thumb|350px| The TEMPUS (Trans-European Mobility Programme for University Studies) is a program that encouraged higher education institutions in the EU Member States and partner countries to engage
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1af7c1b9cf6ff6a35b8a803c54d78651efa394e8c32e9d6d155adff3f7fcd26a. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/84c554f5-c79b-44c6-b447-7ee7a2bb3c67.json and https://artists.proofprofile.net/proofs/artist/84c554f5-c79b-44c6-b447-7ee7a2bb3c67.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).