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 0x33055ddfe8ccf82c2f25f3b7088ca188e6f36ecdb82913d276c5b5ef5687f35c. 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/b571e850-c311-4b9c-91c7-6a686779ff21.json and https://artists.proofprofile.net/proofs/artist/b571e850-c311-4b9c-91c7-6a686779ff21.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Roda de Samba, Tirando Onda por Aí (Ao Vivo em São Paulo)
Água na Fogueira / Desengano / Deixou Saudade (Ao Vivo)
O Que Nego Canta Tirando Onda Por Aí (Ao Vivo)
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 0x44091b768bf2547b62b6905ea2e53fb60b64a0063ae92d24107286aff2e95a74. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/FR2X42218800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2656b4fa37f94b704f895e5feae7a56669944ffeba425c2c7033b8c9fb632812. 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/FR2X42218801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d582c175131c74e30259bf0cfae2e394d365bbc3672fb53580e5276f964f6e0. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/FR2X42218802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac3bd51495b2265281a0d2cd977db09f9ea9ba0ceb7d04828f6c3f0140ddd0c8. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/FR2X42218803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6e5234ee42a1725ae38d7070dd6077b1d1a526897fe20f2d216178e2e4ffd9. 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/FR2X42218804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fbda4e8eef46b341fedec3078a391faf0f3c961a38617bad08358575f293f10. 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/FR2X42218805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe49caa890d6ba9a58769b5ec20ab1814f61a552411c872211a8705b48bf49dff. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/FR2X42218806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f25a79700d3d4dd35d71c3199d3c96b5aa69101e3cbc8bf27b1070eb19f860b. 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/FR2X42218807.
O Que Nego Canta Tirando Onda por Aí, Bloco 2 (Ao Vivo)
O Que Nego Canta Tirando Onda por Aí, Bloco 3 (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad8d0955ab408697f2d4d6ee5ee328556e7ad1803e44518620ff9a0768113232. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QZGLS2221592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5339a8858423979e285c45ec8d06978d26d7b9216565aa8df1f049b5c82c4e6c. 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/QZGLS2221590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf38bd7f7d2cd7c88ec71db849f2c2257f7381eaea4c3b54c074a854914f84a3. 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/QZGLS2221591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f681f5df64344ba2577d63ea97a72aac9b267cc0626569f715d2b57cd120322. 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/QZGLS2221593.
O Que Nego Canta Tirando Onda por Ai, Bloco 4 (Ao Vivo)
Oque Nego Canta Tirando Onda Por Ai (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c0c853734a992de39c964996938d6ca53add49ebd5f50e4cf56e26717094c7c. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/DGA062383298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5389886436360e67bcadd5d01d2d3e294bfa2a775b63c0fad03bea62affe87. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/DGA062383299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d8687aea1b536b03cfddc61460af0374c2ae1bf1a39d08b7a9946b148c2f6b. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/DGA062383300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf887d4447cc22aa41b9d825da5008031542df78adabbd684b0afc6bbfa1d39b2. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/DGA062383288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fbdb1ef5c649f4e6f9832f8d8a4e0104612d5b8ae068627d4f8014a481b1354. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/DGA062383289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x074f4dbf77e7064f99803e824ee8672f018c0bf4c0c71a0bbf55afb3ab74d6aa. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/DGA062383290.
Sabor do Teu Beijo / Velho Amor / Pra Gente Se Encontrar - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87d8b02bb1bd3c109c9b5d56eb1028e000d9e44b145b37d65bbeb24fc8ed8aaa. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZTVM2376159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3063a5d710b68932f34ac1900d2327038d5f8af56758bf066177bd42bd0492b6. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T08:32:30Z), 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/QZTVM2376161.
Nem Pensar / Combinado / Desejo Me Chama - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96ddffff0040fa19f1063daacbb300af0f6d80a47671d0eaa05d1419304612ec. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T16:28:12Z), 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/QZTVM2376168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec757c894e8565a88aececac57a57ef35724a20c25d730a35f65c55433675dc. 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/QZTVM2376169.
Gamei / Essência da Paixão / Mande um Sinal - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc9b98c2fe7f3ab19c96b02adadb92dff311a0c343cf9798d88f8dd7cc01d313. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/QZ5AB2463703.
Problema Emocional / Volta de Vez pra Mim / A Vida Traz um Novo Amor - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba1c18b83b6812b1868a99c68bf4abed339a9e12799c24db59c3cbe02d023694. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZ5AB2463700.
Meu Jeito de Amar / Te Amo Como Nunca Amei Ninguém - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x754b2aee156d54b0699c2ac77662877540c3599d3a6f62f69d68318e732a15c9. 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/QZ5AB2463704.
Lado B do Tirando Onda (Autorais) [Ao Vivo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3fc7209537a31262a3459acadfb9c323fb5cfa64df63026545b5f706f3f305f. 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/BKU4H2400001.