* [bitcoindev] [BIP Draft] Signing message encoding
@ 2026-11-12 8:50 'pyth' via Bitcoin Development Mailing List
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From: 'pyth' via Bitcoin Development Mailing List @ 2026-11-12 8:50 UTC (permalink / raw)
To: bitcoindev
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Hi all,
A few months ago I started a thread on delvingbitcoin about the
payloads a wallet and an air-gapped signing device exchange over QR
codes in a miniscript context: getting xpubs, registering descriptors,
verifying addresses and signing PSBTs.
Since then the spec has grown into a draft BIP. Nothing in its messages
is specific to QR codes, so it now targets any external signer,
whatever carries the bytes (QR, USB, NFC, a file, etc.). It covers
descriptors and miniscript, BIP-388 wallet policies, MuSig2 (BIP-373)
and silent payment sends (BIP-375).
I would like to share the draft in order to collect feedback, and
reviews.
Draft BIP: https://github.com/bitcoin/bips/pull/2353
Delving post:
https://delvingbitcoin.org/t/qr-based-signing-flow-payloads-in-miniscript-context/2464
Any thoughts or suggestions are welcome.
Thanks,
Pyth
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