Raymond Cooper (born 19 September 1947) is an English musician who has worked as a session and road-tour percussionist. During his career, Cooper has worked and toured with numerous musically diverse
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 0x8f21893c6ff83b9585ce7308152ab99299422edbd2bdc8e2cda0a5986d0d8426. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d9a2f5f3-58d8-42e1-b4d4-c4103350a2e1.json and https://artists.proofprofile.net/proofs/artist/d9a2f5f3-58d8-42e1-b4d4-c4103350a2e1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).