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 0xcd622faf32e02d87f47e9968a8ef5e6e55ff4c3fba77fe32c289e172bbdc2bd4. 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/6803e27b-2da8-4130-a61a-7e4207952b69.json and https://artists.proofprofile.net/proofs/artist/6803e27b-2da8-4130-a61a-7e4207952b69.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 0xa20ad3a262de148838e66abcd6c711c41af78721287f1b8a5f593a7d2e3a088f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BR3EG1800045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90b95ffda77fa5acae74e2004c15e306111ce1208bcd98f2be55747f1254ae35. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/BR3EG1800047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbfb0bea809b7bdb903f4a6697d457b342ed18d5ac5a1badb299e7d7942c430a. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/BR3EG1800048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7f9939675cd6c95d3d24ad66ee9ae95e6ecb0187666807e92d79df2cefe0851. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/BR3EG1800049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cbdf525255c349b98a3b10aa5e85af6b69a0a64f41ed135b849226e480ed689. 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/BR3EG1800050.
Caçador de Corações / Não Vivo Sem Você (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0273c334c5f3aafba38a28b0ae4ad9c08ae4ab1eb296d858ef03faa9c2939d34. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/BR3EG1800051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a662d137c89c784fb48da7473f26ad5f53dd94fbc9acadeff226c6330b819b9. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/BR3EG1800052.
Desculpe Mas Eu Vou Chorar / Não Olhe Assim (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ec98d61c801d2d40b1b1ce4a76c20de422356b436bbe4f3e93f55cb5039a36. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/BR3EG1800053.
Tentei Te Esquecer / De Igual Pra Igual (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc01966b63100837f5a11f9f9cd87f0e216792b43b2d232c5f9df5d29d5a84663. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BR3EG1800054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6814520b76d725953d3eff0ac4fbfed2f56600c6b668d03dd4140913c2cc174. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BR3EG1800055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x947afea95fc7ed1afdc0b184685ffab5715f96240fa68d70f2cd8df0ffc933db. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/BR3EG1800056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd66bde0e37b8e3b706612f76651786046e9ae3dc198e98136a6e6f95fe6a0b. 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/BR3EG1800058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf2b919c103eef1b8a9bae370c9d75efbe26008ee50eb2ec011ced2e05674b82. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BR3EG1800057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb0f8833410df00207e514c96ddd0f6f6870f571aaad2c71361063d9ffcc7a60. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/BR3EG1800060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a635c8ef1821ca0219a6b6599f4d24f532bcdcb19622d6ea421a975e83fcd0. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/USHM92082530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7f58eb71409b9774ccf56f651d7d929c14be9805f1e89636ae242360207d6fd. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USHM92094817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d30e0735df442c2c9986b9b2579a6045f7c856c3a393af0523a1d1de156712f. 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/USHM92094818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc79e3b28403ab92168d8c77e6183a8abe0f76008b79d6ef13a6fa8d8f0e1fad6. 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/USHM92094819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ead0f2eaa9e6a4f5b9f5af7fdcbb5b0fd6efc528f3131c14db825d5e314b40. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USHM92094821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6965f22aab993f1a0d77d38561a463f3c153ad47da8d121834876ae84629ab19. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T05:30:12Z), 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/USHM92094822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e5aaa5aa6f8f758a12771bb2513a9faeda1bdeeb3c11c236a7b28223548c5dc. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/USHM92094823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb75c3e203adb928e8b4b585450664c32a3112d06c0a41e4e1b148b4d80b319a. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/USHM92094827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce217be5bf9e20fd623dbc0fe7460f8fef5765ad387e5708537d43f834e4c1e. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/USHM22250989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0704c5115684bb9bb7ef892b832e9e04f654b078a57cf231abf99b9490fe5d7e. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/USHM22250990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d597ea5af4c66b8ced4046bdce6dae28d82323cd55906f1c292c4cb23ccc76a. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USHM22250992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd1b10a0c49c5a14041048f424b3042ee8e93e991aa88fd50713aef504d352e8. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/BR3EG2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22009cee639da9f63789604b40b5b986435e731916d9674e8ad53c79523261be. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BR3EG2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63eeeb7331333a18a2c5d595a740034bab839e8af4975fe3e59cbc9c5f973b39. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/BR3EG2200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6177cc5d0031063666c20fd9d7145a3d672f8c7483bb15d07cdb019eeaf9fddf. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BR3EG2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dcc39ff5b455e0b3a93e269b107aa23a76208d6caa9ba61eb31715a93c6a5c7. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/BR3EG2200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac2e5aa7e33d02e655da75f92ec438289edc651a83de206f70ee489f4cb336e6. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/BX04I2400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e1da11bd259d2ac063818bcea62b04c509ba0005fc6ee6fe1ec7e73dcfbd7a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BX04I2400034.
Jogado na Rua / Meia Noite e Meia - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e31f9b706037843b2de2951b8a64f98a97cfce1d287617db0336f612f55816. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/BX04I2400205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfa8548b162dc053b862f9537b5d2d2abbd081bcdc0193baa5f809b40d638b09. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/BX04I2400032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603f6015548e151e934bc593d11b5d7aaa4f7a5d105242c55bca21bf45ff0c38. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/BX04I2400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3acbef18b23e067ebb1019dc12a98e8e8cff4799d4e60ac8f8d21f6a570da5c7. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/BX04I2400035.