Bitcoin Optech newsletter #210 is here:

- describes a proposed BIP for creating signed messages for non-legacy addresses
- summarizes a discussion about provably burning small amounts of bitcoin for denial of service protection
- summarizes popular questions and answers from Bitcoin Stack Exchange
- Optech Newsletter #210 Recap on Twitter Spaces

bitcoinops.org/en/newsletters/

Bitcoin Core and many other wallets have long included support for signing and verifying arbitrary messages when the key used to sign them corresponds to a P2PKH address. Bitcoin Core doesn’t support signing or verifying arbitrary messages for any other address type, including addresses covering single-sig P2SH-P2WPKH, native P2WPKH, and P2TR outputs...

bitcoinops.org/en/newsletters/

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Several developers discussed use cases and designs of onchain transactions that destroy bitcoins (“burn” bitcoins) in small increments as a proof of resource consumption...

bitcoinops.org/en/newsletters/

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Selected Q&A from Bitcoin Stack Exchange:

- Why do invalid signatures in OP_CHECKSIGADD not push to the stack?
- What are packages in Bitcoin Core and what is their use case?
- How much blockspace would it take to spend the complete UTXO set?
- Does an uneconomical output need to be kept in the UTXO set?
- Is there code in libsecp256k1 that should be moved to the Bitcoin Core codebase?
- Mining stale low-difficulty blocks as a DoS attack

bitcoinops.org/en/newsletters/

Bitcoin Optech will be hosting an audio recap discussion of this newsletter on Twitter Spaces at 15:00 UTC. Join us to discuss or ask questions!

twitter.com/bitcoinoptech/stat

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