Daniel Brel (born 1950 in Égleny) is a French composer, accordionist and bandoneón player.Robert Carl, Fanfare "There’s not much more I can tell you about Daniel Brel than that he was born in 1950, he
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 0x6a7d131f77d4935df3aacbbab5d3b028f17b938575e05740e54f09a70a5ae278. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9ff5f140-0a21-42bd-af28-a13fe0333d37.json and https://artists.proofprofile.net/proofs/artist/9ff5f140-0a21-42bd-af28-a13fe0333d37.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).