__NOTOC__ Donald S. Burke is an expert on the prevention, diagnosis, and control of infectious diseases of global concern. He is a distinguished University Professor of Health Science and Policy at t
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 0x234a38fe97faff9c8905dc4135005dcd29ed8c76891ac4820864607ec2ea3db0. Chain 2 (Bitcoin): anchored in block 953599 (2026-06-14T06:43:55Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0d285e7d-d724-4b16-90fe-f7386f4dd702.json and https://artists.proofprofile.net/proofs/artist/0d285e7d-d724-4b16-90fe-f7386f4dd702.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).