One Hour Photo is a 2002 American psychological thriller film written and directed by Mark Romanek. It stars Robin Williams as a photo technician who develops an unhealthy obsession with a family to w
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 0xc03d79aa1d01625a3df47886327bd67192caf3010f8878ce2b29a92be4e74646. Chain 2 (Bitcoin): anchored in block 953933 (2026-06-16T11:13:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1f1c9373-6a58-4382-8673-6d5ec44e902e.json and https://artists.proofprofile.net/proofs/artist/1f1c9373-6a58-4382-8673-6d5ec44e902e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).