Adrian Shepherd, (7 April 1939 – 24 July 2013) was a British 'cellist and conductor, and director of the modern-instrument ensemble Cantilena.Biography Shepherd was born in 1939 in the county of Es
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 0x657315b240b0ff35dbf2e94122f85e6a3694971acd2f96899e9e9301eea0b55a. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3bcdd55c-1162-466e-a3d6-3bac63df63b4.json and https://artists.proofprofile.net/proofs/artist/3bcdd55c-1162-466e-a3d6-3bac63df63b4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).