Problem statement
Citizen identity rarely travels well across borders. This project modeled identity as an ERC721 token so that a verifiable, ownership-backed identity could be issued, recognized, and verified across jurisdictions.
Approach
- Universal + local identity — each citizen receives a universal identity plus jurisdiction-scoped local identities.
- Governing-authority model — a UN-style hierarchy of issuing authorities governs who can mint and attest to identities.
- Multi-purpose verification — the same identity token supports verification across multiple services without re-issuing credentials.
Lessons learned
Representing identity as a non-fungible token forces hard questions about revocation, recovery, and privacy that a naive "one token per person" design glosses over — the governance hierarchy existed precisely to answer them.