Serrat is a surname. Notable people with the surname include: Antonio Serrat (born 1995), Spanish triathlete Candela Serrat (born 1986), Spanish actress Fabienne Serrat (born 1956), French alpine
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 0x932ef2028f834139816d3ab08bfea2d3af618866f750231c3ba08bca2a1ab2fb. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/616292aa-296b-47e7-99b5-ea453f80999e.json and https://artists.proofprofile.net/proofs/artist/616292aa-296b-47e7-99b5-ea453f80999e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).