André Carlos Alves de Paula Filho (born 22 July 1961 in Recife) is a Brazilian lawyer and politician. He is regional chairman of the Social Democratic Party, a member of the Chamber of Deputies for Pe
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 0xcde88321a5955f3b38400d20682264df238704b15a12ed9666e4748c488af59a. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/923badc8-f2bc-46a9-86d3-63d88003c16a.json and https://artists.proofprofile.net/proofs/artist/923badc8-f2bc-46a9-86d3-63d88003c16a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).