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 0x8a10a0fd96328ec3d9b45b4066c03e76984d29de24e9ccdf5d6da273b9961571. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/514e7326-9b8a-495f-8cb4-6a026fc59b06.json and https://artists.proofprofile.net/proofs/artist/514e7326-9b8a-495f-8cb4-6a026fc59b06.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 0xacc5e63836a133873340a316bb47013adbc002125af54dd0f2642686f2fb96ad. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/QZFZ22119754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x613c13fdd44f1e3107d021314b0df92555bffff992940122a204263c3180e515. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZFZ52110312.
Amigos Con Derechos (Venga Que No es Pa Eso)
La Cumbia de Bella Poarch (Build a Bitch)
Sal y agua (La version de Constelacion 82) [En vivo]
Los Dueños del Pabellon En Vivo Desde el Estudio
Todo Lo Perdi en Ti En Vivo Desde el Estudio
Popurri Organizacion X: Mozo / Borracho Borrachito (En vivo)
Las Inmortales En Vivo: Negra Tomasa, Lo que Traje de Colombia, Cumbia de los Pajaritos
Popurri Pegaditas: Costeñita, Llorando Se Fue, Sorbito de Champagne, Huayayay
Popurri Dinamita: Se Me Perdio la Cadenita, Maruja, Capullo y Sorullo, Mil Horas, Mi Cucu
La Cumbia De Los Negros Version Sonidera
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b59926fd111e65835c261843b5836545677fdb66790215280f80e5a402daa8. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZDQH2436366.