{"copyright_id":"0x9df44a78921bc217c78f7ecd9b967b2c277a1f07affaf2514bf9a6e23cda15cb","name":"Erick Sánchez y Su Orquesta","registered_at":"2026-06-14T19:18:47Z","symbol":"NIM0550890","token_address":"0x209bbf3cdaf6dcfc3b761d47ad21a7cbffd12f78","type":"artist","uuid":"8daf38a2-414a-4df9-a220-9a3aca0fd83f"}
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 0x9df44a78921bc217c78f7ecd9b967b2c277a1f07affaf2514bf9a6e23cda15cb. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8daf38a2-414a-4df9-a220-9a3aca0fd83f.json and https://artists.proofprofile.net/proofs/artist/8daf38a2-414a-4df9-a220-9a3aca0fd83f.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 0x6ec2a9307160f48fd17ea3ceff145ff74a1592ff479e72d9a7bcc567ebc8831c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-20T00:27:54Z), 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/QZPLS2112236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54c00e6156d37bf85906c9dc01bdbf551d87b48e7929b43f4ebcab5cf061f0ef. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QZPLR2197362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e3ff2e1396fc0475c25e05b2c90c4f6b3703214c497e21db5ea6e36d8c6b78. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:20:54Z), 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/QZPLR2197364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe704ad865f49773c034c7d101abade9f7d1b5d45942d148719beab59ca8dec9d. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/QZPLR2197372.