Manuel João Gonçalves Rodrigues Vieira (born 17 October 1962) is a Portuguese musician, painter, university professor and satirical politician. He is the vocalist of Ena Pá 2000 and Irmãos Catita, ban
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85c6473655ebaaea5be9344889d8f0513cd2edd39d7ce53ba782657a36030680. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f17b523f-7e92-43e9-8ef5-08ed55c7b129.json and https://artists.proofprofile.net/proofs/artist/f17b523f-7e92-43e9-8ef5-08ed55c7b129.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
O tempo das andorinhas - Cantigas de dor de corno
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a00283badbfa4a5c4b61a17f54c9b2532f1c56574d3ba8846d34c0d80fe689. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTES12406801.
Fado pessoano (feat. Manuel João Vieira, Boss AC, Ana Sofia Varela, Paulo Flores, Lura, Tcheka, Zé Ricardo, Manecas Costa, Luanda Cozetti & Ana Firmino)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64aa0740224e7d3ee0bfe51f518a4d9a39410afbd1cc9406f883246dace90014. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/PTEM11200244.