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 0xe9d5389aa57694de6918ecbd3a5944c5e7650379c782d0e6e1893387ddac8773. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c80f2238-16e8-431e-85d9-a93d253374e2.json and https://artists.proofprofile.net/proofs/artist/c80f2238-16e8-431e-85d9-a93d253374e2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Te Quero pra Mim / Dois Corações e uma História
Só da Você na Minha Vida / Tatuagem / Ai Já Era
Isso Cê Não Conta / Virou Paixão / 10 Segundos
E Daí / Mete Sua Boca na Minha / Alô To Num Bar
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 0x1a7741231251987d3b4efe8d0137fcf7ce316b831ccbbec43c056ea9ee39e2de. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZNJV2083987.
Tem Que Me Prender / Quatro Estações / Inventor dos Amores
A Dor Desse Amor / Minha Estrela Perdida / Frio da Madrugada (Ao Vivo)
Deixa / Te Amar Foi Ilusão / Bijuteria / Por um Gole a Mais (Ao Vivo)
Caso Indefinido / Coisas Esotéricas / Seu Astral (Ao Vivo)