# Standards

## IETF

Proposal for an Opt-Out Vocabulary\
<https://www.ietf.org/archive/id/draft-keller-aipref-vocab-01.html>

## ISO

{% hint style="info" %} <img src="https://829440753-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FC9WTgUwBWkLFAgW01Gqi%2Fuploads%2FqCyOgJ9fIfzUsM4XHV02%2FISO-logo.png?alt=media&#x26;token=7a5636d6-ecd1-4209-ab4b-9a3c811acb29" alt="" data-size="line"> In 2024, ISO published the International Standard Content Code (ISCC) as international standard for digital content identification, ISO 24138:2024.
{% endhint %}

ISO 24138:2024 – International Standard Content Code\
<https://www.iso.org/standard/77899.html>

## W3C

W3C Recommendation Decentralized Identifiers (DIDs) v1.0,\
<https://w3c.github.io/did-core/>

W3C Recommendation Verifiable Credentials Data Model v1.1,\
<https://www.w3.org/TR/vc-data-model/>

did:web Method Specification, 11 January 2023,\
<https://w3c-ccg.github.io/did-method-web/>

Status List 2021, privacy-preserving status information for Verifiable Credentials, [https://w3c.github.io/vc-status-list-2021](https://w3c.github.io/vc-status-list-2021/)

VC Framework EBSI Hub. <https://hub.ebsi.eu/vc-framework>