Christopher Hughes (born November 26, 1983) is an American entrepreneur and author who co-founded and served as spokesman for the online social directory and networking site Facebook until 2007. He wa
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 0x0f3a70f98ca3a8f05efbe3f20c78373970f0819944d5004fd3832faf29b5b7c1. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/99ab3795-966e-4303-94ee-5aaa2bc17084.json and https://artists.proofprofile.net/proofs/artist/99ab3795-966e-4303-94ee-5aaa2bc17084.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).