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 0xceeaf4b0e3261721a435741da23077439ea5e01e1caf00ed0dc6d14708261c8f. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f00bbc7c-ee36-4eed-85bc-0c79dbfae995.json and https://artists.proofprofile.net/proofs/artist/f00bbc7c-ee36-4eed-85bc-0c79dbfae995.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Não Deixarmos Nossa Harmonia Cair no Chão (Remastered 2024)
Todos Mundo Manda Eu Ranja uma Mulher (Remastered 2023)
Garota Seja a Luz do Meu Mundo (Remastered 2019)
Garota Seja a Luz do Meu Mundo (Remastered 2024)
Todo Esse Obstáculo na Vida Agora (Remastered 2024)
Garota, Seja a Luz do Meu Mundo 2 (Live)
Nem Eh Gente Eh um Anjo (Remastered 2019)
Não Deixarmos Nosso Harmonia Cair no Chão (Remastered 2018)
Gosto de Quem Gosta de Voce (Remastered 2024)
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 0xc4b0a2f62f627dd3ed58b0b6b37d9afccfc66c7e0d057b00a458b1afc7b2fd7e. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/US98A2200007.