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Re: The Cat, BIP draft discussion.

17 replies

By Bitcoin Mechanic

Involving Greg Maxwell, Jonathan Voss+11 others

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Original post on December 11, 2025 20:54 UTC

cyclic icon

Last reply on January 22, 2026 01:14 UTC

bitcoin-dev

  • The debate centers on using "The Cat" to delete spammy UTXOs to save blockchain space.

  • Critics argue this method contradicts Bitcoin's decentralized ethos, despite potential efficiency gains.

  • The proposal requires careful implementation and consensus due to ethical concerns over digital property rights.

Falcon Post-Quantum Signature Scheme Proposal

9 replies

By Giulio Golinelli

Involving waxwing/ AdamISZ, Mikhail Kudinov+2 others

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Original post on January 22, 2026 07:01 UTC

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Last reply on January 26, 2026 15:21 UTC

bitcoin-dev

  • Falcon's integration into Bitcoin Core is showcased for future post-quantum security adaptation.

  • Falcon offers reduced key sizes and improved verification times, enhancing Bitcoin transaction efficiency.

  • The project, signaling potential for Bitcoin's evolution, aligns closely with upcoming FIPS standardization.

Re: Unbreaking testnet4

1 reply

By Angelo

Involving Saint Wenhao

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Original post on January 18, 2026 17:26 UTC

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Last reply on January 19, 2026 08:40 UTC

bitcoin-dev

  • A recent update addressed a testnet4 issue by modifying Bitcoin Core's difficulty rule.

  • Starting from block 149,184, the block interval time is expected to increase significantly.

  • The change, aimed at improving test network functionality, is open for further community feedback.

LN-Symmetry Project Recap

16 replies

By instagibbs

Involving ajtowns, rustyrussell+2 others

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Original post on January 5, 2024 18:03 UTC

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Last reply on January 22, 2026 19:09 UTC

delvingbitcoin

  • The LN-Symmetry Project advanced the eltoo proposal into research-quality software, testing various channel functionalities.

  • It aimed to simplify BOLT specifications, improve fee management, and explored CTV benefits for payment protocols.

  • Contributions include anti-pinning research, development of Ephemeral Anchors, and elaboration on PTLCs compatibility with eltoo channels.

Benchmarking Bitcoin Script Evaluation for the Varops Budget (Great Script Restoration)

15 replies

By Julian

Involving ajtowns, instagibbs+2 others

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Original post on November 7, 2025 15:14 UTC

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Last reply on January 26, 2026 05:31 UTC

delvingbitcoin

  • A new Tapscript leaf version aims to address Bitcoin script execution issues by generalizing the sigops budget.

  • Benchmarking focuses on block-sized scripts to ensure the new varops budget of 20.8 billion compute units is feasible.

  • The community is encouraged to test the GSR prototype and contribute to refining the varops budget via GitHub links.

SHRINCS: 324-byte stateful post-quantum signatures with static backups

13 replies

By jonasnick

Involving conduition, moonsettler

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Original post on December 11, 2025 08:40 UTC

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Last reply on January 27, 2026 06:38 UTC

delvingbitcoin

  • SHRINCS combines stateful hash-based with stateless signatures for efficient, limited use.

  • It employs an "unbalanced" XMSS tree and SPHINCS+ variant, ensuring reliability and efficiency.

  • The scheme transitions seamlessly between stateful and stateless modes, enhancing security.

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