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 0x97fc6f2e20cf629fffc3f83df41d5dec608d9526af4d7b2cdb760ae8f186fac4. 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/930b4ae9-be97-407f-99b6-5a08732f403e.json and https://artists.proofprofile.net/proofs/artist/930b4ae9-be97-407f-99b6-5a08732f403e.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 0x010052f6f7d16fe5eeb0facfd54900cc3c4bd8815060b5fb11a869ce8e4c61e6. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/BRBRG1400633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51072a6b8852674e1738e98ddc7d4c1f470d2e1866910bd60eb99b4e3610c0e8. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T10:33:57Z), 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/BRBRG1400601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde111026bdeebdcd37da4c826066c89b40c60e20c90d7784e71df1875d2a09e. 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/BR90B1701557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc7ff20eba6f0c06149800f6ab2d079ba3b6e952034accd3d8301a712937a696. 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/BR90B1701197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24e25d308e04c580741b9c3f5d5ef97bf7a9a13737e6f7f0e3dd1f1afb1b9f1e. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/BR90B1701194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb917076f2a7bf1fd8ff046706b8153748b2a5e89f61680b0d4bfae518b4fb88. 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/BR90B1701183.
Os Três Desejos (Gênio Da Lâmpada) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e0fd8160b4e50cca4c4b76b0e6160a06bf6a0856a62ecbfee2701d5c81eacdd. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:42:04Z), 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/BR90B1701198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64baba418e30e813c9d934c86ed1de8cbb267a7bbf4caf20726ac47837b72863. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:22:46Z), 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/BR90B1701191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4daaba05867c2a3e4ce88ccb261a461828ff0c6cb34589b5e1a1c0c05c9bd230. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/BRBRG1400554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4130f69fd95536daea565dba38e5c3a4b0cadaf2664f3c09e60a54d05fd56f78. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:28:00Z), 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/BRBRG1400555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f8f2a172c17c2785ad161fbdd73db84c66d808019a2857a6779f6999e4e0758. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/BR90B1701489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce8a2b783285bca7c9f4819653278c9c38581eeec452e09d17929d96af1fe0b. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:29:46Z), 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/BR90B1701509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x238dfc28573b26309f169ad4b95890be68b25800e68eeddffbf4d8ee9fc7e2f0. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/BRBRG1401237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2dac7e7b6f934bf906b609a81b947abbd2affc723124d2b51a7a5799be721bc. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/BRBRG1401262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x113b566d44f4bc852046f15238efed02f0b1c1440016f9f7fad6f217851df3e8. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/BRBRG1401256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b1a691a3b6bd99ec27f2a5d798bd10322d4cb9974d24667f99a8d7978841886. 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/BRBRG1401258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce2a16b6c5acf697247a1f430ad66983321b5ac650135008b0e6c53c1e39f98. 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/BR90B1601466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c0b36fb9b9f8b895e54e9d896d3546f6d99f3391b923e0180078e6743adbb83. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BR90B1701476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7181c381d2261c3ac5d6c97a3cba7a5d086a15f388e9e8ffe42147390bfc7a. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/BR90B1701482.
Só Sofre de Amor Quem Não Tem Dinheiro pra Beber - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa515b192c29185cdd4ff1c8f40d7f0a14e15ff8e50248776dd9e297c2504d6ba. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/BR90B1701486.
Se Me Der um Beijo Eu Conto os Meus Segredos - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a605af455103a59c4bf81708a3eec288b05ea9628321ccca53ac4e51f4b867. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/BR90B1701484.
A Mulher Enganou Adão Sansão e o Lampião - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f0118829fdd597c6ef112d1f74cc54829cb4cdc0db018d4b92b6741d5f4e64f. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T09:45:53Z), 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/BR90B1701460.
Coração de Homem É Igual Bolsa de Mulher - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfecb8e13cfa08cbc69937846eed19f97d4be80518680857cd8f95c36741263c0. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/BR90B1701462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5484d2302f4b3c0125b974004149fa170ba0668f07a30403c6b68f63a335c8b9. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/BR90B1701478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93635ed1117164f2b29f714a30d284b9d309d8f013f6c32ef37d0f07d0dd73e. 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/BR90B1701464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4c6952026884faf3e501b752decc57df89af13ed28b84da1c9e8961c532802f. 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/BR90B1701004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f64bd949e560e7d5faf505df9d4f916f09bc61b42bcd7528a4dfc43b7b8dea. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/BR90B1701014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8310df6c32c776b2c0e24828b8cbdfba87645a2eaa08d2f9a77aa43a17f231. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/BR90B1701012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x964b8494c0a343f4b06792492be91cea694107ee47a681b19f720e1aa4b326f4. 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/BR90B1701015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x946d1e5ecb17aff5a26f2966d1016dade4d11346005c2537636e08e38e6fb383. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/BR90B1701639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5687686cb5be169343108c9b5c95fde6689575baa3b1e85ba52c5269adf93b0. 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/BR90B1801229.
Homem Chiclete (TSO Mais Forte Que o Mundo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a18adae922da4aa11aaaaeb4a7402e9c968f5024c12b3aa0de7ff4bf15fdc70. 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/BR90B1801237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56222f9f4f406eb169780552e223b778f2e3fe382f365ef676d9ee5d78593070. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BR90B2102618.