Letterprove

Signing keys

The public half of every key an attestation here has ever been signed with. A verifier picks the one matching the key_id on the document it is checking.

/.well-known/letterprove-jwks.jsonthe machine-readable version ↗

Active key

countersigned
Key ID
lp-d157ef400e
Algorithm
EdDSA · Ed25519
Type
OKP
Public key
_a7ZWnJ2K5fQR4x9rgTc6kjEAo9f_RDCvh73nutTYnQ

The private half never sits on this service. Letterstory countersigns each snapshot after fraud scoring, so compromising this host does not let anyone mint a signature.

Retired keys (1)

Retired keys stay here forever, and that is deliberate. A proof issued today has to still verify years after the key that signed it leaves rotation — dropping one would silently invalidate history we have published as immutable.

Key ID
lp-756338073e
Algorithm
EdDSA · Ed25519
Type
OKP
Public key
GFitm2kMqJkQ-b1Yp0cCaIFu2Qrl4GzGLDiuTIN6_c4