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 0xf4281095a53210bf5947ec5f895ba84e59fc3ff5d98b0d6ffbecc6695b76967c. 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/587b688d-f223-4afe-bb80-f1b098845f26.json and https://artists.proofprofile.net/proofs/artist/587b688d-f223-4afe-bb80-f1b098845f26.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 0xb2c42c3f01400d9c12254661be4af91764088aab85bbf7cdde64fdc283470526. Chain 2 (Bitcoin): anchored in block 958861 (2026-07-20T10:02:52Z), 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/QZ5AB2338608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ad96d6175d79118644131c9d24bfe7635307d0af30e94a5e84c635a5e1cf17. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:19:55Z), 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/QZNJZ2395146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x764af40ccdc1ef3a37bb61cda78a2aa6e2c83d3fd729ffa4234c3c7fb7ad3773. 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/QZGLM2439984.
Refrigera a Minha Alma (O Senhor É o Meu Pastor)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4de5b04b2db14e68e522ac58da540f10e7665e3f3f28c4b797dbb74cb59527d. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZGLM2450454.
Refrigera a Minha Alma: Collection, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x764af40ccdc1ef3a37bb61cda78a2aa6e2c83d3fd729ffa4234c3c7fb7ad3773. 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/QZGLM2439984.
As Vezes Alguém Me Pergunta (Achei a Felicidade)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe204bbe392c9137e2e200d13495a989f74dd8e2fdff5588689920907221470b0. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZGLS2420894.
O Amor de Deus: Coletânea de Hinos, Vol. 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7215261b74b6a6717fc074ece0e198c188f6df0811ec41319fb8bd97e14edb1. 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/CACWV2408606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb029c6bedef597d90715e0ac5b8ed547bbab78d7149081e48eaf96f28449b543. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:00:18Z), 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/CACWV2408626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46fc5fc10384c346c0f8c6ccaa4cd600f2988d2b31fa4d6517afbcb57c954d42. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:33:51Z), 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/CACWV2408607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5839f0daeef53e923ab6c691358b65e62d5f11667b04b9508ef687f539c45f4d. 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/CACWV2408616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a23f9be1772291a99650146c793ce3d4ae2b58246efffa17257f2d3a960517. 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/CACWV2408618.
Como Desistir Deste Grande Amor? Collection, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce8cdd437871ee4644165bb972c95c2fddaea0e9a3f88a295e536f1d474a860. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:14:06Z), 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/QZNJV2467609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cfa1eadc933355229065bbf56b23ae6a7a2945785082751d5cbdf2216e79787. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZNJV2467611.
Há um Doce Espírito Aqui (Doce Presença)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc6274fcbf8b032a805f4006cd5a8fd842b24ed59a0913500f6cdf3c154bac7. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZNJV2467612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6501d3d80fb72e02a7d7c73132e1661866beeaa2e215bb4545882e56e687a123. 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/QZNJV2467613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eaf9607b49f2dd29981e4595993cd7d4f927dc13c56e7c8656208a908433c26. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:02:21Z), 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/QZNJV2467616.
Peregrinando por Sobre os Montes (Brilho Celeste)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x969ebbdf03639a0e8e0329ce1b57fc25490530f55717667f8190b3fd49a7c155. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:47:44Z), 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/QZNJV2467620.
Esta Paz Que Sinto em Minh'alma: Coletânea de Hinos, Vol. 7
Castelo Forte É o Nosso Deus: Collection, Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f07b1ec19f988e2079b11dfe527ee95b558a5c4a69deca8fbe19b4099200f20. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZNJV2467485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e2aaa29af64e592201cdfbedbfdd5eaa5816a9a6a2cfe12b510b7729f9239d. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZNJV2467487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec7a6bddff421eca18d38d918287f3c4037c2a631abffaf6c892bee3435644d. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZNJV2467490.
Meu Coração Engrandece ao Senhor (Cântico de Vitória)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc14a943db4d3e05705ec9be387c77616e472f4468cbfc0fc2789991459a58a2c. 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/QZNJV2467491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34a622d23df599ce5969ab4ed47829f4e093a775662b103a0e8b8f6f3a95415e. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:30:37Z), 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/QZNJV2478102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ae3ef5ba9a16bfec51ec3853f5649f3661bbe611967262d4fcc7cef5f71c763. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZNJV2478103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe75bf33700911334953e2b317d4f4704658bfb1c9c08a98d4f341ffed738f14. 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/CAENV2410337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74a93f8d17c3f7d2a2ff70aae3dbf6022b7df7511453d7484ef23a6515d57a71. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/CAENV2420386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x552a479eb7da7f53208e49813053f2c9811a1088ed71c6d8e03c9a569ca924d3. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:09:13Z), 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/CAENV2447648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaf9bbdcb6eea233c7b84566ff822fd7db9ea6540d8598531b7869e3f28ede4c. 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/CAENV2447649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd16f2e854741c6f2069f91ef198c6b7ec14e3a989fb270395bf041f54cbb32b. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/CAENV2447650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04dfcb9597bd3bf5f5a62150f0d8566a4ac12235c4e5af456f9d239acafea6d5. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/CAGOO2462703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7077b24cdcb4e97fc457a344895ada09737423df9b05929f37e50f7fe9599308. 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/QZTVM2438438.
Primeiro Amor/ Do Norte Vem o Áureo Esplendor
Portas Abertas/ Ao Sentir/ Entre Nós Outra Vez
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5efcaabb2f3dccee2089babe7709d5a115eef02f3655d59a79432c474a7dfcf3. 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/BR65M2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd539b6091fb3d94ce54d56ec189933b602137d8f92d871f76fc05bb689e6b4d9. 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/QZW9M2415127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc41503d4e3862bfddab7d8617fc98908a12175929ac3b6320c3b554834bea2ce. 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/BR65M2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83f7266c52d9b3521dcb4354f9adb566147f77666389a548734a2ade9e34e342. 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/CAGOO2559843.
Venho Senhor Minha Vida Oferecer (Oferta de Amor)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b3c7dbfcbbe8c452a7f1357d3c72055317d358f9d5e17a239b330bdf0eaa446. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZTVM2511011.