{"copyright_id":"0xb802ab63fabfbf9509df90909abc22f13c8bf4331c1d3eb76c31271f80bf4efd","name":"Portrait of the young man as an artist","registered_at":"2026-06-15T17:05:16Z","symbol":"NIM0774430","token_address":"0x49344e090af03ece419dccf9fcd22110a73ce4c1","type":"artist","uuid":"0a0a2354-65ce-4b81-a381-ac296e6a07df"}
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 0xb802ab63fabfbf9509df90909abc22f13c8bf4331c1d3eb76c31271f80bf4efd. Chain 2 (Bitcoin): anchored in block 953879 (2026-06-16T02:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0a0a2354-65ce-4b81-a381-ac296e6a07df.json and https://artists.proofprofile.net/proofs/artist/0a0a2354-65ce-4b81-a381-ac296e6a07df.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).