booklint-stamp

Hash stamp: send a SHA-256 hash, get back a signed receipt saying a booklint-family service saw that hash at a UTC time, signed with a published Ed25519 key. Only the hash is accepted.

We never see or store the document — only the hash you send.

Your agent calls stamp_hash, your compliance team reads the receipt.

A receipt records one fact: this service saw this hash at this time and signed that with this key. It says nothing about who made the file, what it contains, who owns it, or whether it existed before that time. It is not advice and has no standing beyond that fact. This is not legal proof, notary service, evidence, or a certificate of anything.

Start here: https://booklint-stamp.fly.dev/llms.txt   API: https://booklint-stamp.fly.dev/openapi.json   Keys: https://booklint-stamp.fly.dev/.well-known/stamp-keys.json
Terms: https://booklint-stamp.fly.dev/terms   Privacy: https://booklint-stamp.fly.dev/privacy