schmidty on Nostr: Is it the longest weekly optech newsletter? ...
Is it the longest weekly optech newsletter?
quoting note164c…8ty6Bitcoin Optech newsletter #340 is here:
- announces a fixed vulnerability affecting LDK
- summarizes discussion about zero-knowledge gossip for LN channel announcements
- describes the discovery of previous research that can be applied to finding optimal cluster linearizations
- provides an update on the development of the Erlay protocol for reducing transaction relay bandwidth
- looks at tradeoffs between different scripts for implementing LN ephemeral anchors
- relays a proposal for emulating an OP_RAND opcode in a privacy-preserving manner with no consensus changes required
- points to renewed discussion about lowering the minimum transaction feerate
- Optech Newsletter #340 Recap on Riverside
https://bitcoinops.org/en/newsletters/2025/02/07/
Matt Morehouse posted to Delving Bitcoin to announce a vulnerability affecting LDK that he responsibly disclosed and which was fixed in LDK version 0.1.1...
https://bitcoinops.org/en/newsletters/2025/02/07/#channel-force-closure-vulnerability-in-ldk
Johan Halseth posted to Delving Bitcoin with an extension to the proposed 1.75 channel announcement protocol that would allow other nodes to verify that a channel was backed by a funding transaction, preventing multiple cheap DoS attacks, but without revealing which UTXO is the funding transaction—enhancing privacy...
https://bitcoinops.org/en/newsletters/2025/02/07/#zero-knowledge-gossip-for-ln-channel-announcements
Stefan Richter posted to Delving Bitcoin about a research paper from 1989 he found that has a proven algorithm that can be used to efficiently find the highest-feerate subset of a group of transactions that will be topologically valid if the subset is included in a block...
https://bitcoinops.org/en/newsletters/2025/02/07/#discovery-of-previous-research-for-finding-optimal-cluster-linearization
Sergi Delgado made several posts to Delving Bitcoin about his work over the past year implementing Erlay for Bitcoin Core...
https://bitcoinops.org/en/newsletters/2025/02/07/#erlay-update
Bastien Teinturier posted to Delving Bitcoin to ask for opinions about what ephemeral anchor script should be used as one of the outputs to TRUC-based LN commitment transactions as a replacement for existing anchor outputs...
https://bitcoinops.org/en/newsletters/2025/02/07/#tradeoffs-in-ln-ephemeral-anchor-scripts
Oleksandr Kurbatov posted to Delving Bitcoin about an interactive protocol that allows two parties to make a contract that will pay out in a way that neither can predict, which is functionally equivalent to randomly...
https://bitcoinops.org/en/newsletters/2025/02/07/#emulating-op-rand
Greg Tonoski posted to the Bitcoin-Dev mailing list about lowering the default minimum transaction relay feerate...
https://bitcoinops.org/en/newsletters/2025/02/07/#discussion-about-lowering-the-minimum-transaction-relay-feerate
Antoine Poinsot made several posts to the Delving Bitcoin thread about the consensus cleanup soft fork suggesting parameter changes...
https://bitcoinops.org/en/newsletters/2025/02/07/#updates-to-cleanup-soft-fork-proposal
Bob McElrath posted to Delving Bitcoin requesting developers working on covenant designs to consider how their favorite proposal, or a new proposal, could assist in the creation of an efficient decentralized mining pool...
https://bitcoinops.org/en/newsletters/2025/02/07/#request-for-a-covenant-design-supporting-braidpool
A thread from April 2024 received renewed attention this past month. Previously, Bob McElrath posted about having miners commit to the transactions in their mempool and then only allowing them to include transactions in their blocks that were deterministically selected from previous commitments...
https://bitcoinops.org/en/newsletters/2025/02/07/#deterministic-transaction-selection-from-a-committed-mempool
Developer Zawy posted to Delving Bitcoin about a mining difficulty adjustment algorithm (DAA) for a directed acyclic graph (DAG) type blockchain...
https://bitcoinops.org/en/newsletters/2025/02/07/#fast-difficulty-adjustment-algorithm-for-a-dag-blockchain
Difficulty adjustment algorithms
Difficulty adjustment algorithms (DAAs) are the methods by which mining difficulty is regulated, which affects the average time between blocks, the total amount of block space, and the rate of distribution of new bitcoins (the block subsidy)...
https://bitcoinops.org/en/topics/difficulty-adjustment-algorithms/
Bitcoin Optech will host an audio recap discussion of this newsletter with special guests Matt Morehouse, Bastien Teinturier, Bob McElrath, and Antoine Poinsot on Riverside.fm Tuesday at 15:30 UTC. Join us to discuss or ask questions!
https://riverside.fm/studio/bitcoin-optech