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Christopher Allen (@ChristopherA@mastodon.social)

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]

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#BlockchainCommons

@BlockchainComns

Jan 3, 2022

Gordian Seed Tool 1.3 was released over the holidays, with new support for Bitcoin PSBT signing (both our airgapped QR & legacy). We’ve also added a new macOS version to our existing iOS release, so you can now protect seeds on the device of your choice. apps.apple.com/us/app/gordian

6:14 PM · Jan 3, 2022

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Christopher Allen (@ChristopherA@mastodon.social)

@ChristopherA

Jan 3, 2022

Replying to

@ChristopherA

One of the most exciting new features is the ability to sign PSBTs using your stored seeds. [2/9]

Christopher Allen (@ChristopherA@mastodon.social)

@ChristopherA

Jan 3, 2022

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]

github.com

GitHub - BlockchainCommons/Gordian: An entire architecture focused on user agency and security.

An entire architecture focused on user agency and security. - GitHub - BlockchainCommons/Gordian: An entire architecture focused on user agency and security.

Christopher Allen (@ChristopherA@mastodon.social)

@ChristopherA

Jan 3, 2022

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]

Christopher Allen (@ChristopherA@mastodon.social)

@ChristopherA

Jan 3, 2022

We recently documented an example of how to do so with

@SparrowWallet

. [5/9]

github.com

GordianSeedTool-iOS/Integration.md at master · BlockchainCommons/GordianSeedTool-iOS

Cryptographic Seed Manager for iOS. Contribute to BlockchainCommons/GordianSeedTool-iOS development by creating an account on GitHub.

Christopher Allen (@ChristopherA@mastodon.social)

@ChristopherA

Jan 3, 2022

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].

Christopher Allen (@ChristopherA@mastodon.social)

@ChristopherA

Jan 3, 2022

Seed Tool displays the details of the PSBT, asks for your permission, signs, and then sends it back in the same way. [6/9]

Christopher Allen (@ChristopherA@mastodon.social)

@ChristopherA

Jan 3, 2022

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]

github.com

Research/bcr-2021-001-request.md at master · BlockchainCommons/Research

Blockchain Commons Research papers. Contribute to BlockchainCommons/Research development by creating an account on GitHub.

Christopher Allen (@ChristopherA@mastodon.social)

@ChristopherA

Jan 3, 2022

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]

github.com

Releases · BlockchainCommons/GordianSeedTool-iOS

Cryptographic Seed Manager for iOS. Contribute to BlockchainCommons/GordianSeedTool-iOS development by creating an account on GitHub.

Christopher Allen (@ChristopherA@mastodon.social)

@ChristopherA

Jan 3, 2022

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]

github.com

Sponsor @BlockchainCommons on GitHub Sponsors

Blockchain Commons is a "not-for-profit" social benefit corporation committed to open source , advocating for the creation of open, interoperable, secure & compassionate digital infra...