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 0xd39093135bdd5bef38a1dfc76b89394628ae442f897c3a4c3ae517f50b6aaf69. 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/aa80172a-fbee-44e5-b9bb-d1425604e4d9.json and https://artists.proofprofile.net/proofs/artist/aa80172a-fbee-44e5-b9bb-d1425604e4d9.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 0x7abb79589f8eaf9c41785d5cab0c6693d6ab79fedbce61c29f426e76af936939. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/BRGYC1900029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x310a2f663e560662ba99adb0add686066c63602f8e7f3b3cb574cfd84bb3a030. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/BRGYC1900031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799398cc63f49c6ddfd98747f7c2d5cbc4de3a145a5bfb100c56fb3d09048bb0. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/BCAMV2000064.
Voando Feito Um Gavião - Porteira da Fazenda
Voando Feito um Gavião (Porteira da Fazenda)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31129d1a77c5e2fb6997bad5e3ba9f7be9f174194bfc04972617f51e0e9f3910. 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/BX13U2000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1188d65b510e9044598d991c3b7b62c2fe8df64e70ccc713703c58a003493766. Chain 2 (Bitcoin): anchored in block 958117 (2026-07-15T07:36:28Z), 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/BX13U2000021.
Mulher Ingrata e Fingida / Rainha do Vaqueiro / Quem Ama Mulher Casada / Fome de Amor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe332010304a890f50bfd4b0c98f8b7bf7941893e6a5f660ccd52f760aae16ab2. 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/BX13U2000025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0df6158a19e373d0239cd49f67e0fee47feee9e9daf00ea371aedcffb72fc499. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/BX13U2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e90b36a851a70a76bc8afc44b211417646623fcc6e5c8f3e47b6b0dd4642d26. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/BX13U2000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d6bd9124a50d052eebc1d21da906e64e8ab98e1f594310db7c1f8de35da60f. 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/BX13U2000050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8eba39bb2a6521e2b639221af06b51f8e45dee747528b01da4544e4430289fc. 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/BCBCD2100036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf271d4fb823f7daad279d4ceb39aa803bab4f3c2a9f7e82a1d45d47c1cb269. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/BCBCD2100094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x642ea2ab70cd3d358b14202c5f8129d4696ec168b6d904c83c387de73fdfd421. 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/BCBCD2100110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84aa71f20218f36b797cd826267e6456e930576c0c25196dc3954558c5852e50. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/BCBCD2100112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a0ef82f7bf93763d75063f5e7d0ecae7fa5705bc377d5928eb99ce0de1bdf94. 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/BCBCD2100092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf271d4fb823f7daad279d4ceb39aa803bab4f3c2a9f7e82a1d45d47c1cb269. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/BCBCD2100094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00eced41a1a0b7085af1741e7d8c7abf7c4a3a2525260b23617e4260689d3ef. 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/BCBCD2100090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x043c00b268e25a07ff67210137c65bae5d170f585ed8d6fd5a3c11b277a36406. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/BCBCD2100100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x793bfb30f37a02d003478226096704c7cdd5b3c06feef82530ff4e7af8ae6afa. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/BCBCD2100098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa42cbf9be44d608c1e3544fd90cdfdb8e936f7dd683728e49526921396d7096c. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/BCBCD2100102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce4c4895a3136053e77386163343241304ce5e1c96a7757cf522dcac21fbbc0. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/BCBCD2100104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc68d09bdd59fdd2f87b5e0cc7c65d518f0d9db1a9ebeb1c9017e8a1825db4819. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BCBCD2100108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b36bfe8abd0a4caac58266ccf47887097ed33ccb51162dfe665d981e6db841e. 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/BCBCD2100096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x642ea2ab70cd3d358b14202c5f8129d4696ec168b6d904c83c387de73fdfd421. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/BCBCD2100110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe1ef30b561b9208d1ac4dfb117a10fdcd7cf3e6d8742927eeb52b3e100589a6. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/BCBCD2100138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2569fe1fb0e4f0c8c38bafa5d451aec76c2c6365a51a813b98e2880b7ba0ff3. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/BCBCD2100114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe64c0c04f8175f877b4905578f9461691fe483a8cea8ede15a643990d267bcb5. 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/BCBCD2200282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b47c835b857154cc50af468c47c5f53776b81ea46486f6379712c6d04067b49. 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/BCBCD2200270.
Gleydson Gavião em Itapebussu - Parte 1 (Ao Vivo)
Gleydson Gavião em Itapebussu - Parte 2 (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b5372d0c0c01c48a4ba856037a514a688d47a761e3839b228dc90ff3b40e13. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/BC5192300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b8346b0e0a00029aa8a33b2fc0f1780f0882b7ca10842f44d9f00b7254fbb51. Chain 2 (Bitcoin): anchored in block 958613 (2026-07-18T21:35:09Z), 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/BK2TD2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbeb948c04da8f82a5311df6fc5ec0d832931250062faacc59806884f7916ab2. 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/BK2TD2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67a5285afe44c6d1b4b8382c8641fd27c01b77edf0969201047cb10ad62afc05. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/BK2TD2400005.
Prazer, Choro e Decepção (feat. Raphaela Santos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eda497c17b61babed193b9ae2d3eb8da17c1d7152bdc9214fa73933d709fb9a. 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/BC5192400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e8b0b83fb5df5fad5d65dcf3db05e929ad034ec7fdc6aeb7a2e1b768b57440e. 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/BK4DA2463054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2191952fc53e2fb5fd8516107b20cd91277b3184d7acb003629e48b133f40143. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/BK4DA2513254.
De Fortaleza Pro Norte, Do Norte Pro Brasil
Picada Da Cobra/ Quatro Pé/ Briga No Forró/ Pode Vim Mulher - Pout-Porri
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f6f02ff9512e697c75df9b837897a721f8e5796025a9034e8f2e4ce0bbaec3a. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QZYFZ2508003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5444fea2cd0990739521d15b4f20b23e70a9acf1bbb515d3e9003353019466cc. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/QZYFZ2508004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1f4e528f3b39f8887f79e6841da96d8e7c7c1c655093fd1656c98908eb5b915. 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/QZYFZ2508006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb30ef33fb5079f1f1bee6a38ef06d30d9e4d50694e898d51155420c7b6027334. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZYFZ2508009.