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 0xdb1af6ecdda695630ad2f1cdc1098bfe8428bd708344b0eccd4c60aafd9824fa. Chain 2 (Bitcoin): anchored in block 953654 (2026-06-14T16:26:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/49653f70-5d02-4294-a136-76a3c38ee7a6.json and https://artists.proofprofile.net/proofs/artist/49653f70-5d02-4294-a136-76a3c38ee7a6.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 0x378607e418bc8e64a7861e59ce32489e6d0f64268d32950498fe8e2f2b01c9c1. Chain 2 (Bitcoin): anchored in block 957595 (2026-07-11T18:26:17Z), 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/QMVRR1700156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff78721aa835bcf50ae42d7ee69d3cb2774bc14af071fb3e4c3b8a285e866fa7. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T02:55:40Z), 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/QMVRR1601489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4269c39c185e70460cc6c6b10ae0d61de97808d60b63143c43681a4f1bbd1e1. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QMVRR1600228.
Popurrí: Volver - Los Caminos de la Vida - Pero la Recuerdo (Cumbia Santa Maria) - Dile - Con Toda el Alma
Popurrí Cachete, Pechito y Ombligo - La Gota Fría - La Colegiala - Cumbia Estereo - La Cumbia Francesa
Megamix Multicumbia: La Cumbia Francesa , Yolanda , La Bolita , Capullo Y Sorullo , No Te Puedo Querer , Qué Bello , La Pollera Colorá , Cumbia Cienaguera , Vampiro , El Africano , La Burrita , El Negro José , El Gallo Tuerto
Salsa Mix: Anhelos - Persona Ideal - La Vida Es Un Carnaval
Cumbia Mix: Cumbia Popular - Tiene Espinas El Rosal - Ven Pa' Mi Casa