Onwards and Upwards

You just implemented a simplified Bitcoin-like cryptocurrency from scratch. Now’s your chance to experiment with ideas in a codebase you fully understand. For example, you could try making different versions of Minicoin with some of these features:

• Peer discovery
• Proof-of-stake mining
• Account-based transactions
• Multisig transactions
• Payment channels
• Transaction scripting
• Messaging
• Name registration

There are bugs and weaknesses in Minicoin that you can figure out and fix. Check out the latest reference code at … and make a pull request!

Further research links

https://www.sharhon.com/files/bitcoin-0.1.0.tgz

• Bitcoin’s original source code. A Windows program by Satoshi from January, 2009

https://github.com/bitcoin/bitcoin

• Bitcoin’s current source code. See how much it’s grown!

https://bitcointalk.org/index.php?topic=41718.0

• An series of forum threads about the original Bitcoin source code

https://github.com/bitcoin/bitcoin/tree/master/doc

• All kinds of interesting, semi-obscure documentation for Bitcoin developers