%% You should probably cite rfc7638 instead of this I-D.
@techreport{ietf-jose-jwk-thumbprint-02,
    number =    {draft-ietf-jose-jwk-thumbprint-02},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-ietf-jose-jwk-thumbprint/02/},
    author =    {Michael B. Jones and Nat Sakimura},
    title =     {{JSON Web Key (JWK) Thumbprint}},
    pagetotal = 11,
    year =      2015,
    month =     feb,
    day =       20,
    abstract =  {This specification defines a means of computing a thumbprint value (a.k.a. digest) of JSON Web Key (JWK) objects analogous to the "x5t" (X.509 Certificate SHA-1 Thumbprint) value defined for X.509 certificate objects.},
}