Raimundo Fagner Cândido Lopes (born in Orós, Ceará, October 13, 1949) is a Brazilian singer, composer, musician, actor and music producer. He is commonly known by the stage name of Fagner. Biography
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 0x03c57247d124a71302252cce9d6e52a5a12fa2059eee6562403e8ee94c45a2fb. 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/87919407-c135-4c2e-8ce5-636cc214e71d.json and https://artists.proofprofile.net/proofs/artist/87919407-c135-4c2e-8ce5-636cc214e71d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).