Scope fence – read before use A PASS verdict proves: the pasted receipt's execution_hash recomputes correctly from its policy_parameters/output_payload; every attached eddsa-jcs-2022 audit_signature.proof verifies against the key it names; and any anchor_bindings[].merkle_inclusion path reconstructs the claimed root. It does not prove the timestamp authority or transparency log itself is honest or complete, that the signing key belongs to who it claims, or that the underlying RFC 3161/OpenTimestamps proof bytes are valid – this tool checks the hash, signature, and Merkle layer only, never the TSA/log's own cryptographic evidence. For that, or for witness-cosignature verification, use the Witness Cosignature Verifier. Nothing on this page ever opens a network connection – every check runs against the bytes you paste or upload.
🔒 All inputs are processed locally in your browser. No data is transmitted. Do not enter real personal data — use synthetic or anonymised inputs only.
Verify One Receipt
Paste or upload a single OCG artifact JSON
Drag one receipt .json here, or click to choose a file
Verify Many Receipts Against One Checkpoint
Step 1 · checkpoint note (origin / tree size / root)
Step 2 · the receipts to check against that checkpoint's root
Drag multiple receipt .json files here, or click to choose files