Jonathan Black is a British author, known for his books The Secret History of the World and The Sacred History: How Angels, Mystics and Higher Intelligence Made Our World. He is in the charge of Centu
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 0x6a284893679902b20a8ec561c5f73afa82afca48fd06c599a6f8b041eb3b82c9. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/779d54d4-e6c3-4184-946b-ef639a930b7a.json and https://artists.proofprofile.net/proofs/artist/779d54d4-e6c3-4184-946b-ef639a930b7a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).