Bitcoin TLDR

#127

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Summary

Jul 6 - Jul 12, 2026

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

Junhyuk Lee's research paper examines the economic conditions under which Bitcoin miners might deviate from honest behavior as block rewards diminish, identifying a critical threshold that could incentivize such deviations. The paper proposes several mitigation strategies to stabilize miner incentives and maintain network integrity, such as base fees and adaptive block sizing, which are critical in a fee-only regime. These findings and proposed solutions are discussed in detail, with further insights available at arxiv and discussions on Research on Bitcoin Post-Block Rewards.

The release of Bitcoin Core version 31.1 introduces significant improvements, including bug fixes, performance enhancements, and better privacy features. Users upgrading to this version should follow specific installation procedures for different operating systems to ensure a smooth transition. The release, detailed at Bitcoin Core's official website, highlights the community's ongoing efforts to enhance the software's functionality and security.

A new Bitcoin Improvement Proposal (BIP) by Jonas Nick, Tim Ruffing, and Yannick Seurin introduces a method for full-aggregation of BIP 340 signatures, aiming to increase transaction efficiency by reducing sizes. This proposal, particularly beneficial for Cross-Input Signature Aggregation (CISA), is open for community feedback and further discussion at Fabian's BIPs repo fork. The development reflects a continuous effort to advance cryptographic practices within Bitcoin’s framework, fostering potential improvements in security and operational efficiency.

Active Discussions

DahLIAS: Discrete Logarithm-Based Interactive Aggregate Signatures

14 replies

By waxwing/ AdamISZ

Involving Jonas Nick, Tim Ruffing

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Original post on April 17, 2025 16:27 UTC

cyclic icon

Last reply on July 8, 2026 19:12 UTC

bitcoin-dev

  • The discussions emphasize the foundational role of AOMDL under ROM in Bitcoin's security claims.

  • Nonce generation in BIP327 involves complexities and potential security risks with deterministic nonces.

  • Flexibility in statelessness for signers could improve implementation without harming security.

[BIP Draft] Segregated Data: a prunable, script-isolated block region for data carriage

35 replies

By murch

Involving MrHash, AntoineP+3 others

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Original post on June 23, 2026 16:40 UTC

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Last reply on July 10, 2026 18:32 UTC

delvingbitcoin

  • The majority of Bitcoin node operators retain the entire blockchain to support new nodes.

  • Some operators might prefer selectively pruning non-essential data while maintaining blockchain consensus.

  • The discussed proposal for changing Bitcoin data handling lacks significant community support.

Public key recovery for EC leaves in P2MR (BIP-360)

31 replies

By conduition

Involving sipa, ajtowns+4 others

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Original post on June 6, 2026 22:00 UTC

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Last reply on July 13, 2026 08:12 UTC

delvingbitcoin

  • P2TRH integrates into P2MR, enhancing flexibility in cryptographic applications.

  • The integration supports various signatures and strong cryptographic frameworks.

  • This strategic merger could lead to advancements in cryptography's efficiency and security.

State of the transaction privacy work in Bitcoin

28 replies

By nkaretnikov

Involving Kruw, craigraw+4 others

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Original post on June 18, 2026 21:27 UTC

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Last reply on July 11, 2026 21:01 UTC

delvingbitcoin

  • Fabian submitted a comprehensive draft for Bitcoin improvements on the developers' group.

  • His research on Crypto Improvement Security Audit is detailed in a report by the Human Rights Foundation.

  • These contributions are crucial for enhancing Bitcoin security and operational functionality.

Addressing the Diminishing Block Subsidy

23 replies

By show1225

Involving ajtowns, cmp_ancp+9 others

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Original post on June 23, 2026 15:33 UTC

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Last reply on July 11, 2026 21:11 UTC

delvingbitcoin

  • The proposed dynamic block size could impact blockchain efficiency based on transaction types and fee levels.

  • High fees could reduce block size and network throughput, potentially decreasing overall network efficiency.

  • The adoption of post-quantum signatures and scaling technologies depends on consistent transaction demand.

Scaling Noncustodial Mining Payouts with CTV

18 replies

By djh58

Involving vnprc, AntoineP+6 others

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Original post on June 4, 2025 20:12 UTC

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Last reply on July 8, 2026 18:37 UTC

delvingbitcoin

  • A recent blockchain update incorporates CheckTemplateVerify, sparking discussions on fee selection.

  • A dedicated forum thread explores optimizing fee strategies for CTV-based mining pool fanouts.

  • This conversation is crucial for developers and stakeholders in cryptocurrency mining.

Input-triggered transaction expiry

12 replies

By josh

Involving instagibbs, ajtowns+1 other

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Original post on June 29, 2026 01:13 UTC

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Last reply on July 12, 2026 02:25 UTC

delvingbitcoin

  • The email explores implementing expiry mechanisms in blockchain, especially Bitcoin.

  • It suggests `nLockTime` for intrinsic expiry integration, enhancing transaction simplicity.

  • The method preserves validation frameworks and debates on consensus-enforced delay lengths.

zkPoH: Zero-Knowledge Proof-of-Hodl

4 replies

By treeforest

Involving fabohax, AdamISZ+1 other

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Original post on July 9, 2026 14:15 UTC

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Last reply on July 12, 2026 20:56 UTC

delvingbitcoin

  • Recent zk technology developments in Bitcoin have been impressively notable.

  • Growing attention on zk innovations highlights their impact on Bitcoin's capabilities.

  • This progress points to enhanced privacy and efficiency in blockchain technology.

Expiring HTLCs without free relay

3 replies

By josh

Involving instagibbs

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Original post on June 28, 2026 01:47 UTC

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Last reply on July 12, 2026 12:11 UTC

delvingbitcoin

  • The email proposes introducing relay-safe expiry to counter time-sensitive attacks in blockchain transactions.

  • It discusses reconsidering the 100 block delay in `OP_EXPIRE` based on @ajtowns' suggestions.

  • Plans for further research on blockchain transaction improvements were announced for a future blog post.

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