Inspired by #7DaysOfBitcoin, I& #39;m embarking on a #30DaysOfBitcoin challenge to learn, document, build, and deep-dive into #Bitcoin https://abs.twimg.com/hashflags... draggable="false" alt=""> over the summers.

Bookmark this thread for daily updates. https://abs.twimg.com/emoji/v2/... draggable="false" alt="🧵" title="Thread" aria-label="Emoji: Thread">
Day 1: Finished reviewing a btcd pull request on zero-alloc optimization of txscript.

Early results on testnet3 show a speedup of 20% in full sync! https://abs.twimg.com/emoji/v2/... draggable="false" alt="🚄" title="Hochgeschwindigkeitszug" aria-label="Emoji: Hochgeschwindigkeitszug">

https://github.com/btcsuite/btcd/pull/1684

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txscript: backport tokenizer from dcrd by cfromknecht · Pull Request #1684 · btcsuite/btcd

Dusting off this old branch... IIRC it should be mostly complete, there were a few edge cases around multisig parsing that I wanted to revisit. Happy to finish it up if people are interested in it....

https://github.com/btcsuite/btcd/pull/1684
Day 2: Read about the wire message type for advertising versions, used for negotiating p2p connections.

Implemented MsgVersion with its decoder/encoder in #Python.

https://anirudha.co/30daysofbitcoin/msgversion.txt

https://anirudha.co/30daysofb... href="https://twtext.com//hashtag/Bitcoin"> #Bitcoin https://abs.twimg.com/hashflags... draggable="false" alt=""> #30DaysOfBitcoin #100DaysOfCode
Day 3: Drafted release notes for the upcoming btcd v0.22.0 release, and triaged some issues.

https://github.com/btcsuite/btcd/issues/1706

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Release planning for 0.22.0-beta · Issue #1706 · btcsuite/btcd

Please find a draft of the release notes for the upcoming 0.22.0-beta version below. Although there are a couple of issues remaining in the milestone, I don't think it's necessary t...

https://github.com/btcsuite/btcd/issues/1706
Day 4: Implemented a Merkle root validator in #typescript. https://abs.twimg.com/emoji/v2/... draggable="false" alt="🌲" title="Immergrüner Baum" aria-label="Emoji: Immergrüner Baum">

Included in block headers, the Merkle root is a cryptographic proof of which transactions are in the block, and which order they are in.

Code: https://anirudha.co/30daysofbitcoin/merkletrees.txt

https://anirudha.co/30daysofb... href="https://twtext.com//hashtag/Bitcoin"> #Bitcoin https://abs.twimg.com/hashflags... draggable="false" alt=""> #30DaysOfBitcoin #100DaysOfCode
Day 4: Implemented a Merkle root validator in #typescript. https://abs.twimg.com/emoji/v2/... draggable=Included in block headers, the Merkle root is a cryptographic proof of which transactions are in the block, and which order they are in.Code: https://anirudha.co/30daysofb... href="https://twtext.com//hashtag/Bitcoin"> #Bitcoin https://abs.twimg.com/hashflags... draggable="false" alt=""> #30DaysOfBitcoin #100DaysOfCode" title="Day 4: Implemented a Merkle root validator in #typescript. https://abs.twimg.com/emoji/v2/... draggable="false" alt="🌲" title="Immergrüner Baum" aria-label="Emoji: Immergrüner Baum">Included in block headers, the Merkle root is a cryptographic proof of which transactions are in the block, and which order they are in.Code: https://anirudha.co/30daysofb... href="https://twtext.com//hashtag/Bitcoin"> #Bitcoin https://abs.twimg.com/hashflags... draggable="false" alt=""> #30DaysOfBitcoin #100DaysOfCode" class="img-responsive" style="max-width:100%;"/>
Day 5: Slow reading of BIP 0340 - Schnorr signatures for secp256k1. https://abs.twimg.com/emoji/v2/... draggable="false" alt="➰" title="Geringelte Schleife" aria-label="Emoji: Geringelte Schleife">

This looks like a vast improvement over ECDSA. I wonder what happens to OP_CHECKSIG in future.

https://github.com/bitcoin/bips/blob/master/bip-0340.mediawiki

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bitcoin/bips

Bitcoin Improvement Proposals. Contribute to bitcoin/bips development by creating an account on GitHub.

https://github.com/bitcoin/bips/blob/master/bip-0340.mediawiki
Day 6-7: Attending the Texas A&M Bitcoin Conference.

https://mays.tamu.edu/bitcoin 

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Texas A&M Bitcoin Conference

https://mays.tamu.edu/bitcoin
Day 8: Read the first two chapters of "The price of tomorrow" by @JeffBooth.

My world view is shifting rapidly. This is the Economics 101 we all deserved, but never had.

#30DaysOfBitcoin
Day 9: Generation and verification of Merkle proofs in #typescript. https://abs.twimg.com/emoji/v2/... draggable="false" alt="🌲" title="Immergrüner Baum" aria-label="Emoji: Immergrüner Baum">

This method was outlined by Satoshi under "Simplified Payment Verification" in the Bitcoin paper.

Code: https://anirudha.co/30daysofbitcoin/merkleproof.txt

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Day 10: Probably the most important update in this thread.

The mempool has cleared, and off goes my little donation to the "India Covid-Crypto Relief Fund".

https://twitter.com/balajis/status/1386321253682741253?s=20

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