Glossary
Key directory
In short
A JSON document at /.well-known/http-message-signatures-directory listing a signer's public keys for Web Bot Auth, served with the media type application/http-message-signatures-directory+json. 4 operators in the Verification Ledger publish a directory URL. Example: https://chatgpt.com/.well-known/http-message-signatures-directory served one Ed25519 key on 2026-11-04. Related: Verification Ledger and Verify Web Bot Auth signatures.
Definition
A JSON document at /.well-known/http-message-signatures-directory listing a signer's public keys for Web Bot Auth, served with the media type application/http-message-signatures-directory+json.
Sourced example
https://chatgpt.com/.well-known/http-message-signatures-directory served one Ed25519 key on 2026-11-04. Source, read 2026-11-04.
How it shows up here
4 operators in the Verification Ledger publish a directory URL.
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Sources
Last reviewed 2026-11-04