[KongchangAI]
Unverified50% confidenceFactExact time

When issuing a token, the authorization server embeds the fingerprint of the client's public key (jkt) into the token (usually via the cnf claim); when using a refresh token to exchange for a new access token, a valid DPoP proof must also be provided, and the server verifies the signature, the jkt match, and the consistency of request parameters.

1
Sources
50%
Confidence
Long-term
Relevance
10/20/2026
First Seen

Sources

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Stable URI
https://kongchang.com/claim/1076444
API
curl https://kongchang.com/api/v1/knowledge/claims/1076444
MCP
get_claim(id=1076444)