{"copyright_id":"0xf116765aba52bc7fd2cffe920efbb1322b6d0b99bbab517ec152fae3edde858f","name":"Alexandro Francisco Dos Santos","registered_at":"2026-06-21T15:05:03Z","symbol":"NIM1954853","token_address":"0x1453bb59b0f9ea6b627e1bcf3f79cadf3c8a27a0","type":"artist","uuid":"f675fc25-9b25-4d46-babc-60afff7e6490"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf116765aba52bc7fd2cffe920efbb1322b6d0b99bbab517ec152fae3edde858f. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f675fc25-9b25-4d46-babc-60afff7e6490.json and https://artists.proofprofile.net/proofs/artist/f675fc25-9b25-4d46-babc-60afff7e6490.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).