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 0xb7de1d3259e58f7f558dac32ec13a9a99f94700c67e7dec294ba4788e4da6b13. Chain 2 (Bitcoin): anchored in block 953610 (2026-06-14T07:58:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1380a530-673b-4853-a04a-aba1438e0f03.json and https://artists.proofprofile.net/proofs/artist/1380a530-673b-4853-a04a-aba1438e0f03.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Todas Las Miradas (feat. Jero Makuyeika & Marcela Chao)
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 0xf8285c5a5babe02dc1193f72ae3e49b99040065a725248a8c1dfa6d417fd810c. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/TCABP1339037.
La Otra Realidad (feat. Weroman (Warrior Project), Lengualerta, Viento Wirikuta & Co Producida Con Shon De Edr)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52f0a8210110ff3db09ea672822262508fd13f8aca65c559604e9e0ceb0d7caa. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TCABP1339044.
Arriesgate (feat. Co Producida Con Castello Fernandez)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd78e43ec55b632ceaa83e54718e372247b7f293ac2d0c15d68ce840fb1ae168. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/TCABP1339052.
Enlazando Tradiciones (feat. Marakame Don Jesus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc364b29045ed241a7a7a7b4986bbf687c6caae661563cc2a5ac47fde9be966b5. 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/TCADG1795422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6a4c521ace901bf149b211aff86a26ea16118dffddf260a0653f8cbc57f96d2. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:03:32Z), 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/TCADG1795423.