Label 309 · Open standard

Roadmap

The standard is finished and implemented across three languages. This is the path to a public, community-governed standard.

1. June 2026Done

   Launch the standard’s home

   This site: the spec, the plain-language ELI5 track, the practical guides, agent-readable artifacts, and links to every open-source repository.

2. Done

   Open-sourced the implementations

   Published the TypeScript and Python SDKs, the Rust SDK, the CLI, and the standard corpus under Apache-2.0 / CC-BY-4.0 — all live on npm, PyPI, and crates.io.

3. Done

   Submitted CIP-0309 to the Cardano community

   Filed through the official Cardano CIP process. The proposal is open as CIP-0309 and now under editor review on its path to Active status.

4. 4
   In progress

   First vendor: cardanowall.com

   The full reference product — account, publish, verify, inbox, identity, billing — proving the standard end to end.

5. 5
   Planned

   Open-source desktop apps

   Native clients so anyone can publish and verify from their own machine, fully open source.

6. 6
   July 2026Planned

   Explorer support for Label 309

   Work with a popular Cardano explorer to recognise label-309 metadata and render it as a Proof of Existence — so anyone can see and check a record in the explorer they already use.

7. 7
   Planned

   An independent reference gateway

   A second, operator-independent publish/verify API for developers and automation — same wire contract, separate operator.

8. 8
   August 2026Planned

   A wallet integration guide

   A guide for Cardano wallets to recognise, display, and verify Label 309 records natively — the bridge from the standard to everyday wallets.

9. 9
   Planned

   First wallet integrations

   The first popular Cardano wallets ship Label 309 support, so people can publish and verify without ever leaving their wallet.