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 0x0693111107e8aff56fbeb7d406657435070b5ef8f74b802aba86b239ed4da917. Chain 2 (Bitcoin): anchored in block 953984 (2026-06-16T18:08:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2cfdb778-301c-4474-8880-16cb09459319.json and https://artists.proofprofile.net/proofs/artist/2cfdb778-301c-4474-8880-16cb09459319.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Caso Indefinido / É Com Ela Que Eu Estou / Recaídas (Acústico)
Caso Indefinido / É Com Ela Que Eu Estou / Recaídas - Acústico
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 0x916448c157887f1db2a15aea54c543dcc1a60e43638b3102c1006e8f50d05373. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/QZHZ32057074.
24 Horas de Amor / Evidências / Inevitável / Declaração de Amor / Passou da Conta (Acústico)
Liberdade Provisória / Três Batidas / S de Saudade (Acústico)
Efeitos / O Mundo É Tão Pequeno / Cor de Ouro (Acústico)
Leilão / Pode Chorar / Não Deixo Não / Pega Fogo Cabaré (Acústico)
Refém / Despedida / Lembranças de Amor / Rosas Versos e Vinhos (Acústico)