Kari Lake Halperin ( Lake; ; born August 23, 1969) is an American political figure and former television news anchor who has served as the senior advisor to the United States Agency for Global Media
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 0x0c667405045012cf5672f05a2f4fbfa3ec4bdb2ec739533de853c9954246c437. Chain 2 (Bitcoin): anchored in block 954689 (2026-06-21T10:35:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e20f24c8-aa0b-4c2c-9f88-594c03fcc123.json and https://artists.proofprofile.net/proofs/artist/e20f24c8-aa0b-4c2c-9f88-594c03fcc123.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.