Ma’atara Provenance

Proof that your work is yours — from the moment you make it

Stake a public, tamper-evident claim that this piece of work existed at this moment and was made by you. The file itself never leaves your device.

Protect

Seal an image, video or piece of writing into a signed, timestamped claim.

Your file never leaves the device.

Find where your work has appeared, through crops, re-encodes and edits.

Matches on fingerprints, not filenames.

Check that a claim holds and see when it was made, and by whom.

Anyone can verify. No account needed.

Publish whether your work may be used to train AI, in a form crawlers read.

IETF AI-Pref and TDMRep.