Frai is a surname. Notable people with the surname include: Athina Frai (born 1976), Greek windsurfer Felicita Frai (1909–2010), Czech-born Italian painter See also FRAI Fray (surname) Frei (disambi
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 0xe7ae7be0260fb75d5b18bae706c2dcc49c7e3d4b344c753c66ce5850f942151c. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0791ddce-b300-496a-86f5-cc23b717fb4e.json and https://artists.proofprofile.net/proofs/artist/0791ddce-b300-496a-86f5-cc23b717fb4e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).