The JSON Web Key (JWK) Thumbprint specification was adopted by the JOSE working group during IETF 91. The initial working group version is identical to the individual submission version incorporating feedback from IETF 90, other than the dates and document identifier.
JWK Thumbprints are used by the recently approved OpenID Connect Core 1.0 incorporating errata set 1 spec. JOSE working group co-chair Jim Schaad said during the working group meeting that he would move the document along fast.
The specification is available at:
An HTML formatted version is also available at: