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 0x624418801f69cc0d1dfeef725151494038ac5b775ac3a7732a0fb1f0fec97d88. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a112159f-1910-442a-8174-f32dfc6b287c.json and https://artists.proofprofile.net/proofs/artist/a112159f-1910-442a-8174-f32dfc6b287c.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 0x5715bd1ff5009a238cdd51d50c1c7856b115ae979f03de52ce4c65f5fa97596c. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:16:55Z), 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/QZTB42307093.
ESE SONIDITO DE PXTA MEXICANA (Radio Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c3091ec885b237e6c378ef57173111fc2c63c255e402d1bfc1c02d29273a03e. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/QZWFN2324848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cd041e4209961cda1c07e9c19272225e8ab4ab6b17eca6dc2602a61f4c62e0a. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZ5AB2448146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08e20261f486a76e99a02013f8ffa79516298ed2ebfb9be675aad8d91aa37941. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZHNA2419670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a6bdca47204541010a20413b960eb16cb91c5b55ee78c9a7ae1d5ca8d3a4fc9. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZNJY2423826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aedccb4746ec0d2113c77f253af97722d37dd6b3bdd63a3ca615eabb766d687. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZNJZ2493194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b0bb5847d5db2d6b611052ca153a84800ec1618ff11cd5adc8a49ee52c2ba53. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZTPX2493732.
Si la Gata Se Amotina Va Comenzar (Mashup)
Terapia de Choque Choque (Mashup Tiktok)
Si las Gatas Se Amotinan X Sech (Mashup Tiktok)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8258886fe63f67d82273b3df923aab77e7f27b826dfc94c756496a575cedf30. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QZW9M2415172.
Meninos Do Favela X Taina Costa (Mashup)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x553a7fc38fb26fdaaf8d6ad983617a602df13e97ab63768d3c6100b1078a74d3. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZW9M2415225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b9323db954630af58bf4020e63c39a0675109943381b302f5cd0bcf6f82c73. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZN882542688.