Seal what you made, when you made it, over the exact file.
Artwork, a photograph, a manuscript, a card, an object, a file. You declare what it is and how it was made. APIR seals the declaration and the fingerprints of your files onto a hash-chained record that an outside clock timestamps, so anyone can check it later, and nobody, including us, can rewrite it without the check showing it.
A declaration needs a declarant. Sign in, or make a free account, and come back here.
Sign in to sealSeal what’s real. Check any file against the record.
A contract, a report, a photo, a design. Your exact files are fingerprinted in your browser and sealed on a record an outside clock timestamps. Anyone checks a copy later, with no account, and the proof checks even without us.
- 01Bring it
The file you want to seal, or the one you were handed. It is fingerprinted in your browser and never uploaded.
- 02Declare it
Say what it is and who is declaring it. The declaration and the fingerprints are sealed together, signed in, free.
- 03Timestamped
One event on the chain, anchored nightly by an outside timestamp authority, so nobody, APIR included, can backdate it past the last stamp without the check showing it.
- 04Checked by anyone
Drop a copy on the check. It matches the seal it belongs to, or you get an honest “not on the record”.
- 05Carried away
Download the portable proof and check it again offline, date included, with nothing from APIR.
A declaration over your exact files, on the chain, timestamped by an outside authority.
Seal somethingAny file against the record, or an API’s domain before you call it.
Check a fileSealed declarations for your own users, from your platform, by the call.
Read the APIAPIR sealed the declaration and the files; it did not determine how the work was made.
Seal from your own platform.
Marketplaces, galleries, studios and record-keepers seal on behalf of their users, by the call. Tell us what you would seal and roughly how often; a person replies with the API and the price.