will be lower if the crypto happens to decline over the short term.
  • Never chase a pump. Its simply too risky as its such an inefficient and unregulated market. If you continue to do it, most of your money losing decisions will be because you emotionally FOMO-ed into gambling on a symbol.
  • Invest what you can afford to lose. Don't have more than 5-10% of your net worth in crypto.
  • Consider what level of loss you can't accept in a position with a high risk factor, and use stop-limit orders to hedge against sudden crashes. Set you stop price at about 5-10% above your lowest limit. Stop-limit orders aren't perfect but they're better than having no hedging strategy for a risky microcap in case of some meltdown. Only you can determine what bags you are unwilling to hold.
  • Diversify across sectors and rebalance your allocations periodically. Keep about 1/3rd in low risk core holdings.
  • Have some fiat in reserve at a FDIC-insured exchange (ex. Gemini), and be ready to add to your winning positions on a pullback.
  • Remember you didn't actually make any money until you take some profits, so take do some profits when everyone else is at peak FOMO-ing bubble mode. You will also sleep much more comfortably once you take out the equivalent of your principal.

Portfolio Allocation

Along with thinking about your portfolio in terms of risk categories described above, I really find it helpful to think about the segments you are in. OnChainFX has some segment categorization to think about:
  • Currency
  • General Purpose Platform
  • Advertising
  • Crowdfunding Platform
  • Lending Platform
  • Privacy
  • Distributed Computing/Storage
  • Prediction Markets
  • IOT (Internet of Things)
  • Asset Management
  • Content Creation
  • Exchange Platform
I generally like to simplify these down to these 7 segments:
  • Core holdings - essentially the Low Risk Core segment
  • Platform segment
  • Privacy segment
  • Finance/Bank settlement segment
  • Enterprise Blockchain solutions segment
  • Promising/Innovative Tech segment
This is merely what I use, but I'm sure you can think of your own. The key point I have is to try to invest your medium and high risk picks in a segment you understand well, and in which you can relatively accurately judge risk. If you don't understand anything about how banking works or SWIFT or international settlement layers, don't invest in Stellar. If you have no idea how a supply chain functions, avoid investing in VeChain (even if it's being shilled to death on Reddit at the moment just like XRB was last month). Buffet calls this "circle of competence", he invests in sectors he understands and avoids those he doesn't like tech. I think doing the same thing in crypto is a wise move.
What's interesting is that often we see like-coin movement, for example when a coin from one segment pumps we will frequently see another similar coin in the same segment go up (think Stellar following after Ripple).
Consider the historic correlations between your holdings. Generally when Bitcoin pumps, altcoins dump but at what rate depends on the coin. When Bitcoin goes sideways we tend to see pumping in altcoins, while when Bitcoin goes down, everything goes down.
You should set price targets for each of your holdings, which is a whole separate discussion I'll go in Part 2 of the guide.

Summing it up

This was meant to get you think about what return targets you should set for your portfolio and how much risk you are willing to take and what strategies you can follow to mitigate that risk.
Returns around 385% (average crypto market CAGR over the last 3 years) would be a good target to aim for while remaining realistic, you can tweak it a bit based on your own risk tolerance. What category of risk your individual crypto picks should be will be determined by how much more greed you have for above average market return. A portfolio of 50% core holdings, 30% medium risk in a sector you understand well and 20% in high risk speculative is probably what the average portfolio should look like, with newbies going more towards 70% core and only 5% high risk speculative.
Just by thinking about these things you'll likely do better than most crypto investors, because most don't think about this stuff, to their own detriment.
submitted by arsonbunny to CryptoCurrency [link] [comments]

Should You Invest in Litecoin? Litecoin vs Bitcoin Mining - YouTube LITECOIN TO $155 & LTC vs BTC Litecoin vs Bitcoin (LTC vs BTC) - YouTube When to Trade Litecoin vs Bitcoin (w/ Charlie Lee)

Seit 2015 bieten die größten und bekanntesten CFD Broker wie eToro und Plus500 auch Kryptowährungen an. CFD heisst Contracts for Difference und stellt Differenzkontrakte dar, die den Handel vom Bitcoin Kurs und anderen Kryptowährungen möglich macht. Dabei wird aber keine Kryptowährung direkt erworben, sondern nur der jeweilige Kurs gehandelt. Bei eToro können, im Vergleich zu den ... Bitcoin vs. Litecoin ist hier also nicht ganz die Devise – beide Kryptowährungen haben den gleichen Konsensmechanismus. Bitcoin vs. Litecoin Mining. Bitcoin und Litecoin unterscheiden sich allerdings in der Komplexität des Verschlüsselungsprozesses, der für die Verschlüsselung von Transaktionen in Blöcken zuständig ist. Litecoin vs Bitcoin: Democracy The main difference between Litecoin vs Bitcoin is the way mining on each platform works. As I said earlier, mining Bitcoin is more difficult and more expensive than mining Litecoin. Bitcoin: 2015 vs 2019 By Marco Cavicchioli - 5 Gen 2020 Il confronto tra il prezzo medio di bitcoin nel 2015 e quello di bitcoin nel 2019 rivela che l’anno precedente al terzo halving di bitcoin si è rivelato nettamente migliore rispetto a quello precedente al secondo halving. Bitcoin vs. Ripple Anwendungsbereiche. Bitcoin hat letztendlich zwei wichtige Anwendungsbereiche. Zum einen ist es natürlich die Hauptvision, dass Bitcoin als digitale Währung den Einsatz von klassischen Fiat-Währungen (welche von Zentralbanken kontrolliert werden können) ersetzt.

[index] [47661] [40081] [18192] [2595] [2101] [25186] [9080] [32540] [50479] [38377]

Should You Invest in Litecoin?

rapido analisis de pq compro litecoin vs bitcoin. Numero de transacciones pendientes, casos de uso, implementacion en currency exchanges y mercados de futuros etc. Para ver transacciones ... Bitcoin is great vary to store value and preform large peer to peer transactions. It is very valuable because, its security was never compromised. Risk it’s ... 😱This Guy predicted the Price of Bitcoin in 2015!😱 sunny decree. Loading... Unsubscribe from sunny decree? ... Will Bitcoin Rebound in 2019? The Bull vs. Bear Case - Duration: 22:05 ... Litecoin LTC is one of the behemoths of crypto. A consistent fixture as a top 10 cryptocurrency, Litecoin was created to improve upon the bitcoin protocol. T... Litecoin targets are still in place for a $155 Litecoin, and we also look at the LTC/BTC pair to evaluate the strength of Litecoin vs. Bitcoin. Cycles of Bit...

#