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 0x2cb0b27edea301ed30896ff8409f68a65ee8f2c5082fb7577e9d656abfc3ecae. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3cd3b9bd-d3c4-4f93-b990-035552949381.json and https://artists.proofprofile.net/proofs/artist/3cd3b9bd-d3c4-4f93-b990-035552949381.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tá Tendo Bailão - Vem Cavala (feat. DJ sati Marconex)
Final de Semana é Rave (feat. DJ Dozabri & Dj Sati Marconex)
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 0xbeb742a2f32ffc3bc53043e7fa38c25b77dae25b2303038c33dcca21f61f86b6. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:31:54Z), 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/QZEQU2045663.
Um Sabadão Desse uma Lua Dessa (feat. DJ Dozabri)
Set Pé na Areia X Revoada no Calçadão (feat. Mc Sapinha, MC Fahah, MC Bruno IP, Mc Maromba, DJ PBeats, DJ Paula Maldi, MC Buraga, DJ Jé Du 9, DJ Negritinho, MC Lari, Dj Olliver & MB Mexicano)
Acabou a Água 2 (Dá um Pouquinho de Leite?)
Acabou a Água 2 (Dá um Pouquinho de Leite?) [feat. MC Buraga]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e9f9da0796b28cb08955a68bf78eb051a7387c8743ff7d5d5daab3bb7e94621. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/BXKG22100404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc538468154b216ea655e3e8b644a6a59ae40695951123d5b6a80c47cdcfdc2. 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/BXKG22100407.
Traz uma Jack de Maçã (feat. Dj chiquete & DJ Gui JC)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3fd60c51672468e42fd6e45489312744bdb025210c5d1e76d6b5c01c059f4dd. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:08:03Z), 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/BCDMP2100046.
Aliança Tá no Bolso (feat. JC NO BEAT & DJ F7)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d4972d79a606e1f0d6b1175095ea5249e9e537140e9f2f132222f8026ab4677. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/BXKG22201065.
Montagem Piquizin da Marcone, Vem pra Marcone
Nao Sabe Qual e o Segredo no Baile do Ceu
Vem pra Ca pra Ruinha, Com Vestidinho Vermelho
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33e7f1ee61f5b1e22b7b17c362dcf39d5e1d0f760ab0f59bffa73982a401206c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BKF442400022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dd77a3608782e5cff98a05fc499f30d9dcbec48001feb2f695630cf0d577e7e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/BCLWS2501088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce7c56b41e7f87999064afb940685a0869e1f46b87cd6d1b374b7cc67c03153. Chain 2 (Bitcoin): anchored in block 960223 (2026-07-30T07:51:46Z), 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/BCLWS2501087.
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 0x275fa888deb8051004cd22602588b8c581b3f3601a7bc0e0b709f999c62b92b3. 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/BC3PG2206017.
Varias Novinha Me Ama / Sarrando na Glock
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d5afe7552bc939fbc7f44a83e37c2d85b56b9563698236515f070fdb5ac757. 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/QZEQU2046450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9010c823973f4d132c3151f22b6f0dd63db6c7021390fdc72bf053a31c2b7be8. 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/BCJT12400030.
LEITE ELA VAI TOMAR (feat. DJ João Marconex & MC Tio Bryan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7cca4ca1edd53a86786f257fde8a70b297fb4c6a0c937c75940f4e59daa26a9. 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/BCJT12400055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ae8e2dc764ef045679e7339b1cb26b3668b90048720ca22797c21c1402592c. 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/BKHYR2400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab4c333a820bfe1f6a0c3cb9db16923117eade1b1daedde398feb11c1e24256d. Chain 2 (Bitcoin): anchored in block 959138 (2026-07-22T17:02:57Z), 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/QZEQU2132560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x980960502b5b110dadbeca7b4962607aef9480f5a37c7fe7b83be97ca2adee13. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/BKHYR2400163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea07075e37fc70cd3d960ed417d6f0f6a71aadb75596f92d78b5c80f7c2b0c9. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/BC3PG2305946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc6fe0013fbe2cb37c18f7ba91aed5fc1fd449b2a3eaa74f3f9ae7013c75efb2. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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/BC3PG2402987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3487d8aef73521c5d25cf281f0ff25732b5c8e853a6ec969e73c24d244065af3. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/QZEQU2046451.