Bitcoin and Cryptocurrencies
A list of resources related to Bitcoin and cryptocurrencies, including the startups in this space.
Bitcoin price from CoinDesk
CoinGecko - Prices for the top 100 cryptocurrencies by market cap.
What is Bitcoin? Bitcoin Educational Resources
The Original Bitcoin Whitepaper
Sets out the proposal for Bitcoin as a Peer-to-Peer Electronic Cash System.
It's only 9 pages long but well worth reading as it sets out the mathematical principles of how Bitcoin can be trusted without needing a trusted third party (i.e. traditional financial institution).
Bitcoin Coding and Development
The open source project which maintains and releases the Bitcoin client software, called Bitcoin Core.
Bitcoin Source Code on github
The first Bitcoin website, managed by the Bitcoin core developers. This provides an introduction, FAQ and resources for Bitcoin.
Bitcoin Developer Documentation
Learn Bitcoin and
and start building Bitcoin-based applications with these resources from the bitcoin.org website.
Bitcoin Developer Documentation - Doxygen Repository
Bitcoin on Stack Exchange
For Bitcoin information and definitions. Maintained by the Bitcoin community.
Concepts of Cyphers and Digital Signatures
Bitcoin Pull Request Review Club | @BitcoinCorePRs
A weekly review club that meets on IRC on Wednesdays at 17:00 UTC.
Bitcoin Reddit Community
Bitcoin Communities - Listed by the Bitcoin Developers
Online communities where you can discuss Bitcoin.
Other Bitcoin Resource Collections
Bitcoin Resources from Jameson Lopp
A good list
of Bitcoin resources from Bitcoin specialist Jameson Lopp, including technical resources, online courses, documentaries, blogs and discussion forums.
A List of Academic Papers on Bitcoin and Blockchain Technology on Google Docs
Introduction to Wallets from the Bitcoin Developer Guide
Advice on Choosing a Bitcoin Wallet from Bitcoin.org
Blockchain | @blockchain
The world's most popular Bitcoin wallet.
Electrum Bitcoin Wallet | @ElectrumWallet
Digital Gold: The Untold Story of Bitcoin by Nathaniel Popper
A book by New York Times technology and business report Nathaniel Popper telling the fascinating story of Bitcoin.
The Bitcoin Standard by Saifedean Ammous
Bitcoin Trading Data
glassnode | @glassnode
Consumer Finance Companies Offering Bitcoin
Consumer finance company focused on transforming the world economy with secure, simple, and less costly technology for storing and using money. They're excited about Bitcoin and digital currency.
A site where you can trade your local currency with other people for Bitcoins.
Offers a Bitcoin trading service for the UK.
Offers a service for buying Bitcoins online. Based in the Isle of Man.
A mobile banking app with Bitcoin integration. Based in Gibraltar.
A mobile app crypto platform for users to maximise the potential of their assets. Buy, sell, trade and earn interest on crypto.
Bitcoin Videos and Documentaries
Bitcoin Documentary "Why Do Banks Fear Bitcoin?"
This is a good introduction to Bitcoin as a currency.
Bitcoin Payment Processors
Bitcoin payment processor for merchants.
BitPay payment demo.
Bitcoin and Cryptocurrency Exchanges
Coinbase | @coinbase
Major US Bitcoin exchange with VC backing from the likes of Andressen Horowitz, Y Combinator and Adam Draper. Provides an easy way to buy Bitcoin.
Gemini Crypto Exchange | @gemini
Aims to build products that are simple, elegant, and secure, to help you buy Bitcoin and other cryptocurrency. Founded by the Winklevoss twins with an ethos of "asking for permission, not forgiveness", this is
a New York trust company regulated by the New York State Department of Financial Services.
US Bitcoin Exchange. Founded by Jesse Powell who has a background in digital assets for online multi-player fantasy games. Kraken has a policy of obtaining regulatory approval.
Kraken has achieved regulatory approval as a Special Purpose Depository Institution (SPDI) in the state of Wyoming. See also Kraken licenses.
One of the world's largest cryptocurrency exchanges.
200 staff, making good profits (reference). CEO is Changpeng Zhao. HQ in Malta. No major regulatory approval.
Exchange for converting digital currencies, e.g. Bitcoin to Litecoin. CEO is Erik Vorhees @ErikVoorhees
A Bitcoin exchange based in Luxembourg that allows trading between USD and Bitcoin. The company was founded as a European-focused alternative to the then-dominant bitcoin exchange Mt Gox. See Wikipedia entry.
Mexican Bitcoin exchange.
Crypto exchange, registered in British Virgin Islands, operates from Hong Kong. No major regulatory approval.
Max Keiser @maxkeiser
of the Keiser Report on Russia Today. Ex-Wall St stockbroker and early Bitcoin advocate.
Stacy Herbert @stacyherbert
of the Keiser Report on Russia Today. Economic commentator and Bitcoin advocate.
Jimmy Song @jimmysony
Ivan on Tech YouTube Channel
Bitcoin and cryptocurrency commentator and educator. Daily YouTube video show called Good Morning Crypto.
Balaji S. Srinivasan @balajis ex Andreessen Horowitz
Bitcoin News Sites
Leading site for Bitcoin news and analysis.
Altcoin Price Information
Gives the top 100 cryptocurrencies by market cap.
StartCOIN | @start_coin
A crypto currency intended for use in promoting crowdfunded projects.
Blockchain and Smart Contracts
Lightning | @lightning
An open protocol layer that leverages the power of blockchains and smart contracts to make cheap, fast, private transactions available to anyone around the world.
The Lightning network will be used to increase the speed of Bitcoin transactions.
BlockCypher.com | @BlockCypher
"Like Amazon webservices for blockchains".
Further Bitcoin Resources (To Be Categorised)
Bitcoin Knowledge Podcast
Top people in the Bitcoin industry are interviewed by Trace Mayer, Bitcoin expert and venture capitalist.
Platform for the rapid development of specialised blockchains. A product of Pythia Ltd, an Isle of Man company founded by CEO Nick Williamson in 2014. See Keiser Report interview.
By establishing a universal financial protocol (the Ripple Transaction Protocol), Ripple stands to break down the walls between financial institutions.
Digital currency forex platform.
Applying Bitcoin technology to business data systems.
Coinsilium | @CoinsiliumGroup
London-based fintech company that is focused on blockchain technology and innovation.
Transforming payroll using Bitcoin.
Decentralised platform for smart contracts. Open Source project.
Organisation set up by big banks to look at emerging financial technologies.
A trading platform that offers investors access to the global financial markets using Bitcoin and financial derivatives.
Maps your identity to your public keys, and vice versa.
A non-profit free software foundry that works on projects to benefit democratic societies and empower communities, and is home to some Bitcoin experts.
UTXO stands for Unspent Transaction Output. It represents electronic money, as ownership of UTXO means you have money.
About Public and Private Key Pairs
A public-key cipher has a pair of keys for sending messages. Both the keys in the pair belong to the person receiving the message. One key is a public key and may be given to anybody. The other key is a private key and is kept secret by the owner. A sender can encrypt a message using the public key and once encrypted, only the receiver with the private key is able to decrypt it.
A document's digital signature is the result of applying a hash function to the document.
Key tampering is a major security weakness with public-key cryptography.
Storing Bitcoins Locally
Technically you don't store bitcoins anywhere, what you store are the keys used to access your public bitcoin addresses and sign transactions. This information is stored in a Bitcoin wallet.
Types of Bitcoin Wallet
Online wallet - This is a service provided to you by another party, and stores your private keys online. This has the convenience factor of being a service provided to you, i.e. you don't have to take care of all the technical aspects of running a Bitcoin wallet yourself. Being online, it also offers convenient access. However, technically someone else is in charge of your private keys, which means you aren't in ultimate control of your Bitcoins.
Bitcoin Online Wallet Providers
Blockchain Technology Startups