Izzy is a common nickname for the given names Israel, Isaac, Isidor, Isidore, Isadore, Isidora, Isabel, Isobel, Isabella, Isaiah, Issam, etc. Izzy, Izzie, Issie, Issy, Isy or Izy may refer to: Peopl
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ad8fc7ca746cce462ac688ede15c32e96a4f3f675ed1cc62a02d23811661d5. Chain 2 (Bitcoin): anchored in block 953694 (2026-06-14T21:38:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6ef5b9e2-b260-4804-80b5-8587b245d6e3.json and https://artists.proofprofile.net/proofs/artist/6ef5b9e2-b260-4804-80b5-8587b245d6e3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).