{"copyright_id":"0x47ab83ccdbacdc81be7cc327ca870cf03f4c63e3356db18f53d78a8f3d2e1bc3","name":"Grandes Duetos","registered_at":"2026-06-17T15:18:13Z","symbol":"NIM1436005","token_address":"0xefaba10d6ec854ad09cb7d15dcae65b1932dab4f","type":"artist","uuid":"8e6cbb9c-7dd0-4609-a866-835b78b6bdaf"}
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 0x47ab83ccdbacdc81be7cc327ca870cf03f4c63e3356db18f53d78a8f3d2e1bc3. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8e6cbb9c-7dd0-4609-a866-835b78b6bdaf.json and https://artists.proofprofile.net/proofs/artist/8e6cbb9c-7dd0-4609-a866-835b78b6bdaf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf5a80a0da3f5ab24ced3a06156c2127f91eb11dd82d6dca64c69a3d0fb9bba3. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:09:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA61317036.