Rosanelda Aguirre, Carlos Petrel, Jesús Barrero
{"copyright_id":"0x6f228ce1332ced5d2d6c4154cb2f198991d29f625eed663ca6f3da008ff83013","name":"Rosanelda Aguirre, Carlos Petrel, Jesús Barrero","registered_at":"2026-06-14T12:23:56Z","symbol":"NIM0451936","token_address":"0xbe1f83d28cc5a8dfa3706f474a836cc41c12fd3c","type":"artist","uuid":"4bd03cda-5e0c-4d7e-a9e7-b4bcd8346c8b"}
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 0x6f228ce1332ced5d2d6c4154cb2f198991d29f625eed663ca6f3da008ff83013. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4bd03cda-5e0c-4d7e-a9e7-b4bcd8346c8b.json and https://artists.proofprofile.net/proofs/artist/4bd03cda-5e0c-4d7e-a9e7-b4bcd8346c8b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).