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 0x312eb6d20f50b5629cbea2801a0b0aafae0045104801b8526a577761e095ef08. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9a9b3326-9dba-4f73-a2a0-c4de4f7c837c.json and https://artists.proofprofile.net/proofs/artist/9a9b3326-9dba-4f73-a2a0-c4de4f7c837c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
No Pueden Con El Army (feat. El Fother, El Pote, Mandrake, Beethoven Villaman, Sin Freno, Packer Luther King & Kiko El Crazy)
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 0x9a24138bde82af2c2a5ad52839773f8aaca14ae83074bae7e363e19d32dfebf5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCABX1443592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa227e1227c42f62a91fe3387c2e51c92075e48b6842a11fdfeefc9b3b716f73e. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/TCABX1443599.
3 Locos (feat. Sin Freno, Mandrake & El Pote)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51aed2a6dc449ed3b5d2d03efd39f073b826841ed76d5eaba63d8d020abe7cca. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/TCABX1443614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x750b50045336ac925ce4545e9ce4fa82be3209fd3ff3863eaf0a1be449b24a5c. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TCABX1443619.
No Bulla (feat. Mandrake, Kiko El Crazy, El Fother, Sin Freno & Metrolo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ac37bf58742f5faa6406b73ecdcb95e7fd2b1424eea2114a40fdb64030d3c7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCABX1465869.
Dagli studi di Radio Rai: Enrico Simonetti (Via Asiago 10, Radio Rai)
Omaggio a Woody Herman: Woodchopper's Ball