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 0x3ecd5f2a3efa484b405c36985acdcdd89d0a4c6fdfd09524937d6587c62055c8. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ee21a28c-60a3-4293-a07b-1c0b2801afa4.json and https://artists.proofprofile.net/proofs/artist/ee21a28c-60a3-4293-a07b-1c0b2801afa4.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 0xa364e234734de4b3362821794f94adcdd8e2b37704943c03753d440ee25f47f5. 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/BX8WE2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c45bd1602b0ca54f9d530bf85cd54b65b403d3c318bedc328f3c9b9f121718e. 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/BX8WE2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a5c9d107d57108f505ee8734defbb9acbf1da9820ff2c34f68fceebf9b08a3. 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/BX8WE2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9d66f3345280c14f1ddb492912a50b51cfe712ea35a67947b1faac4296bbb8. 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/BX8WE2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11c072c635a1a1f8ad5f94bfe694983857b9fc57751e1ad0eedc42ee40809450. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/BX8WE2400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46fc2395bbd10c13f74dc8cf4399e2bb363b5247b9f3407cc38ec602f36195ea. 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/BX8WE2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a5c9d107d57108f505ee8734defbb9acbf1da9820ff2c34f68fceebf9b08a3. 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/BX8WE2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c45bd1602b0ca54f9d530bf85cd54b65b403d3c318bedc328f3c9b9f121718e. 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/BX8WE2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa364e234734de4b3362821794f94adcdd8e2b37704943c03753d440ee25f47f5. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/BX8WE2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x428b2d73975a9e356c747cf0fb50d2046d93ca8d309b961dd9bdf97be45a3adc. 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/BX8WE2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x645935ba650b410887118f9c0ea6624f55173d849d1a08701c77d1d428a3b669. 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/BX8WE2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9d66f3345280c14f1ddb492912a50b51cfe712ea35a67947b1faac4296bbb8. 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/BX8WE2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f82a39ff82a786834743089343cce1cf8e010ded94168a92a58298d5488bcc. 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/US7VG2555137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbb1d1259e7991e98dd0242d0bd9f9b7394997d072baedd1eef4de96b3fb3d32. 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/QZW9M2467237.
Decida / Seu Amor Ainda É Tudo - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x675ea0b1bade6b9858b6238829ba2f55797691258275d584d705acae473bc180. 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/QZW9M2467238.
Tem Que Ser Você / O Que Combina Comigo É Você - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x408e946c7bb0b29d6e45460e20d84165e4bf5d9b5a40d39433539955fd6dbeb5. 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/QZW9M2467240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e9905bd100ff315787f01ab6c2996a3b3825a0ac2b47ef21add71bdb78a4ec3. 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/QZW9M2467241.
Eu Não Sou Ele / Pecado de Amor - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x127d713bcfe4b52eb4b40ae5435811ecd96adc531867703ba87105f9fec51aca. 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/QZW9M2467242.
Antes de Voltar pra Casa / A Ferro e Fogo - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb66a87185381acca98c17ba2cfeb6b2e3a238fd350694a4efe85c349f1350519. 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/US7VG2555138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aca9e96aad8d5a04b374cacca49d5f629fb0472db118e7a81fd2587a11aea1c. 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/US7VG2555139.
Coração Cigano / O Gavião / Acidente de Amor - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f778a799a421be79fab8e1fdaa6a2bc7105cdd00ca4b291e4c49d9d6013292. 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/US7VG2555140.
Paixão de Peão / Que Pescar Que Nada - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a3a5f0187a2112f67d2f47748eb4234ac42723721c6205b7b5b1da662753822. 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/US7VG2555141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aca9e96aad8d5a04b374cacca49d5f629fb0472db118e7a81fd2587a11aea1c. 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/US7VG2555139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f778a799a421be79fab8e1fdaa6a2bc7105cdd00ca4b291e4c49d9d6013292. 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/US7VG2555140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbb1d1259e7991e98dd0242d0bd9f9b7394997d072baedd1eef4de96b3fb3d32. 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/QZW9M2467237.
Quando Você Quiser / Não Faz Mais Isso Comigo - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x183af4224644e91f2a85021d37d538aad80ee64d77927cecde3cfd2fcc4614aa. 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/QZW9M2467239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x408e946c7bb0b29d6e45460e20d84165e4bf5d9b5a40d39433539955fd6dbeb5. 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/QZW9M2467240.