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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c31f260a04b159a0707376ebf1d4003e95d428fe85a68a838fbc10cf79ae36. 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/cc27838e-2a1d-4b47-8e5f-e9ea0270db83.json and https://artists.proofprofile.net/proofs/artist/cc27838e-2a1d-4b47-8e5f-e9ea0270db83.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbece08fe1854b1ff394480f5f0b21a42e165e02baba0bb5cc7dcd05a6c0db978. 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/BRUM72000784.
Se A Gente Pode Sonhar (Gabriel Boni, Wolf Player Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ea34aaa0da4478424183897935ec23ace49a488e2fe8cd4180a4f82eb566516. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BXHBP1800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78095b770c7fe17fbb1d8e395959552985fd3407eaeb8121a753f24d7bd56911. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BR3T81800057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb81f2fdfdb0a528209f9e8aaea7cc9e4f0fdfe899d965e54a5e3afa8d4af4176. 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/NLF711312389.
Perfect (Exceeder) - Gabriel Boni & Breaking Beattz Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a8d17c1075ae1decc1e00762f7589e97a606284ba4f34d13d0f685079c72409. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ITH641606676.
Perfect (Exceeder) - Outwork Vocal Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be68029b9a75e00471029be7d401d3ddca02b635f1238872b1354add6427c29. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/NLF711312390.
Perfect (Exceeder) - Martijn Ten Velden Vocal Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e60d8ccb971d3866a0d82d044e5b90e75c509c2d105aa7e615ea3ad73330425. 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/NLF711312392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5e16917c28b86be5ebc1970f2df5ab88a459db82806aae4a34ce6301bffed2. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/NLF711312394.
Perfect (Exceeder) - Gabriel Boni & Breaking Beattz Extended Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01b6eb75e380d722a9d53f44d49157ac242c3d563a6e65fc0651a81b789079c4. 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/NLF712008713.
Perfect (Exceeder) - Martijn Ten Velden Extended Vocal Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c7b79730c8d1922046f25d8f5971a87b9120af47ab667033d7eca75884833d8. 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/NLF711312393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9356d783b4fb6b09797ca83f39b80346ec1469e1b2160a60d92393e8f5a1dd06. 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/NLF711312395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c23bb5a761042a305e85f8b3b3cea3adc441a94d67530d30df25f6f24caab47. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZGLM2337829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x403bd4b21be76487bd6e76e94935d436f8f157755ce6382056131ecffd00a97d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEH742228085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf926291446f49e5500a83860069686bb041dd2b4123329a3d6e7ef519c553ca4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BCZZU2200038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec471915c6527274da2e42fda6acdb8ea7b1b1e715941b170f46032953c2b8e3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BX6VO2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae85345eae47001244e488cff23ed90c37709188d027be5f891b7fcb44d69127. 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/BCZZU2000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e18a862c734df4c824d387dbf107ffdf84cf40915339d2528a34819a446557. 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/BXLVT2000096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef912974cfc26e3e479fdf5701bee22a4b5e0fa3c98c743467272abb07665e5. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBLFP1901126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbacc449ce0d84ff7fd1e396dfdc5387be4e2999b1616538e68103cb642bf5c6. 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/BR3751900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cacb0a8e0dbb4184ef8bfbd30b3c043f5b90ef73c3e154950606268eb2af76c. 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/NLZ541801198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6115cb4f2ecd7b07a90cab9ffdac634dfced3cc9e2bc317b6303d9df4643711. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BRRGE1706546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a55d4f5df61173ebc3ce0df76317cdc0e502ae48f5c10b6e3b9d926bf368288. 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/GBSMU3715533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6dd74b91af45dea672953f408a59892febb72d66183bb7928ac8c3d246df5ba. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BXEDT1700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf794297abee13b866cb768773aa6dc6668f5c8355f2125a166def005c307c6. 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/BXHBP1900812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec471915c6527274da2e42fda6acdb8ea7b1b1e715941b170f46032953c2b8e3. 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/BX6VO2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x716726b5c19d166277be6590119f27bf9f856d86ce1d73e00eda2f82c595eb51. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BXBKE2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x113fca9545f16c0016cf767fb4aedd2efaa973d35d48a357acb029a1365dfab8. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BX3E01800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd39a03191e7b1acf702f20bcef5961460e7e21f7af4510a8dca7814832bc2111. 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/BX0BA2000022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90fb779cd5c67d9263d3a9569761c4617ab478837d84977c89d600266440d572. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BXHBP1900519.
Pontos de Exclamação (Vintage Culture & Future Class Remix) - Extended
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x718b07c8fcf6fe7f04f3fadd9affd73a62ac09c7e3ed46fa84714cf976ad15b9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BXHBP1900506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85aca51ba63bd274ef1c188e387aa70a83ee0afe7132a29658eded60345462af. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BX2LP2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc95bc409ca04e9293d7f2b560393a92a5cc95d5769b52172a2f27ed6c282303c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEZN82335053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5a00ae51779177e39c7d3132127b41390eb7254511b3af8601f7ddcf56a6bc6. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ITH641802866.
Piloto Automático (Gabriel Boni, Voltech & Zucchi Remix)
Piloto Automático - Gabriel Boni, Voltech & Zucchi Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x129d22876c9a585c1cb6e821f2b3111c4886c074f7912e14d17400923e1f3bab. 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/QZ5AB1719769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc627a1865e8ff53c93342c9714481577899af719b5a03dff5b6b9459a8f8c8ae. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/ITH641606034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ec1a1f06d0b4908f6d31cdee9428d9b31bed4175a8ee0b8fbc623beb91f5d27. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ITH641603675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe09c6de2f01eab8b31b8b3b7c3b646887b3e20a61a5322ddbe994bb1b25c0733. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USLZJ1630366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7cd20bca172643ec7bd391757151fc0e70e1e665b107785f8751512ce3fe48e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USLZJ1630370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b97aaf2954a5df50a55fe78920c36f787a0b086d1b50ba0deaa7203a41293d3. 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/USLZJ1630372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17600bd07c93fa4fb22d7640e3355e920cbd867c811bae2d7886241449d9209d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USLZJ1630375.