PresstechnologyBrief
Bitcoin Optech Newsletter #430
This week’s newsletter summarizes continued discussion about using TCP hole punching to make nodes behind home routers reachable and describes a draft BIP for standardizing the spending policies that co-signers enforce when emulating covenants.
Brief
Bitcoin Optech's 430th newsletter covers two threads. Developer 0xB10C says work has resumed on a written specification and an experimental Bitcoin Core build for TCP hole punching, which would let home nodes behind routers accept connections. Anthony Towns doubts the method helps home users much, arguing it could make honest nodes easier for attackers to reach, and he proposed a message board instead. Luke Carriere posted a draft to standardize the spending policies co-signers enforce when emulating covenants, so wallets could work with different co-signers and oracles. Antoine Riard, speaking for himself, says BIP54 still needs review, testing and documentation, and he sees activation talks possibly starting in the back half of 2027.
Why it matters: The outcome could shape how home nodes connect to the network and whether wallets can work across different covenant-emulating co-signer designs.
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