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 0x70534945016de227bb2381b648ce149ec493ecb1b96d59ed4c2ffc4342d74ee7. 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/c81f04d2-a2b9-48d3-8e9f-f5b5898dbe92.json and https://artists.proofprofile.net/proofs/artist/c81f04d2-a2b9-48d3-8e9f-f5b5898dbe92.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Tudo Que Acontece na Treta (feat. Mc Rodrigo do CN & Mc Saci)
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 0xf004b295977f3bed97218fb52b2c05599b898e1943c4eb91e5aa8642d2de3efe. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES06F2301123 — a six-check JSON result.
Nessa Virada do Ano Vamos Fazer Diferente
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed15c7525335da3d9a91ebf8e875a8ce20ce02de849ab3bb611dd08bb55397f7. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES06F2301146 — a six-check JSON result.
Ela Chegou na Minha Treta (feat. MC MR BIM & MC Luiggi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a18f17e1717dc4c6fb9e54db39f815c0705914cb85ecc64cfbccd0648cb81c. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES06F2401549 — a six-check JSON result.
Novinha do Tik Tok o Desafio Foi Lançado
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f5b16b02fb29b2dcd541cb21d0364deb7ea24eca71c86c7429f059cd099c08. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES06F2401894 — a six-check JSON result.
A Solução É o Nosso Nome Problema É o Nosso Vulgo
Foi Toda Princesa Lá Pra 17 (feat. Mc Rd & Mc Vitorioso)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe634aa8f0e5e5b681ec32a76454b28316b7c34c19905c4ae24fdc8fb5925a48d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES06F2401989 — a six-check JSON result.
Puto Sem Vergonha (feat. Mc Rodrigo do CN)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa01ca8d7c93d68a94f2f09d53f9f30a62f12a15829911eac59a3568f92d7bd02. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES06F2401990 — a six-check JSON result.
Botei uma Bala Boa uma Bala Wue Bate a Onda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40381153d2ba85057ceb82c765efe3055a992ee00cfbf62aeb6dba3eaa78b262. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES06F2402877 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d1efcebff05904618aa8591464c6e9af603d89c5fd7122a2d42975eb7e894fb. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES06F2503348 — a six-check JSON result.
Eu Caçava as Puta, Agora as Puta Que Me Caça
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e558821a5bcf7699e1e315aedc4a2771de7be744776bb3764f21fe9353b0134. Chain 2 (Bitcoin): anchored in block 958647 (2026-07-19T02:36:14Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES06F2504137 — a six-check JSON result.