Gordian Developer Meeting — July 2023

<img src="https://www.Blockchaincommons.com/images/bcc-card.jpg" width=1024> Blockchain Commons #Gordian Meeting 2023-07-05 --- ### <img src="https://i.imgur.com/QyDl5nK.png" width="192" height="192"> What is Blockchain Commons? * We are a community interested in self-sovereign control of digital assets. * We bring together stakeholders to collaboratively develop interoperable infrastructure. * We design decentralized solutions where everyone wins. * We are a neutral "not-for-profit" that enables people to control their own digital destiny. --- ### Who am I? <img src="https://avatars.githubusercontent.com/ChristopherA?s=195"> Christopher Allen (@ChristopherA) _Principal Architect & Executive Director_ --- ### <img src="https://i.imgur.com/QyDl5nK.png" width=192 height="192"> What are the #Gordian Meetings? - Developers jointly expand & use the Gordian specs. - Open, interoperable, secure, compassionate infrastructure. - Goals for 2023: - dCBOR libraries - Gordian Envelope usage - Collaborative Seed Recovery (CSR) - Collaborative Key Management (CKM) --- ### <img src="https://i.imgur.com/QyDl5nK.png" width=192 height="192"> Last Meeting #### June Developer Meeting (June 6th, 2023) - Shamir Updates & Ledger - From SSKR to CSR - Introducing SeedHammer - Gordian Use Cases for Education & Wellness - Gordian for Rust! --- ### <img src="https://i.imgur.com/QyDl5nK.png" width=192 height="192"> Today's Topics - Return to URs & Animated QRs - UR Experiences (thunderbiscuit) - A LifeHash Use Case (Craig) - IETF 117 Meetings - Self-Sovereign Identity - Gordian SeedTool 1.6 (Wolf) - Standardizing for CSR --- ### <img src="https://i.imgur.com/QyDl5nK.png" width=192 height="192"> Return to URs & Animated QRs - We're working on exciting new stuff like Envelope - But URs continue to be the foundation of our interoperability! - Developer Docs: https://tinyurl.com/ur-intro - New PSBT Doc: https://tinyurl.com/ur-psbt - And then there's Animated QRs ... --- <img src="https://i.ytimg.com/vi/HsFF5HPKQIk/mqdefault.jpg" style="border: solid white 1px;"> - Animated QRs Video: - https://tinyurl.com/animated-qrs - Why & How Animated QRs Work - Highlights Sparrow, GST, Passport - We'd Love to Get Videos of Your Device Too! --- ### <img src="https://i.imgur.com/QyDl5nK.png" width=192 height="192"> UR Experiences - Looking into the UR Spec - Libraries for Kotlin Multiplatform - Animated QRs in Cashu - Bitcoin Development Kit Rust Language Bindings --- ### <img src="data:image/png;base64,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" width=192 height="192"> A Lifehash Use Case - Lifehash is now in Sparrow! - Why? How? - What's next? Who's next? --- ![](https://hackmd.io/_uploads/BkcgjQmtn.png) --- ### <img src="https://i.imgur.com/QyDl5nK.png" width=192 height="192"> IETF 117 Meetings * Gordian Will Be at IETF 117 on Monday, July 24th * Gordian Envelope Public Side Meeting * Monday July 24th, 15:30-17:00 * The Golden Gate 4 Room * CBOR Meeting * Monday July 24th, 17:30-18:30 * The Continental 5 Room * 15 minutes scheduled for dCBOR discussion --- ### <img src="https://hackmd.io/_uploads/B1_DXxdP2.jpg" width=360> Self-Sovereignty - One of the foundations of Blockchain Commons - Working on new articles - Self-Sovereign Computing - https://tinyurl.com/ssi-comp-temp - Origins of SSI - https://tinyurl.com/ssi-origin-temp - How does Self-Sovereign Identity affect you? --- ### <img src="https://i.imgur.com/QyDl5nK.png" width=192 height="192"> Gordian SeedTool 1.6 - Our MVA for CSR - ur:sskr for ur:envelope - Inclusion of Descriptor Metadata - Seed Reconstruction - Still for the Future - Progressive SSKR Splits - Persistent SSKR Sessions - Unencryption Metadata to Assist Recovery (Hints to Shard Holders) --- ### <img src="https://i.imgur.com/QyDl5nK.png" width=192 height="192"> Standardizing for CSR - What forms should we standardize? - Optional BIP 38? BIP 85? Support 384? - What metadata should we standardize? - BIP 329? --- --- ### <img src="https://i.imgur.com/QyDl5nK.png" width=192 height="192"> Priorities - What is your roadmap for interop? - How can Blockchain Commons help? --- <img src="https://i.imgur.com/QyDl5nK.png" width="128" height="128"> www.BlockchainCommons.com <img src="https://avatars.githubusercontent.com/ChristopherA?s=195"> Christopher Allen (@ChristopherA)