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 0x27a9ae99679bcb9136dca9df1d112ce75fe64344331ed0459dd0c27c7fc45631. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0c7e2cf4-5957-4860-9cb6-a783f1bb3dcd.json and https://artists.proofprofile.net/proofs/artist/0c7e2cf4-5957-4860-9cb6-a783f1bb3dcd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
México Lindo y Bandido - Remix Dj Migue Soria (Banda Sonora de la Película: "Los Jefes")
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 0x8720460f6a8c5489b6ee3746eb97ebdfbb27b0ffd560dfe92cd3afeef8ebfa0f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/MX3601600016.
Éxtasis - Remix Dj Migue Soria (Banda Sonora de la Película: "Los Jefes")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d8a9e1e46be05117a5ca9823d8681e396f757ac67136f42e870ab908ee3edc1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/MX3601600010.
Los Jefes - Banda Sonora de la Película (feat. Big Man, feat. Campa, feat. Draw, feat. Millonario, feat. Sonido Caballero) - Gift Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6417bf66adcc36548778795b1f92fcb5e9e907371a944b48ca24470747be6de2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/MX3601500038.