# Identity-data minimization

Status: Synthetic-credential demonstrator with recorded cryptographic tests.

An AnonCreds demonstration that checks entitlement and recorded expiry without disclosing names, addresses or licence numbers, and rejects proofs with weakened conditions.

Uses fictional credentials, verifier-configured issuer keys, stored-policy checks and replay rejection. It does not establish a person's identity or current licence status and is not a production identity service.

Canonical page: [Identity-data minimization](https://www.toppymicros.com/zk-license-demo-en.html)

Primary sources:

- [Source](https://github.com/ToppyMicroServices/zk-license-demo)
- [Validation and reproduction](https://github.com/ToppyMicroServices/zk-license-demo/blob/main/docs/validation.md)

Agent resources:

- [日本語の技術説明](https://www.toppymicros.com/zk-license-demo.html)

Reviewed: 2026-10-11

Source guide: [Toppy AI resources](https://www.toppymicros.com/ai/)