Paul Michael Kennedy (born 17 June 1945) is a British historian specialising in the history of international relations, economic power and grand strategy. He is on the editorial board of numerous sch
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 0xb8f51517dc79e859a7fe197cbfd7d5f55c55333e0ee784d8c56528242fe999eb. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0c40a2e6-df59-485f-b9a9-597c78d12bd1.json and https://artists.proofprofile.net/proofs/artist/0c40a2e6-df59-485f-b9a9-597c78d12bd1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).