Kazen is a surname. Notable people with the surname include: Abraham Kazen (1919–1987), American politician from Texas George P. Kazen (1940–2021), American judge from Texas John A. Kazen (born 1964
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 0x7deaa1b3816804df065b781cc3580341445466a4f701840a6c0d661049c9078d. Chain 2 (Bitcoin): anchored in block 954139 (2026-06-17T21:12:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7fd2dafa-ba36-4861-9ccf-68745e6104f3.json and https://artists.proofprofile.net/proofs/artist/7fd2dafa-ba36-4861-9ccf-68745e6104f3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).