Christopher Allen

@ChristopherA

Blockchain Commons @BlockchainComns is proud to announce the v2.0 release of our popular free online course “Learning Bitcoin from the Command Line” [1/15] https://github.com/BlockchainCommons/Learning-Bitcoin-from-the-Command-Line/

10/30/2020, 12:18:03 PM

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Christopher Allen

@ChristopherA

Learning Bitcoin was one of our first projects, launched back in 2017 with support from @Blockstream. The intent of the course was to teach the fundamentals of Bitcoin programming through Bitcoin Core and its RPC-based command-line interface. https://bitcoin.org/en/ [2/15]

10/30/2020, 12:18:03 PM

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Christopher Allen

@ChristopherA

Bitcoin Core is one of the most robust, secure, and safe cryptocurrency interfaces in existence, and so we believe it’s the solid foundation for programming Bitcoin. It also allows you to interact with Bitcoin in a way that teaches the fundamentals. [3/15]

10/30/2020, 12:18:04 PM

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Christopher Allen

@ChristopherA

Our original course taught use of the bitcoin-cli CLI app and some simple Bitcoin scripting. It was very successful, with 100 Watches, 350 Forks, and 1300 Stars on @GitHub. [4/15]

10/30/2020, 12:18:04 PM

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Christopher Allen

@ChristopherA

Our Learning Bitcoin course has helped Bitcoin novices to become Bitcoin developers. Some of Blockchain Commons’ engineers, as well as many interns, got their start with the Learning Bitcoin course. It’s helped people enter open-source projects and gain entry-level jobs. [5/15]

10/30/2020, 12:18:04 PM

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Christopher Allen

@ChristopherA

Bitcoin is still undergoing rapid development, so one of our goals when we began work on v2.0 of the course this year was to update it for Bitcoin 0.20 & 0.20.1: every example in the course has been updated and revised accordingly. https://bitcoin.org/en/release/v0.20.0 [6/15]

10/30/2020, 12:18:04 PM

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Christopher Allen

@ChristopherA

v2.0 of Learning Bitcoin also has been expanded to include a number of new topics. New sections discuss wallet descriptors, SegWit, and how SegWit’s new transaction types interact with Bitcoin Scripts. We’ve also added new chapters to offer more expansive discussions. [7/15]

10/30/2020, 12:18:05 PM

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Christopher Allen

@ChristopherA

A chapter on PSBTs looks at Partially Signed Bitcoin Transactions and how they can be used with Bitcoin Core’s new HWI (Hardware Interface). [8/15] https://github.com/BlockchainCommons/Learning-Bitcoin-from-the-Command-Line/blob/master/07_0_Expanding_Bitcoin_Transactions_PSBTs.md

10/30/2020, 12:18:05 PM

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Christopher Allen

@ChristopherA

Though our focus is on the command-line interface, we also show how to create simple C programs to talk to Bitcoin Core using RPC and ZMQ http://zeromq.org/ libraries.[9/15] https://github.com/BlockchainCommons/Learning-Bitcoin-from-the-Command-Line/blob/master/15_0_Talking_to_Bitcoind.md

10/30/2020, 12:18:05 PM

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Christopher Allen

@ChristopherA

Libwally from @Blockstream is a great library to use with command-line programs, so we have a new chapter about leveraging its wallet and other cryptographic features. [10/15] https://github.com/BlockchainCommons/Learning-Bitcoin-from-the-Command-Line/blob/master/16_0_Programming_with_Libwally.md

10/30/2020, 12:18:05 PM

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Christopher Allen

@ChristopherA

We also touch upon RPC programming in Go, Java, NodeJS, Python, Rust, and Swift. [11/15] https://github.com/BlockchainCommons/Learning-Bitcoin-from-the-Command-Line/blob/master/17_0_Talking_to_Bitcoind_Other.md

10/30/2020, 12:18:06 PM

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