Signing key does not match the published public key

What it means

The key under your kid is not the public half of the private key you sign with, so the signature fails.

Sign with the matching private key, or publish the correct public key (--show-public-jwk prints it).

Run your login and smart-doctor ranks this cause against the others, with the evidence it found.

npx smart-doctor check my-profile

Already have the server’s error? Explain it without running anything.

npx smart-doctor explain '{"error":"invalid_client"}'