How To Get A Bitcoin Address & Why It Is Important
Who Is Satoshi? Rounding Up The Usual Suspects After Today
Bitcoin for beginners
How ironic that one day everyone began to hear that they were cryptocurrencies, but everything that referred to them was synonymous with Bitcoin everywhere they talk about it, the strange thing is that more than 10 have passed years since this project started and many continue with blindfolds, we have evolved, revolutionary things have come into our lives, the last decades have come technologies that have changed our paradigms, such as the internet and many more came one of them it's bitcoin. Bitcoin arose from the need for a safe, transparent and reliable money. All this is described by Satoshi Nakamoto in his white paper https://www.bitcoin.org/bitcoin.pdf this is at the hand of all so that we can see and read it and know how its structure is shaped and the purpose it has as a currency. Its operation occurred on January 3, 2009, when the genesis block of the chain was published, which was the first block mined in the network, bitcoin turns out to be for the time a magnificent money for the environment that was growing and its use was not long in Expanding its adoption, Hal Finney was one of the first people to support and contribute with Bitcoin since it was part of one of the first nodes, bitcoin has a maximum number of bitcoins that can be created on the network which is 21 million BTC Being this way it solves the problem of inflation since it is a deflationary currency, this system means that no more can be generated and its value will rise more over time due to the supply and demand that there will be in the market. Every time a transaction is made there will be a number of validators that work to verify that the network is correct, this is through the blockchain is the accounting book where all the transactions made from the genesis block are stored , it is public and we can all see how it works that they do not draw cards up their sleeves, these blocks are mined every 10 minutes with a size of 1 mb approximately 2048 transactions that were made and will be mined by a very important group called miners who solve a mathematical process called proof of work with this will be the final process for your BTC sent will already be in the hands of its recipient. To make a transaction you only need the address to which you want to send BTC or the QR code to be faster and select the amount in your wallet, with this you will only have to pay a commission for the work carried out by the miners that can vary depending on the time with which you want your transaction to be verified or to be mined in the next block of the chain. Today Bitcoin is the most important currency in the entire market with a strong ecosystem and a very large community that grows more for the security it offers, its price when making this post reaches $ 9,342.58 and a market capitalization of 168,004,364,619, $ 45 with which it takes the number 1 spot on the coinmarketCap list. original post. Bitcoin para principiantes
Fifty Years of Cypherpunk: History, Personalities, And Spread of its ideas
In this review, we tell how the ideas of cypherpunk were born, how they influenced cryptocurrencies, and modern technologies, who formed the basis and why its popularity these days has grown again.
From the early days to today: the chronology of key events of the cypherpunk
In the early 1970s,James Ellis of the UK Government Communications Center put forward the concept of public-key cryptography. In the early 1980s, small groups of hackers, mathematicians and cryptographers began working on the realization of this idea. One of them was an American cryptographer, Ph.D. David Chaum, who is sometimes called the godfather of cypherpunk. This new culture has proclaimed computer technology as a means of destroying state power and centralized management systems.Key figure among the cypherpunk of the 80s — Intel specialist Timothy C. May. His dream was to create a global system that allows anonymous exchange of information. He created the concept of the BlackNet system. In September 1988, May wrote The Crypto-Anarchist Manifesto: people themselves, without politicians, manage their lives, use cryptography, use digital currencies, and other decentralized tools.In 1989,David Chaum founded DigiCash an eCash digital money system with its CyberBucks and with the blind digital signature technology.Since 1992, Timothy May, John Gilmore (Electronic Frontier Foundation), and Eric Hughes (University of California) have begun holding secret meetings and regular PGP-encrypted mailing through anonymous remailer servers. And finally, in 1993 Eric Hughes published a fundamental document of the movement — А Cypherpunk's Manifesto. The importance of confidentiality, anonymous transactions, cryptographic protection — all these ideas were subsequently implemented in cryptocurrencies.The term "cypherpunk" was first used by hacker and programmer Jude Milhon to a group of crypto-anarchists.In 1995,Julian Assange, the creator of WikiLeaks, published his first post in cypherpunk mailing.In 1996,John Young and Deborah Natsios created the Cryptome, which published data related to security, privacy, freedom, cryptography. It is here that subsequently will be published data from the famous Edward Snowden.In 1997, cryptographerDr. Adam Back (you know him as CEO of Blockstream) created Hashcash, a distributed anti-spam mechanism.In 1998, computer engineer Wei Dai published two concepts for creating a b-money digital payment system:
Each member of the system has a copy of the system database with user funds balances (this idea found itself in Bitcoin).
Distributed base, but not everyone has a copy. To maintain the integrity of participants, deposits, fines, and incentives are provided. This was later implemented in the Proof-of-Stake consensus algorithm.
In April 2001,Bram Cohen developed the BitTorrent protocol and application.In 2002,Paul Syverson, Roger Dingledine and Nick Mathewson presented the alpha version of the anonymity network named TOR Project.In 2004, cypherpunk Hal Finney created the Reusable Proof of Work (RPoW) algorithm. It was based on Adam Back's Hashcash but its drawback was centralization.In 2005, cryptographer Nick Szabo, who developed the concept of smart contracts in the 1990s, announced the creation of Bit Gold — a digital collectible and investment item.In October 2008, legendary Satoshi Nakamoto created themanifesto“Bitcoin: A Peer-to-Peer Electronic Cash System”, which refers to the works of the cypherpunk classics Adam Back and Wei Dai.In 2011,Ross William Ulbricht aka Dread Pirate Roberts created the Silk Road, the first major market for illegal goods and services on the darknet.In 2016,Julian Assange released the book "Cypherpunks: Freedom and the future of the Internet."At the beginning of 2018,Pavel Durov, the creator of Telegram, announced the launch of the TON multi-blockchain platform and mentioned his plans to launch TON ICO.In 2019, the Tor Project introduced an open anti-censorship group.
Plenty of services, products, and technologies were inspired by cypherpunk: Cryptocurrencies, HD (Hierarchical Deterministic) crypto wallets, Coin Mixers, ECDHM addresses, Privacy Coins. The ideas of distribution and anonymity were also implemented in the torrents and VPN. You can see the embodiment of cybersecurity ideas in the electronic signatures and protected messengers (Telegram, Signal, and many others).Why there were so many talks about cypherpunk this spring?In April 2020, Reddit users suggested that the letter from the famous cypherpunks mailing dated September 19, 1999, was written by Satoshi Nakamoto himself (or someone close to him). This letter is about the functioning of ecash. Anonymous (supposed Satoshi) talks about the "public double-spending database" and Wei Dai's b-money as a possible foundation for ecash.In addition, researchers of the mystery "Who is Satoshi Nakamoto?" periodically make some noise and discover the next "secret" about one or another legendary cypherpunks. So, in May 2020, Adam Back wrote in response to videos and new hype discussions that, despite some coincidences, he is not Satoshi.Other heroes of the scene are not idle too: in April 2020, David Chaum received $9.7 million during the presale of the confidential coin xx, created to encourage venture investors.
As you can see from the Satoshi Nakamoto's mentions and from the stories of DigiCash, Hashcash, RPoW, Bit Gold, the movement of cypherpunk influenced a lot the emergence of cryptocurrencies. As governments and corporations restrict freedom and interfere with confidentiality, cypherpunk ideas will periodically rise in popularity. And this confrontation will not end in the coming decades.
50 Bitcoins that have been lying motionless since 2009 have been awakened. Coins were received as a reward for the block on February 9, when the first cryptocurrency network was only a month old. It is believed that these Bitcoins may belong to Satoshi Nakamoto, since at that time only 3-4 people were mining.
Bitcoin whales withdrew 17,320 BTC ($ 169.4 million) from the largest cryptocurrency exchanges in just a few hours. The purpose of all these transactions is unknown, neither are the identities of the whales.
Bitcoin transaction fees increased by 1250% from April 11th to May 14th. A large portion of the increase came in the days preceding and following the Bitcoin halving.
Joan Rowling, the author of Harry Potter books, wondered what Bitcoin is and how it works. Elon Musk, Vitalik Buterin, and hundreds of other Twitter users came to the rescue. Turned out Rowling has only ‘been trolling Bitcoin in the hope of boosting her significant Ethereum holdings.‘ In case you ever wanted to know, Elon Musk owns only 0,25 BTC. And that's it.
An unplanned fork occurred on the Ethereum 2.0 test network. Afri Shoedon, the lead developer of the ETH 2.0 multi-client test network, Schlesi, reported chain sharing as a result of a breach of consensus among customers.
Russia is not yet ready to accept cryptocurrencies. New bills provide for the introduction of administrative and criminal liability for violation of the rules for working with digital currencies. The State Duma wants to introduce criminal liability for crypto transactions.
The Iranian parliament has proposed that cryptocurrencies be included in the current “currency smuggling” legislation, and cryptocurrency exchanges will be required to obtain a license from the Central Bank of Iran to operate in the country, as well as meet the requirements for exchanging foreign currencies.
Intruders created a fake account of Sergey Brin (Google Founder) on YouTube and promised 5000 BTC distribution on his behalf. At a certain moment, over 100 thousand people watched the live broadcast. The organizers suggested transferring from 0.1 to 25 BTC in Bitcoins to their account in order to get twice as much. The video and channel are currently unavailable.
The first transaction of the year was made from the wallet that stored the Bitcoins stolen from the Bitfinex exchange in 2016. Unknown persons transferred 28.39124 BTC ($258k) to an anonymous address, and 2.275952 BTC ($20.6k) were sent to another wallet as part of the same transaction.
Robert Kiyosaki, “Rich Dad Poor Dad” author, says $75,000 Bitcoin possible as the economy is “dying”.
John McAfee has been accused of having copied the whitepaper of his Ghost Coin from other similar projects.
Kraken exchange creates new jobs. The wives, husbands, mothers, children, and roommates of the current employees were hired thanks to a questionnaire sent to them by the company.
As part of a recent tweet calling on all novelists to message her with their questions on Bitcoin (BTC), CoinDesk journalist Leigh Cuen publicized a tweeted response from none other than beloved Harry Potter author J. K. Rowling. "I don’t understand Bitcoin," Rowling said, adding, "Please explain it to me." Dear J. K. Rowling: The first thing you need to understand is that Bitcoin is magic. It allows you to exchange money with anyone in the world instantly, cheaply and securely, without the need for any centralized, Goblin-based banking authority. Chapter 1: The White Paper From No One Bitcoin was invented by a mysterious computer programmer named Satoshi Nakamoto — almost assuredly a pseudonym. In Bitcoin’s 10 year history, the identity of Bitcoin’s creator has never been unearthed. We can refer to him here as He-Who-Has-Not-Been-Named. Chapter 2: The Self-Writing Book Ownership of each coin is confirmed and recorded instantly in a digital ledger called a Blockchain — similar to how the Quill of Acceptance records the name of each new potential Hogwarts student in the Book of Admittance. Except instead of recording magical births, we’re recording who does and doesn’t own a particular coin. This ledger is public and allows anyone to see who has owned a given coin throughout its history. A good visual representation for this process is a checkout card in a library book. Contrasting with Gringotts (as well as with muggle banks), Bitcoin has no set hours of operation. You can send your Bitcoin anywhere in the world — day or night, 365 days per year — and the recipient will receive it in a matter of seconds. It's also pretty darn secure, no dragons necessary. Chapter 3: The Unconjurable Coin Following Gamp’s Law of Elemental Transfiguration, new money cannot be conjured from nothing. Bitcoin respects this particular law far better than any government-issued currency. Only 21 million coins will ever exist on the Bitcoin network, and nothing can ever change that. By capping the number of Bitcoin to this finite amount, scarcity bestows each coin with a certain level of intrinsic value. It also protects Bitcoin from the woes of extreme hyperinflation seen in government-issued currencies. Chapter 4: The Magical Mine Bitcoin transactions must be validated in order for them to be added to the Blockchain ledger. Anyone in the world is able to contribute to this mining process using computer processing power. The first miner to confirm each new batch of transactions, called a block, receives a fresh issuance of brand new, never-before-spent Bitcoin as a reward. As a whole, this process would make a fine candidate for the Ludicrous Patents Office. Chapter 5: The Secret Key Users store their Bitcoin in a digital account called a wallet. Each wallet is protected by a unique private key, sometimes recorded as a series of human-readable words. Similar to a passcode or spell, knowing the right combination of words allows anyone to access the coins stored in a particular wallet. On the other hand, losing this key means that its corresponding wallet can never be opened again. That is why it is important to keep your wallet's private key a secret, while also maintaining adequate backups in as many locations as possible. Seven is a great number — and you don't even have to kill anyone to make them. Unlike sending bank wires, checks or other online payments, sending and receiving Bitcoin does not directly expose any party's private information. To receive Bitcoin, one simply shares their public wallet address — a string of letters and numbers — which, in and of itself, poses no hacking risk. Kind of like an email, but for money. Chapter 6: The Faceless Exchange Bitcoin can be bought and sold using any number of online marketplaces called exchanges. Coins can be traded for nearly any global currency — save, perhaps, Galleons — at constantly fluctuating prices. They can also be traded for other Blockchain-based currencies. You also do not need to buy a whole coin. You can buy any portion of a Bitcoin, divisible up to 100,000,000 individual pieces. For example, 0.01 BTC is currently valued at roughly $92 (or 72 Great BP). Chapter 7: Unfogging the Future Bitcoin's 10-year history has seen our community transfigured in many different ways. Though the technology began as a way to allow people to securely send money online without the oversight of banks or governments, it is now so much more. Blockchain is being used to create self-executing applications that, in some ways, think for themselves. Developers are utilizing the technology to craft unhackable voting platforms, impossibly huge file storage methods, provably fair betting systems (sure to stoke even Ludo Bagman's ire), and even authenticate and distribute art across every medium to individuals around the world. We can't predict all the magical ways Bitcoin's underlying technology will impact our lives in the future. Divination is, after all, a woolly discipline. What we can say for certain is that Blockchain's strength is in redistributing power. It removes the need for governing bodies and returns the power to share knowledge, riches and even the control of individual privacy back to the people.
Top-60 bitcoin/crypto quotes of the last decade, because reading them makes you feel good, and it feels good to feel good. Also one trading tip
First, number one trading tip for the next decade (in my opinion): XXA/XLM trading pair, price is 5.20 XLM (0.3588 USD). Ixinium XXA is so undervalued right now. Target profit +300% for this year. Backet by precious metals. Precious metals 100% insured by Lloyd's of London. Target price levels for this year because of precious metals base value: 12.0 XLM (0.83 USD, +130.6%) 18.8 XLM (1.30 USD, +261.5%) 23.2 XLM (1.60 USD, +345.9%) Price up since Coinmarketcap listing 7 days ago: 47.26% XXA/XLM trading pair on Stellarport and StellarX exchanges with zero trading fee. It's not too late to become an Ixinium whale :) My favorite bitcoin/crypto quotes, last ten years:
Came into Bitcoin for the short-term dollar gains. Stayed in Bitcoin for the long-term bitcoin gains.
Fiat addicts you to spending. Bitcoin addicts you to saving.
There are 1,900x more dollars in existence today than there was less than a hundred years ago. Bitcoin has no top because fiat has no bottom.
Most investors would be better off if they lost the password to their account and couldn’t log in for a few years.
How I learned to stop worrying and love the bear market: Value your wealth in bitcoin not fiat.
If I had a Bitcoin for every time someone asked me if I know who Satoshi is... I'd be Satoshi.
Every second bitcoin stays out of the spotlight, is another second we get to build unopposed. We can't take this time for granted.
You can't be excited about Bitcoin and fear the bear market. It's like being excited for Christmas but fearing winter. The bear market is a natural part of Bitcoin's mass adoption.
Crypto is the only money that works on the internet. But it's also the only money that works in space. It's really expensive to bring gold bars to Mars.
The fact that your normie friends don't think Bitcoin is cool yet is the reason why there is still massive upside potential.
Feel free to print (fiat money) as much as you need, as I am already all in crypto.
Satoshi walks in to a bar. Nobody knows.
Fiat supply: unlimited. Gold supply: unknown. Bitcoin supply: 21 million.
Most people still don’t know anything about Bitcoin except its price. But they don’t know why Bitcoin has a price in the first place. Hence the skepticism. When you don’t know why something has a price, it is impossible to understand how much it can really be worth.
There can never be more than 17 million people who own 1 full bitcoin. But in practice, there will be far fewer.
Internet allowed you to never have to go to the library. Bitcoin will allow you to never have to go to the bank.
Google's CEO is Indian
Nokia's CEO is Indian Adobe's CEO is Indian Amazon's BOD is Indian MasterCard's CEO is Indian Microsoft's CEO is Indian Pepsico's CEO was Indian indra nooyi Nasa has 58% Indian employees Do something towards $Btc bans in India! ENOUGH IS ENOUGH.
When you trade trends, you can be the last person to join the trend & first person to leave the trend & you can still outperform everyone else in long term simply because others will keep guessing the tops & bottoms while you will keep riding confirmed trends.
You don't need to fomo into positions, if you accumulate early.
If your "financial advisor" doesn't advise you to buy crypto, fire 'em.
Bitcoin doesn't care about your feelings. It also doesn't care about your gender, ethnicity, sexual preference or religion. Bitcoin just is.
Want to prove to an investor that your crypto product is needed? Get people to use it. It is really hard to argue with usage.
Is it possible to be a BTC maximalist and be Vegan? Asking for a friend..
If you think that bitcoin is not going to the mainstream, think again.
Most people don’t know what money is. This is why Bitcoin is still underrated. First, learn what money is. Then, you will be able to leverage the massive opportunity that is Bitcoin.
If you think the people in charge know exactly what they’re doing, do nothing & continue on with your life. If you think those in charge may NOT actually be as smart as they want us to think, buy a little Bitcoin. The status quo is a bet on humans, but Bitcoin is a bet on math.
Bitcoin is only risky to those who don’t understand it.
Short term volatility doesn’t phase long term investors.
If you manage your risk, your profits will take care of itself. If you don't, your parents will take care of you.
For every person in the world, there are only 0.00225764 bitcoins.
If you did your research, this bear market was expected. Bear or bull market, it’s business as usual for true Bitcoiners.
For Bitcoin to succeed, the whole world doesn't need to understand its value proposition. Those who do will profit from its monetization. Those who don't will naturally adopt this better money.
Economic reality imposes itself onto the world whether you're aware of it or not.
This is not financial advice. This is life advice. Buy Bitcoin.
If Banks & Fiat are horse carriages, then Bitcoin isn't merely cars, it's fucking teleportation.
How Bitcoin enables global prosperity:
Bitcoin makes you future-oriented Bitcoin makes delaying gratification easier Bitcoin makes saving & capital accumulation easier Bitcoin makes investing easier Bitcoin makes global trade easier Bitcoin makes advancing civilization easier
Bitcoin is the ultimate marshmallow experiment. People who are able to hodl for longer will tend to have better life outcomes.
Other than your human time, Bitcoin is the scarcest thing on earth. Human time will become more abundant as life expectancy increases. Bitcoin, however, will only become scarcer.
The energy cost of Bitcoin mining will pale in comparison to the improvements in the world’s productivity and prosperity that are enabled by Bitcoin.
Pros of bear market:
-You can buy more Bitcoin -Devs more productive than ever -Weak hands driven out+hodler base strengthened -Focus on fundamentals, not short-term price -Overvalued shitcoins deflated -Critical Infrastructure being built out, making next bull run even fiercer
The more productive we are during the bear market, the harder Bitcoin will pump in the next bull market. Ignore short-term price action. Focus on Bitcoin fundamentals.
Bitcoin bear market is the best time for buying, learning and staying miles ahead of the normies who will once again be late to the game and will buy the top.
Before you invest in Bitcoin, invest in educating yourself about Bitcoin. Understanding Bitcoin will make your conviction much stronger and enable you to maximize your gains.
There are 2 ways you can adopt Bitcoin:
Early on & willingly-> result: allows you to capture upside as Bitcoin grows & becomes widely used or
Much later & not having another choice-> result: failing to capture most upside from Bitcoin's monetization.
The choice is yours.
The overwhelming majority of highly intelligent people I talk to still have no idea why Bitcoin is valuable. We are extremely early. The ability to identify opportunity before others and take advantage of the information asymmetry is key.
Bitcoin will succeed with or without you. Don’t be left behind.
In the 90s people couldn’t imagine that the Internet would replace newspapers, TV, phone calls, shops & many other things. Today, people can't imagine Bitcoin becoming mass adopted money. Bitcoin will do to money what Internet did to information. And money is a way bigger market.
If every millionaire in the US wanted to have just 1 bitcoin they wouldn't be able to. There will always be fewer bitcoins than there are millionaires in the US (let alone the whole world). Ignore this at your own risk.
The corporations & institutions that stand to lose from Bitcoin adoption are made up of individuals who stand to benefit massively from Bitcoin adoption. Realizing that every group or entity is made up of self-motivated individuals is key to realizing why Bitcoin will succeed.
Bitcoin self-selects for people with:
* Low time preference * Long attention span * Commitment * Authenticity * Patience * Persistence * Ability to focus * Ability to go against the mainstream Bitcoin is a marathon, not a sprint.
If you don’t have a deep understanding of:
What money is
Functions of money
Money properties that fulfill its various functions
Then don’t you dare criticize Bitcoin.
Bitcoin doesn’t care:
- what color you are - what sex you are - what age you are - what your religion is - who your parents are - which university/school you went to - who you’re friends with - how expensive your lawyer is Bitcoin cannot discriminate.
You chase money every single day. You stress over money all your life. You worship money.
But you have no idea why money is valuable. Money controls your life because you have no understanding of what it is. Once you ask yourself “What is money?”, Bitcoin will make sense.
Satoshi Nakamoto deserves:
- Nobel Prize in Economics - Nobel Peace Prize - Nobel Prize in Physics But thankfully the last thing Satoshi needs is the validation of the establishment.
Bitcoin is doing better than corporations & altcoins though it never had:
- CEO - Marketing - Salaries - ICO - Partnerships - Headquarters - Customer support Bitcoin is an emergent superorganism. Members contribute according to their ability, driven by passion more than greed.
July 2011 - $31
- “Damn, I should've bought bitcoin earlier” Apr 2013 - $266 - “Damn, I should've bought bitcoin earlier” Nov 2013 - $1,242 - “Damn, I should've bought bitcoin earlier” Dec 2017 - $19,891 - “Damn, I should've bought bitcoin earlier” 2022-2023 - ... - “Damn..”
Successful crypto trading boils down to correctly predicting how the whales will torture the normies next.
Bitcoin doesn’t wait for anyone. It’s up to you if you want to learn this the hard way.
Percentage of world using the Internet in 1995 = 0.4%
Percentage of world using the Internet in 2019 = 58.8% Bitcoin is to money what the Internet is to information. Percentage of world using Bitcoin in 2019 = 0.4% If you thought you are late to Bitcoin, think again.
I didn't choose the dollar.
I didn't choose the euro. I didn't choose the pound. I didn't choose the yen. I didn't choose the ruble. I didn't choose fractional reserve banking. I didn't choose central banks. I didn't choose quantitative easing. I choose Bitcoin.
Go to location
Social Security #
Proof of address
Unreadable legal docs
Wait a week for your funds
Which one will the next generation choose? Many of these wisdom quotes are from the author of the new book called “This ₿ook Will Save You Time”, and he's donating all of the proceeds from the book sales to a Bitcoin developer.
Dear Groestlers, it goes without saying that 2020 has been a difficult time for millions of people worldwide. The groestlcoin team would like to take this opportunity to wish everyone our best to everyone coping with the direct and indirect effects of COVID-19. Let it bring out the best in us all and show that collectively, we can conquer anything. The centralised banks and our national governments are facing unprecedented times with interest rates worldwide dropping to record lows in places. Rest assured that this can only strengthen the fundamentals of all decentralised cryptocurrencies and the vision that was seeded with Satoshi's Bitcoin whitepaper over 10 years ago. Despite everything that has been thrown at us this year, the show must go on and the team will still progress and advance to continue the momentum that we have developed over the past 6 years. In addition to this, we'd like to remind you all that this is Groestlcoin's 6th Birthday release! In terms of price there have been some crazy highs and lows over the years (with highs of around $2.60 and lows of $0.000077!), but in terms of value– Groestlcoin just keeps getting more valuable! In these uncertain times, one thing remains clear – Groestlcoin will keep going and keep innovating regardless. On with what has been worked on and completed over the past few months.
UPDATED - Groestlcoin Core 2.18.2
This is a major release of Groestlcoin Core with many protocol level improvements and code optimizations, featuring the technical equivalent of Bitcoin v0.18.2 but with Groestlcoin-specific patches. On a general level, most of what is new is a new 'Groestlcoin-wallet' tool which is now distributed alongside Groestlcoin Core's other executables. NOTE: The 'Account' API has been removed from this version which was typically used in some tip bots. Please ensure you check the release notes from 2.17.2 for details on replacing this functionality.
Builds are now done through Gitian
Calls to getblocktemplate will fail if the segwit rule is not specified. Calling getblocktemplate without segwit specified is almost certainly a misconfiguration since doing so results in lower rewards for the miner. Failed calls will produce an error message describing how to enable the segwit rule.
A warning is printed if an unrecognized section name is used in the configuration file. Recognized sections are [test], [main], and [regtest].
Four new options are available for configuring the maximum number of messages that ZMQ will queue in memory (the "high water mark") before dropping additional messages. The default value is 1,000, the same as was used for previous releases.
The rpcallowip option can no longer be used to automatically listen on all network interfaces. Instead, the rpcbind parameter must be used to specify the IP addresses to listen on. Listening for RPC commands over a public network connection is insecure and should be disabled, so a warning is now printed if a user selects such a configuration. If you need to expose RPC in order to use a tool like Docker, ensure you only bind RPC to your localhost, e.g. docker run [...] -p 127.0.0.1:1441:1441 (this is an extra :1441 over the normal Docker port specification).
The rpcpassword option now causes a startup error if the password set in the configuration file contains a hash character (#), as it's ambiguous whether the hash character is meant for the password or as a comment.
The whitelistforcerelay option is used to relay transactions from whitelisted peers even when not accepted to the mempool. This option now defaults to being off, so that changes in policy and disconnect/ban behavior will not cause a node that is whitelisting another to be dropped by peers.
A new short about the JSON-RPC interface describes cases where the results of anRPC might contain inconsistencies between data sourced from differentsubsystems, such as wallet state and mempool state.
A new document introduces Groestlcoin Core's BIP174 interface, which is used to allow multiple programs to collaboratively work to create, sign, and broadcast new transactions. This is useful for offline (cold storage) wallets, multisig wallets, coinjoin implementations, and many other cases where two or more programs need to interact to generate a complete transaction.