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 0xb0a4fcd91b93428d08ed9e7ad63fe2cf958884e3c54f56b94861e216cead5fd1. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/38acab1b-1761-4a61-843b-609dfc31f470.json and https://artists.proofprofile.net/proofs/artist/38acab1b-1761-4a61-843b-609dfc31f470.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 0x62987e4173fe942c92b8b454ac79f2f4510a7ed4128562cf566262291ba02748. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/US7VG1607908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc07b163c891efe5b50cd7ef041006f8142fb14869308f1c3f5dc4e574b14e5d. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/QZMZ92028880.
Cadê Coco / Cara de Miseravão / Aí Como Eu Tô Bandida / Zapzap
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78e5dd2b7708a8c2c758a4efe234e6426128a698d7bf61b431c46255435abb5c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZW9L2327840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ccb1908861952894f39eb6591727508df24389931f8b4fccdfb241e04e2932. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/QZ5AB2494250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c7d69b0449348e88a58a23c51b4e70c945a57762b2467d1cb362b1f8561e8d. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/QZTVM2436800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdddaa6cfd2e5105a1b06df0f1f42d65d327c61a16442c58cd475ab318fa32f0f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZTVM2436804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce4b592929eed0e36b361b706904ae49a6260e6f7219974c0322db520a6a1a4c. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZW9M2409334.
Verão do Gali: Pressentimento / Ballena / Papinho de Augustinho / Passinho do Naipe / Desce o Gelo / Não Sufoque o Artista
Sminofay / Rala Rala / Tô Decolando / Sentei na Moto / Não Me Deixe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a88a92beca515669bef8f41da3079d65a64949ac41aea881244b5cd38b3a8d. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/QZGLS2521392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf2981ab1f79ec3e73b52a14df7659d0c52dec9cca665d4ecbbdc4329300f311. 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/QZNJX2536679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c43030dbd984f2c17607e3d5a35619d47ecae76559d80ad4d9375d80bcbc843. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZNJY2564990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fdcb88c770d8d18f424262eb77894a8c3cc5b1f6d69f98a8ea95b60584b73c7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BXLVE1400001.