● Adding instead of concatenating hashes in Merkle trees Pieter Wuille breaks down a variety of issues to consider regarding the idea of combining hashes in a merkle tree using an operation such as addition instead of the concatenation that Bitcoin currently uses. Pieter Wuille defines 4 taproot keypath spend options, outlines why BIP341 recommends the "noscript" option, and notes scenarios where other options might be preferred. Miniscript support in Output Descriptors is a PR authored by Antoine Poinsot and Pieter Wuille to introduce watch-only support for Miniscript in descriptors. It adds for invoice metadata which can be used by other programs (and potentially future versions of LND) for stateless invoices and adds support to the internal wallet for receiving and spending bitcoins to P2TR keyspend outputs, along with experimental MuSig2 support. ● LND 0.15.0-beta is a release for the next major version of this popular LN node. Peers are authorized using runes, which is a custom CLN protocol based on a simplified version of macaroons. User andrewz asks why assigned BIP numbers BIP40 for Stratum wire protocol and BIP41 for Stratum mining protocol have no content. Although Commando is now built into CLN, it’s only operable if a user creates rune authentication tokens.

16373 causes the bumpfee RPC used for Replace-by-Fee fee bumping to return a Partially Signed Bitcoin Transaction (PSBT) when the user attempts to fee bump a transaction using a wallet with disabled private keys. Wallets require you to use or download a fairly large blockchain file - about 6GB - so downloading and updating a local wallet may be a non-starter. Developer Peter Gray noted that ColdCard wallets already create signatures in this way and developer Craig Raw said Sparrow Wallet that wallet is able to validate them in addition to also following the BIP137 validation rules and a slightly different set of rules implemented in Electrum. The feature is only enabled after the wallet observes the transaction remaining unconfirmed for four hours. For more than four years, youtu.be Mt. Gox creditors have been unsure if and when they could ever expect refunds - or if they would receive paper money or Bitcoins back - even as the value of their recovered assets soared to more than $4 billion when the Bitcoin price peaked last year. Where email is a protocol for sending messages over the internet, Bitcoin is a protocol for sending money over the internet.

1269 assigns BIP326 to a recommendation that taproot transactions set an nSequence value even when it’s not needed for a contract protocol in order to improve privacy when BIP68 consensus-enforced nSequence values are needed. BIP326 also describes how the use of nSequence can provide an alternative to anti fee sniping protection currently enabled through the transaction locktime field. This isn’t expected to be directly useful, but creates a tool the libbitcoinkernel project will leverage to produce a library other projects can use to validate blocks and transactions using the exact same code Bitcoin Core uses. ● What is the difference between blocksonly and block-relay-only in Bitcoin Core? ● Proof of micro-burn: several developers discussed use cases and designs of onchain transactions that destroy bitcoins ("burn" bitcoins) in small increments as a proof of resource consumption. Several solutions were discussed using merkle trees, although one respondent suggested that the small amounts involved suggest that having participants trust (or partially trust) a centralized third party may be a reasonable way to avoid unnecessary complexity. C-Lightning will relay per node per day from one to two. 25351 ensures that after an import of addresses, keys, or descriptors to a wallet, the subsequent rescan will not only scan the blockchain but also evaluate whether transactions in the mempool are relevant to the wallet.

A previous proposal, BIP322, to provide fully generic message signing that could work with any script has not yet been merged into Bitcoin Core or added to any other popular wallet of which we’re aware. Faster rescans for Bitcoin Core’s built-in wallet. Murch and glozow explain the different mempool transaction indexes (txid, wtxid, time in mempool, ancestor feerate, and descendant feerate) in Bitcoin Core as well as their usages. ● What is the purpose of indexing the mempool by these five criteria? ● Mining stale low-difficulty blocks as a DoS attack Andrew Chow explains that assumevalid and more recently nMinimumChainWork help filter out low-difficulty chain attacks. There are a number of mining options for multiple platforms although OSX users may find themselves in a bit of a pickle. Mining is also the mechanism used to introduce Bitcoins into the system: Miners are paid any transaction fees as well as a "subsidy" of newly created coins. ● Two-transaction cross chain atomic swap or same-chain coinswap: Ruben Somsen posted to the Bitcoin-Dev mailing list and created a video describing a procedure for a trustless exchange of coins using only two transactions, named Succinct Atomic Swaps (SAS). No significant news this week was found on the Bitcoin-Dev or Lightning-Dev mailing lists.