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The "Trust DID Web" (or "Trusted Web, if you same it fast) is a web-based DID method that improves (or extends) did:web by providing a verifiable history of authorized (optionally with multiple keys) DIDDoc updates, portability, and (optional) key pre-rotation support in a small, simple package with minimal dependencies. "did:tdw" has what we think are the important features of an easy to use DID Method. DID Controllers (owners) can easily publish the same DIDDoc content as a did:web and did:tdw together to enable an easy transition -- the "did:tdw" JSON Lines log file "did.jsonl" resides beside the did:web "did.json" file. We believe that "did:tdw", with its simplicity, and adequate "ledger-type" features (without a ledger), combined with the publishing simplicity of "did:web," has the potential to be the ultimate DID Method.
DID portability is based on the inclusion of a self-certifying identifier (SCID) -- a GUID that is a required component of the DID string that is derived from the DID's initial DIDDoc. A DID with the same SCID can be moved -- history and all -- to a new web location.
did:tdw includes two DID Core-compliant services for handling DID URL paths in the "expected" way for a web-based DID Method. Their compliance with the DID Core specification means that the techniques that can also be used with other DID Methods – although the simplicty of the semantics might be lost. Notably:
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- The did:tdw DID Method Specification
- The did:tdw Implementor's Guide (currently part of the specification)
An instance of the VID Appraisability Framework for the did:tdw method once the VID Appraisability Framework (being developed by the Trust Spanning Protocol Task Force) is ready.
There are currently two implementations of the specification available in TypeScript and Python. To be determined is where those (and other) implementations will be hosted.
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The TDWTF meeting scheduled will be established if this Task Force proposal is acceptedis still being established. Please see the ToIP Calendar for the exact meeting times and Zoom links.
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