Use the public NexArt verification portal at verify.nexart.io to upload, inspect, and verify Certified Execution Records (CERs).
Verification runs locally in your browser. No data is sent to any server.
Understanding verification
What is a Certified Execution Record (CER)?
A self-contained file that captures exactly what an AI system received, what it returned, and the conditions under which it ran. All of this is sealed together so any change to the record is detectable.
What is a certificate hash?
A unique fingerprint of the record. It is computed from the sealed content. If even one character in the record changes, the fingerprint changes. Matching fingerprints confirm the record is intact.
What does "Verified" mean?
It means the fingerprint was recomputed and matches the one stored in the record. The record has not been altered since it was created.
What is a node receipt?
An independent signature added by a NexArt attestation node. It confirms that an independent party saw the record and signed it at a specific time.
What is a verification envelope?
A wrapper around the record that includes the certificate hash, the node receipt, and any supporting metadata needed for verification.
What is redaction?
Redaction removes sensitive content from a record before sharing it. The fingerprint and signature remain valid even after redaction.
Verification proves the record was not altered. It does not prove the output is correct.