Sara Gazarek is an American jazz singer from Seattle. Life and career Gazarek was born in Seattle, Washington and moved to Los Angeles in 2000 to attend the Thornton School of Music at the University
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 0x4cb879e42ef6670004a7ea92ba8c6fbcc85a932034b63f4f28585fa5cc5a5de0. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/daacfda9-ce14-41c5-80b8-fc5664a75ee2.json and https://artists.proofprofile.net/proofs/artist/daacfda9-ce14-41c5-80b8-fc5664a75ee2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).