> For the complete documentation index, see [llms.txt](https://docs.toolkit.equs.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.toolkit.equs.ai/docs/revocation/overview.md).

# Overview

Learn how credential revocation works, how Status Lists are used, and what setup is required.

Credential revocation invalidates a previously issued Verifiable Credential. Once revoked, the credential remains in the Holder's wallet, but Verifiers no longer accept it. The wallet also shows the revoked status to the Holder.

### How it works

The platform implements the [IETF Token Status List](https://datatracker.ietf.org/doc/draft-ietf-oauth-status-list/) specification. Each Issuer gets one or more **Status Lists**: compact bitstrings where every credential the Issuer has issued occupies one index. Revoking a credential means flipping its bit.

The platform publishes those lists as **Status List Tokens** at a URL carried inside each credential. To check a credential, a Verifier fetches that token and reads the one bit it cares about. Two consequences follow, and they're the point of the design:

* **No request reaches your systems.** The token is a static, cacheable artifact served by the platform, so your infrastructure is never in the verification path and you don't have to be reachable, or even aware, for a Verifier to check a credential you issued.
* **The fetch says little about the Holder.** A Status List covers many credentials at once, so fetching it doesn't reveal which one is being checked, and the entries themselves are anonymized indices with no personal data in them.

### Setup <a href="#id-8.2-prerequisites" id="id-8.2-prerequisites"></a>

No additional configuration is required beyond the standard issuance setup. Status Lists are provisioned automatically for each Issuer. Multiple Status Lists can exist under a single Issuer when needed. Every credential issued through the platform already carries the metadata a Verifier needs, which Status List to look at, and which index in it.


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