Note that a number of wallet companies are now supporting the UR encoded version of PSBTs, allowing for better QR & Airgap solutions, and also leverage CBOR which is an IETF standard.
We have a community of Airgap wallet developers at https://github.com/BlockchainCommons/Airgapped-Wallet-Community …and libraries at https://github.com/BlockchainCommons/crypto-commons#urs We’d love for you to register UR as well, maybe as bitcoin/psbt+ur Can you bring this up in our community for further discussion? https://github.com/BlockchainCommons/Airgapped-Wallet-Community/discussions Thanks! — Christopher Allen [via iPhone] On Tue, Aug 31, 2021 at 11:41 AM Peter D. Gray via bitcoin-dev < bitcoin-dev@lists.linuxfoundation.org> wrote: > Hi list! > > I am proposing to register the following MIME (RFC 2046) media types with > the IANA: > > > bitcoin/psbt > > - aka. a BIP-174 file, in binary > - does not make any claims about signed/unsigned status; lets leave > that to the file > > bitcoin/txn > > - aka. wire-ready fully-signed transaction in binary > > bitcoin/uri > > - aka [BIP-21]( > https://github.com/bitcoin/bips/blob/master/bip-0021.mediawiki) > - could be just a bare bech32 or base58 payment address > - but can also encode amount, comments in URL args > - potentially interesting as a response to 402 - Payment required > > > Other thoughts > > - some mime-types are proposed in BIP-71 but those are unrelated to above, > and never > seem to have been registered > > - for those who like to encode their binary as base64 or hex, that can be > indicated > as "encoding=hex" or "encoding=base64" in the optional parameters, just > like > "text/plain; encoding=utf-8" does. However, the default must be binary. > > - although the above are useful for web servers, they are also useful > elsewhere and I > intend to use them in NFC (NDEF records) where a shorter length is > critical. > > - I have no idea how easily IANA will accept these proposals. > > - current approved mime types: > https://www.iana.org/assignments/media-types/media-types.xhtml > > Thoughts? > > --- > @DocHEX || Coinkite || PGP: A3A31BAD 5A2A5B10 > > _______________________________________________ > bitcoin-dev mailing list > bitcoin-dev@lists.linuxfoundation.org > https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev >
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