thumb|right|Amaryllis Fleming (sculpture at Renishaw Hall, Derbyshire, England) by Fiore de Henriquez Amaryllis Marie-Louise Fleming (10 December 1925 – 27 July 1999) was a British cello performer an
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 0x7238adb13308f6a6f96fcf6c42321ffbbe630c3d28300edea5927f6961c3fb65. Chain 2 (Bitcoin): anchored in block 953867 (2026-06-16T01:09:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/05be9103-03d1-4d4d-a6ce-f4be3b82ca8e.json and https://artists.proofprofile.net/proofs/artist/05be9103-03d1-4d4d-a6ce-f4be3b82ca8e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).