# Representative Use Cases

DeDi.global can be used to host any public list or registry. Users are free to define their own schema on DeDi.global to suit their use cases. A few common examples are listed below. 

*(Click on each card to know more)*

<table data-view="cards"><thead><tr><th>Type of registry</th><th>Impact</th><th data-hidden>Before → After</th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><strong>Public keys</strong></td><td>Instant key discovery. Rotation propagates via Watch. No stale certificates.</td><td>Static file downloads <strong>→</strong> Versioned, machine-discoverable key records with rotation history</td><td><a href="/pages/iNNHt5rW4AN6NP81BOYz">/pages/iNNHt5rW4AN6NP81BOYz</a></td></tr><tr><td><strong>Revocation</strong></td><td>Universal revocation for XML, QR, VCs. Single API call (&#x26; optional cache) to check status.</td><td>No mechanism for revocation credentials <strong>→</strong> Hashed credential IDs with auditable state transitions</td><td><a href="/pages/JAaKFAHaMJGiq9sBEgQG">/pages/JAaKFAHaMJGiq9sBEgQG</a></td></tr><tr><td><strong>VC signing keys</strong></td><td>Global key resolution in one call. Historical lookup for older credentials.</td><td>Scattered across methods <strong>→</strong> Signing keys (Ed25519, BBS+, SD-JWT) with version history</td><td><a href="/pages/2YETFSBH3bhFhP0Sw0xW">/pages/2YETFSBH3bhFhP0Sw0xW</a></td></tr><tr><td><strong>Authorized entities</strong></td><td>Programmatic authorization checks. Revocations visible immediately.</td><td>Periodic PDFs <strong>→</strong> Real-time queryable registry with lifecycle management</td><td><a href="/pages/Zx5XDdBRAHakLFj9tnBY">/pages/Zx5XDdBRAHakLFj9tnBY</a></td></tr><tr><td><strong>Schemas</strong></td><td>Machine-readable discovery. Verifiers validate against exact versions.</td><td>PDFs <strong>→</strong> Versioned, resolvable schema records with namespace URIs</td><td><a href="/pages/ahUORxmOrDJ9zD9TUnD3">/pages/ahUORxmOrDJ9zD9TUnD3</a></td></tr></tbody></table>

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