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Bitcoin and Cryptocurrencies

A list of resources related to Bitcoin and cryptocurrencies, including the startups in this space.

Bitcoin.org
The first Bitcoin website, managed by the Bitcoin core developers. This provides an introduction, FAQ and resources for Bitcoin.

Bitcoin Reddit Community

Bitcoin Source Code on github

Coinbase | @coinbase
Major US Bitcoin exchange with VC backing from the likes of Andressen Horowitz, Y Combinator and Adam Draper.

Blockchain | @blockchain
The world's most popular Bitcoin wallet.

Circle.com
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.

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.

LocalBitcoins.com
A site where you can trade your local currency with other people for Bitcoins.

Bittylicious
Offers a Bitcoin trading service for the UK.

CoinCorner
Offers a service for buying Bitcoins online. Based in the Isle of Man.

Advice on Choosing a Bitcoin Wallet from Bitcoin.org

Electrum Bitcoin Wallet | @ElectrumWallet

CoinDesk.com
Leading site for Bitcoin news and analysis.

Bitcoin Documentary "Why Do Banks Fear Bitcoin?"
This is a good introduction to Bitcoin as a currency.

BitPay.com
Bitcoin payment processor for merchants.
BitPay payment demo.

ShapeShift.io
Exchange for converting digital currencies, e.g. Bitcoin to Litecoin.

Abra
A PayPal rival that makes use of a Bitcoin backend to facilitate worldwide payments.

StartCOIN | @start_coin
A crypto currency intended for use in promoting crowdfunded projects.

Collection of Bitcoin Links by Balaji S. Srinivasan @balajis of Andreessen Horowitz

A List of Academic Papers on Bitcoin and Blockchain Technology on Google Docs

bitreserve
Founded by tech entrepreneur Halsey Minor, who founded CNET and backed Salesforce.com.

BlockCypher.com | @BlockCypher
"Like Amazon webservices for blockchains"

Concepts of Cyphers and Digital Signatures
From GnuPG.org.

ANXBTC
A Hong Kong company that can provide you with a debit card for spending your Bitcoin in FIAT currency.

BitcoinTalk.org
Bitcoin Forum.

Bitcoin Knowledge Podcast
Top people in the Bitcoin industry are interviewed by Trace Mayer, Bitcoin expert and venture capitalist.

Xapo
Provides a Bitcoin wallet with the security of a deep cold storage vault.

Credits
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.

Bitstamp
Bitcoin exchange.

Ripple
By establishing a universal financial protocol (the Ripple Transaction Protocol), Ripple stands to break down the walls between financial institutions.

Xstock.io
Digital currency forex platform.

factom.org
Applying Bitcoin technology to business data systems.

Coinsilium | @CoinsiliumGroup
London-based fintech company that is focused on blockchain technology and innovation.

BitWage.com
Transforming payroll using Bitcoin.

Ethereum Project
Decentralised platform for smart contracts. Open Source project.

R3 CEV
Organisation set up by big banks to look at emerging financial technologies.

BitMEX
A trading platform that offers investors access to the global financial markets using Bitcoin and financial derivatives.

Keybase
Maps your identity to your public keys, and vice versa.

dyne.org
A non-profit free software foundry that works on projects to benefit democratic societies and empower communities, and is home to some Bitcoin experts.

Bitcoin Price

Bitcoin price from CoinDesk

Bitcoin Notes

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

Coinbase

Circle

Blockchain

Xapo

 

 

See Also

Blockchain Technology Startups

 




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