Drop a file to hash it in your browser and check whether — and when — it was notarized on chain 2800. The file never leaves your device; only its hash is looked up, straight from the chain.
Drop a file here or click to choose
Hashed locally with SHA-256. Nothing is uploaded.A notarization is a claim that a document existed no later than a moment in time. Aere records the first appearance of each hash immutably in the AereNotary contract — re-notarizing can never move the original timestamp. And because every 32nd block of this chain carries a post-quantum validator certificate, the proof is built to outlive the cryptography that made it.
To create a notarization, see the Aere Cloud API (we pay the gas) or call notarize(bytes32) on the contract yourself — it is permissionless. Learn more on the notarization page.