{"copyright_id":"0x5d99aecf3b5b3a7efd967b72a5af19cd609fef1fccd81fbd92c040b31a878fee","name":"Campanilleros de los Reyes de Sevilla","registered_at":"2026-06-17T09:27:57Z","symbol":"NIM1352536","token_address":"0x73f7b236e6f3f373fc15730c8ca067878fe0892b","type":"artist","uuid":"7db24bbd-da77-425c-ba15-6dea1c37bd49"}
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 0x5d99aecf3b5b3a7efd967b72a5af19cd609fef1fccd81fbd92c040b31a878fee. Chain 2 (Bitcoin): anchored in block 954174 (2026-06-18T03:01:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7db24bbd-da77-425c-ba15-6dea1c37bd49.json and https://artists.proofprofile.net/proofs/artist/7db24bbd-da77-425c-ba15-6dea1c37bd49.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).