{"copyright_id":"0xb44bb8ec72faa1c41bfb893f9d2172efdbe004c1a076feddce37ba46cffa4624","name":"Grupo Tronador La Sensación de la Costa","registered_at":"2026-06-15T04:05:49Z","symbol":"NIM0676704","token_address":"0x6ac78ee243442ba9f0596d3cd2baed7d4a6a6119","type":"artist","uuid":"df1f0447-7f55-4c84-9a23-16e7de8003e5"}
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 0xb44bb8ec72faa1c41bfb893f9d2172efdbe004c1a076feddce37ba46cffa4624. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/df1f0447-7f55-4c84-9a23-16e7de8003e5.json and https://artists.proofprofile.net/proofs/artist/df1f0447-7f55-4c84-9a23-16e7de8003e5.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 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 0x9a4857f22954714361c34b30cc2abe9559469e9e3d0f2cefe841efd6e003ea84. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/TCADX1862438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83643c190dfea99be1320fb4f80cf1d9b9ad9d0fa0cda11061d214a91a718527. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCAEM1929926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe119b577e29958dfd8e7ccd8a10e6d8f8dd1722b1e4598c4b79713a43fbdda17. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/TCAEM1929932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b8a86f9afe804e4bc971cb23f82a01e79c67c4b2af1899e7fa93e716db1dee. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/TCAEM1929933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6471d90c75f02dad60bfda1ee04fcd788504191de98b00569c327d9d5395f1a2. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCAER2034465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ce5b3be167deceaca8205c9fb4d8d8221adb7afb688eb4cfb82da7825ceb938. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TCAER2034466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xada07c0c53314658202f6c34dab170c173a22fe03d5a44b002d657070a1bfa98. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/TCAER2034468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0711d63198c06c336dab28d4363c27c403239bc85e274dde12a3d87cedfa1774. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/TCAER2034469.