📬 TLDR: Stay Updated with Bitcoin Development!

• The Bitcoin TLDR Newsletter keeps you informed about key discussions from the bitcoin-dev, lightning-dev, and delving bitcoin mailing lists.
• Subscribe and get our weekly newsletter on what matters in bitcoin.

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🗞️ TLDR Newsletter: Nov 18 - Nov 25

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Consensus Cleanup: Prevent Duplicate Coinbase Transactions

• Antoine Poinsot has launched a discussion on the Consensus Cleanup proposal.
• The proposal aims to prevent duplicate Bitcoin coinbase transactions.
• Feedback from engineers and stakeholders in the mining industry is sought.

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Slashing Covenants

• Slashing covenants offer a novel way to enforce Bitcoin rules, penalizing rule violations with fund slashing.
• They utilize existing Bitcoin scripts and Lamport signatures to prove signature identity without direct comparison.
• While designed for Bitcoin, the protocol could be easier to implement on Ethereum, suggesting broader blockchain applicability.

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🗞️ Active Discussions

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LNhance BIPs and Implementation

• LN-Symmetry in blockchain can be achieved using CTV and CSFS opcodes.
• Tools like IKEY and PC complement these opcodes for LN-Symmetry.
• LNhance is highlighted as the best solution for blockchain data availability issues.

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CHECKSIGFROMSTACK (VERIFY/ADD)

• Discusses removing OP_CHECKSIGFROMSTACKVERIFY from LNhance and CSFS BIP.
• Suggests combining OP_CSFS with OP_VERIFY to streamline the codebase.
• Elimination justified by limited use cases and potential tapscript backporting.

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OP_PAIRCOMMIT for LNhance

• LNhance integrates CTV and CSFS with IKEY for contract efficiency and cooperative closes.
• Tackles challenges like "data availability" and controversies around OP_CAT.
• Future upgrades with OP_CHECKCONTRACTVERIFY or OP_VAULT/RECOVER could improve vault flexibility.

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CTV, APO, CAT Activity on Signet

• A tool was developed to simplify Bitcoin Inquisition transaction analysis.
• Inspired by past investigations; feedback is welcomed for further improvement.

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Updates to Gossip 1.75 Proposal

• Highlights unsigned TLV format in SPV proof as an innovative approach.
• Suggests adding outpoints in signed fields for better support of txindex nodes.
• Collaboration opportunities open with the eclair team.

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Channel Depletion and LN Topology

• Critiques current models as oversimplified for dynamic network operations.
• Highlights the importance of fee management and liquidity modeling.
• Calls for further investigation into network liquidity and topology.

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Multi-Byte Opcodes

• Discusses new OPs, including OP_CHECKSIGADD.
• Reflects on Bitcoin’s adaptability with OP code evolution introduced by Satoshi.
• Showcases Bitcoin’s ability to evolve without disrupting existing functionalities.

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