Pieter Wuille provides an overview of Bitcoin script evaluation in pseudocode including the conditions for additional rules for both BIP16 P2SH and BIP141 segwit. Pieter Wuille describes a variety of nuanced considerations and incentives surrounding transaction propagation on the network concluding that no type of unconfirmed transaction can be trusted and users should wait for confirmations. ● Fidelity bonds for LN routing: Gleb Naumenko and Antoine Riard posted a to the Lightning-Dev mailing list to use stake certificates (another name for fidelity bonds) to prevent a type of channel jamming attack first described in 2015. These are attacks where a malicious user sends a payment to themselves or a confederate through a series of channels and then delays either accepting or rejecting the payment. Other companies, people, and projects are building all kinds of new financial and information infrastructure on top of Bitcoin. These filters allow a client to determine whether or a not a block probably contains a transaction that affects their wallet, similar to BIP37 bloom filters but much more efficiently for the server (as they don’t need to rescan old blocks) and with additional privacy for the client as they don’t directly give the server any information about what transactions they’re interested in
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Olaoluwa Osuntokun confirmed that the btcd full node implements BIP125 as specified, meaning it does allow child transactions to be replaced based on inherited signaling. 55 provides a similar command using gettxout which works against a pruned node. This allows fee bumping a transaction using CPFP and was added for that reason by a developer working on implementing anchor outputs in the Eclair LN node. ● Bitcoin Core Usage Survey: Bitcoin Core developer Andrew Chow created a survey for users of Bitcoin Core. This week’s newsletter announces a meeting to discuss taproot activation mechanisms, includes a link to a Bitcoin Core usage survey, and includes our regular sections with top questions and answers from the Bitcoin Stack Exchange, a list of releases and release candidatesscriptdescriptions of notable changes to popular Bitcoin infrastructure software. Also included are our regular sections describing updates to services and client software, new releases and release candidates, and notable changes to popular Bitcoin infrastructure softw
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Also included are our regular sections with releases, release candidates, and recent code changes in popular Bitcoin infrastructure software. Halseth’s PR attempts to mitigate this by not requesting feerate increases above 10 sat/vbyte, keeping HTLC fees low so that the fees from several HTLCs are less likely to exceed reserves. You also need to make sure that it offers the features you want, such as low fees or fast transfers. 115, youtu.be a recent update to the LN specification that has not yet been widely deployed makes it possible for an attacker to steal a portion of the bitcoins allocated to paying onchain fees for LN payments (HTLCs). ● HWI 1.2.1 is a maintenance release that provides compatibility with a recent version of Ledger’s firmware and improves compatibility with the BitBox02. ● Bitcoin Core 0.20.0rc2 is the most recent release candidate for the next major version of Bitcoin Core. ● Would first-seen prevent a double spend attack? ● BlueWallet v6.1.0 released: BlueWallet’s v6.1.0 release adds Tor support, SLIP39 support, and functionality for using PSBTs with HD watch-only wallets. 5291 improves the way LND ensures that PSBTs for funding transactions only spen
it UTXOs.

LN closing transactions to be ablescripty any segwit script scriptn, including script types that don’t yet have consensus meaning on the network, such as addresses for taproot. 280 prevents displaying invalid Bitcoin addresses in an error dialog, eliminating the ability to display an arbitrary message in an official-looking dialog. The preferred solution to that problem is to simply not include any fees in HTLCs, eliminating the ability to steal fees and making the party who wants to claim the HTLC responsible for paying any necessary fees. Technical issues: Like any other app, Binance app may experience technical glitches or downtime, which can affect the ability to trade or access funds. The option should only be used when necessary, as unconfirmed transactions created by other users can be replaced, which may prevent any child transactions from being confirmed. LN requires segwit UTXOs in order to prevent txid malleability from making refund transactions unspendable. 872 updates BOLT3’s use of BIP69 to specify in more detail the sort order to use for commitment transaction inputs and outputs. As explained in a blog post about the survey, answers will be used to help inform developers about what people use and want from the software.