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 0xa144c59d3f12f8a174de15d6a958f3961e97022d3dd1a95469d2dde972d7898d. 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/0a504191-565a-4e7a-9a6e-0dd4deb33093.json and https://artists.proofprofile.net/proofs/artist/0a504191-565a-4e7a-9a6e-0dd4deb33093.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Te Jurei Tudo & Te Dei Nada (Remix Piseiro)
Vem Morenin Satisfazer a Morena Aqui (Remix Swingueira)
Trepa Trepa Pula Pula (Remix Forrozinho)
10 Carros Guardados na Minha Garagem (Remix)
Você Quer Marretada do Thor (Remix Pagodão)
Baby Eu Tava na Rua da Água (Eletro Funk)
I Don't Know Why x Aquecimento Senta Senta (Remix Funk)
Te Maceto Depois do Baile (Remix Arrochadeira)
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 0x08a0fa6710325cfa77d561661d9ff52c76ff84ef301543cb46c9821e670f5388. 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/QZTB62487754 — a six-check JSON result.
Eu Tô Sozinho Eu Tô Solteiro Arrochadeira
CLONE Pensa Nos Fio Bonito que a Gente Vai Dar (Funk Remix)
Always Remember Us This Way (Remix Reggae)
Oh Garota Quero Você Só Pra Mim (REMIX PISEIRO)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x006fd6c34998b11450c398f151afc297607d21f4ab79327dad87f2d00c49bdd8. 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/QZWDW2505674 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc16e7ad2580b16edb89dcecc2119c64bbd4bc254f74316b53636750b8a1d6f6e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWDW2597592 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d890b113ea46499e1b03346b0aa12e5eb041e1f3f381fd7508fda626ff6d3f7. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T05:43:55Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZYFZ2500758 — a six-check JSON result.
MTG Peito PP Cintura P X Vai Sua Cavalona
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2653f7ffcd4aa0cb3d17ffbe5bc921732ea803cd497c042ccf806aa0d0129d. 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/QZYFZ2501241 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2bd80cc01d60b1fc287aaf5a32f9982938acd3c6ccb992203b76a36879ebec8. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZYFZ2503535 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd7b28acc8d3a43bab386d52c297c19c3a6c2baab84fd67ae6c37379474a585. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QZYFZ2504880 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ae55f3bf66dc90ccabfd66e605a726a23caf347eca682d0b083d327349a796. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IDA632527771 — a six-check JSON result.
Desliza (Ólhinho No Corpinho) Arrochadeira