1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x8004f6ff3900d8347372882909a760b48d2e86d2afa1657691f5a9750e7dcace. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a3376496-5f80-4fc5-91a3-b9fc03866736.json and https://artists.proofprofile.net/proofs/artist/a3376496-5f80-4fc5-91a3-b9fc03866736.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Popurri: Estrellas Y Diamantes, El Cisne, Tengo Miedo, Te Vi Bonita (En Vivo)
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 → block OTSBitcoinBlock must exist at that height 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 0x56b705f93fb4db76501619a66bf47d36b168c940abda30333b319e16a8f2c816. 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/USANG1928432.
Cumbia Morena / el Mandilón / Cumbia del Sol / la Niña Quiere Cerveza / la Primavera / Que Levante la Mano / el Tao Tao / la Mucura / la Yaquesita / la Coloreteada / Cuando Yo Diga / a Mi Me Gusta Esa Nena Compa / la Machaca (Popurrí de Cumbias)
Cumbia Morena / el Mandilón / Cumbia del Sol / la Niña Quiere Cerveza / la Primavera / Que Levante la Mano / el Tao Tao / la Mucura / la Yaquesita / la Coloreteada / Cuando Yo Diga / a Mi Me Gusta Esa Nena Compa / la Machaca - En Vivo [Live]
Cumbia Morena / el Mandilón / Cumbia del Sol / la Niña Quiere Cerveza / la Primavera / Que Levante la Mano / el Tao Tao / la Mucura / la Yaquesita / la Coloreteada / Cuando Yo Diga / a Mi Me Gusta Esa Nena Compa / la Machaca - Live