Bitcoin TLDR

#109

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Summary

Dec 22 - Dec 28, 2025

Our weekly newsletter is focused on keeping you updated on what's new in Bitcoin, and summarizes the bitcoin-dev, lightning-dev and delving bitcoin mailing lists

In recent discussions within the Bitcoin community, Oren introduced a Bitcoin Improvement Proposal (BIP) for a Timelock-Recovery plan following a conversation with Ava Chow at BTC++ Taiwan. The proposal aims to enhance the security and inheritance handling of Bitcoin recovery seeds through pre-signed transactions and a plugin for Electrum, standardizing a JSON format for broader wallet compatibility and application development. This initiative, supported by RITREK.com, marks a significant step towards improving long-term wallet management for both technical and non-technical users (Electrum, RITREK).

Parallel to this, discussions around commit-based approaches for securing digital transactions against quantum threats have gained traction. These approaches prioritize incremental steps towards quantum resistance, such as commit-reveal strategies, over an immediate transition to full quantum-safe signatures. A novel framework, Quantum-Resilient Modular Verification Layer (QRMVL), has been proposed to address scalability and verification challenges, advocating for a soft-fork-compatible pathway to quantum resilience. This framework seeks community feedback to refine its approach, with resources available for review and contribution (QRMVL Whitepaper, GitHub).

Additionally, a new Layer 3 protocol proposal addresses trust and custody issues in Bitcoin transactions, promoting custodial Lightning networks as a solution to enhance transaction speed, reduce costs, and maintain decentralization. This protocol introduces auditable cryptographic ledgers and a recovery mechanism that diverges from unilateral exit strategies, aiming to establish a network of bonded custodians on the Lightning network to improve scalability and usability without sacrificing trustlessness. The author seeks feedback on this protocol, with a detailed whitepaper available for those interested in exploring the technical aspects further (GitHub Repository).

Active Discussions

Unbreaking testnet4

33 replies

By Saint Wenhao

Involving Garlo Nicon, Sjors Provoost+9 others

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Original post on March 18, 2025 14:29 UTC

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Last reply on July 5, 2025 04:31 UTC

bitcoin-dev

  • Saint Wenhao discusses improvements in Bitcoin's Signet and Testnet mining environments.

  • A shift towards decentralized control of coinbase transactions in Signet is proposed.

  • The conversation anticipates a flag day hard fork and explores Merged Mining for efficiency.

Hash-Based Signatures for Bitcoin's Post-Quantum Future

15 replies

By david torrealba

Involving Mikhail Kudinov, Jonas Nick+5 others

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Original post on December 8, 2025 20:28 UTC

cyclic icon

Last reply on December 20, 2025 01:14 UTC

bitcoin-dev

  • The Cellframe project explores PQ signature impacts on performance, focusing on low-power devices.

  • It provides data on RAM usage and verification times for different PQ algorithms on ARM architectures.

  • Sharing benchmarks could help with Bitcoin's transition to Post-Quantum cryptography.

Re: The Cat, BIP draft discussion.

14 replies

By Greg Maxwell

Involving Jonathan Voss, Ataraxia 009+7 others

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Original post on December 11, 2025 20:54 UTC

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Last reply on December 24, 2025 17:19 UTC

bitcoin-dev

  • The critique questions the 'dust threshold' in Bitcoin, calling it arbitrary and misinformed.

  • It highlights flaws in the proposal, including ignoring technological solutions like utxotree.

  • A one-year ban for proponents of such changes is suggested to protect Bitcoin's integrity.

[BIP Proposal] Add sp() output descriptor format for BIP352

7 replies

By Sebastian Falbesoner

Involving Craig Raw, Oghenovo Usiwoma+1 other

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Original post on December 4, 2025 06:45 UTC

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Last reply on December 22, 2025 20:47 UTC

bitcoin-dev

  • A critical debate exists on the scalability of label scanning in SP wallets.

  • BIP-352 proposes an efficient scanning method not limited by label quantity.

  • Future full-node wallets could vastly improve using the BIP method, despite potential light client limitations.

Draft BIP: DustSweep policy-only UTXO dust compaction

6 replies

By Murch

Involving Defenwycke, defenwycke+1 other

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Original post on December 11, 2025 12:53 UTC

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Last reply on December 22, 2025 19:33 UTC

bitcoin-dev

  • The critique addressed the proposal's 0.1 satoshis per virtual byte fee rate for different Bitcoin inputs.

  • It highlighted how increased fee rates could make low-value transactions financially illogical for users.

  • The discussion underscored the importance of aligning incentives for UTXO consolidation without disrupting current dynamics.

P2share: how to turn any network (or testnet!) into a bitcoin miner

24 replies

By coinjoinkillua

Involving VzxPLnHqr, cmp_ancp+3 others

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Original post on November 7, 2025 01:06 UTC

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Last reply on December 28, 2025 05:09 UTC

delvingbitcoin

  • The document outlines Braidpool as an innovative platform enhancing domain-specific processes.

  • Braidpool leverages technological advancements and a deep understanding of user needs.

  • It emphasizes strategic partnerships for development and aims to revolutionize its field.

Bitcoin Embracing MimbleWimble

13 replies

By evd0kim

Involving REDBaron, vazertuche+4 others

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Original post on October 27, 2025 12:04 UTC

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Last reply on December 22, 2025 08:58 UTC

delvingbitcoin

  • Recent developments highlight attention on OFAC transactions within the cryptocurrency community.

  • Miners' ability to censor transactions reaffirms the system's operational integrity and compliance capabilities.

  • The situation underscores the balance between decentralization and regulation, ensuring transaction integrity.

Major BIP 360 Update

3 replies

By sipa

Involving cryptoquick, josh+1 other

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Original post on December 19, 2025 20:46 UTC

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Last reply on December 22, 2025 14:07 UTC

delvingbitcoin

  • The term initially thought to describe a `scriptPubKey` actually relates to a Merkle root.

  • It inaccurately suggests being a script hash and doesn't only apply to tapscript.

  • A term like "pay to script tree merkle root" would more accurately describe the concept.

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