Name: ISNI (International Standard Name Identifier)
Homepage: https://isni.org
Short description: ISNI provides unique 16-digit identifiers for public identities contributing to creative works, disambiguating individuals and organizations across the media industry. Keyoxide integration would allow users to verify their ISNI and link their various online personas. This is particularly relevant for researchers, as ISNI includes the reserved block of ORCID iDs.
Optional API documentation URL: https://isni.org/page/technical-documentation/ (While not a single API doc page, this links to relevant technical resources including API guidelines and schemas, specifically SRU search and AtomPub.) Proofs could leverage the ISNI Search API or be constructed similarly to ORCID proofs: proof@ariadne.id=https://isni.org/isni/ISNI_CODE.