Embed proof of authorship into your product
Authorship Ledger is the provenance layer for AI-assisted creative work. Add a verified badge to any page in one line, or verify certificates programmatically — backed by a tamper-evident, Bitcoin-anchored ledger with signatures anyone can check offline.
↑ a live badge, verifying a real certificate (AL-Q30J-ZYY7) right now.
Add it in one line
Drop this where you want the badge to appear. It renders inside a shadow DOM, so it can’t clash with your styles, and links to the public verification page.
<script src="https://ledger.agentivepress.net/embed.js"
data-validation="AL-Q30J-ZYY7" async></script>Need several on one page? Mark elements with data-authorship-ledger="AL-…" and include the script once.
Why partners trust it
Content-free
Verification exposes only attested facts — title, author, timing, chain integrity, and the human-vs-AI authorship split. Never the underlying private work.
Verifiable offline
Every attestation is signed with Ed25519. Fetch our public key and check the signature yourself — no need to trust our servers, or even call us.
Anchored to Bitcoin
Each record’s hash chain is time-anchored to the Bitcoin blockchain, so proof of when it existed doesn’t depend on any single company.
The API
Two public, CORS-open endpoints. Verification is content-free and needs no key; a key only raises the rate limit.
GET /api/v1/verify/{number} — verify a certificate, returning the signed attestation and Bitcoin anchor status.
GET /api/v1/public-key — the Ed25519 public key for offline verification.
curl https://ledger.agentivepress.net/api/v1/verify/AL-Q30J-ZYY7
Higher rate limits are available with an API key — talk to us.
Built with Authorship Ledger
Early partners embedding provenance into their workflows.