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Christopher Allen
@ChristopherA
The newest version of Gordian Seed Tool, 1.3, is out, and you can now run it on both your Mac or your iOS device. It is also on sale for Bitcoin's 13th anniversary! [1/9] https://twitter.com/BlockchainComns/status/1478063575428001793
1/3/2022, 10:14:47 AM
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linkChristopher Allen
@ChristopherA
One of the most exciting new features is the ability to sign PSBTs using your stored seeds. [2/9]
1/3/2022, 10:14:49 AM
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linkChristopher Allen
@ChristopherA
Gordian Seed Tool is built on the Gordian Principle of resilience. It shows you how to keep your crypto-seeds safe: by storing them on a closely held device. [3/9] https://github.com/BlockchainCommons/Gordian#gordian-principles
1/3/2022, 10:14:49 AM
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@ChristopherA
But usability is also very important: you have to be able to use your seeds! That’s what Gordian Seed Tool 1.3 supports: PSBT signing with the seed never leaving your device. [4/9]
1/3/2022, 10:14:50 AM
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linkChristopher Allen
@ChristopherA
We recently documented an example of how to do so with @SparrowWallet. [5/9] https://github.com/BlockchainCommons/GordianSeedTool-iOS/blob/master/Docs/Integration.md#using-sparrow-as-a-transaction-coordinator
1/3/2022, 10:14:50 AM
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linkChristopher Allen
@ChristopherA
You let Sparrow act as a Transaction Coordinator by sending it a Cosigner Public Key. Then, when Sparrow wants to produce a transaction, it creates a PSBT that is sent as a QR Code to Seed Tool for signing [5/9].
1/3/2022, 10:14:51 AM
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linkChristopher Allen
@ChristopherA
Seed Tool displays the details of the PSBT, asks for your permission, signs, and then sends it back in the same way. [6/9]
1/3/2022, 10:14:52 AM
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linkChristopher Allen
@ChristopherA
There are two ways to conduct this exchange. Sparrow currently uses the older method of exchanging crypto-psbt URs, while we expect newer releases will use our request/response methodology. [7/9] https://github.com/BlockchainCommons/Research/blob/master/papers/bcr-2021-001-request.md
1/3/2022, 10:14:52 AM
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linkChristopher Allen
@ChristopherA
There’s lots more in Gordian Seed Tool 1.3 including improved camera access, output descriptors, more readable QRs, and a number of smaller bug fixes and enhancements. Take a look at our release notes. [8/9] https://github.com/BlockchainCommons/GordianSeedTool-iOS/releases
1/3/2022, 10:14:53 AM
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Retweets: 1
linkChristopher Allen
@ChristopherA
The monthly patronage from our @BlockchainComns Sponsors (via GitHub) makes this kind of app possible, as well as our broader efforts for wallet interoperability in the Bitcoin ecosystem with specifications & reference code. Support us today! [9/9] https://github.com/sponsors/BlockchainCommons
1/3/2022, 10:14:53 AM
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