Zita Carno (April 15, 1935 – December 7, 2023) was an American pianist. She was the pianist of the Los Angeles Philharmonic for 25 years. Carno died in Tampa, Florida on December 7, 2023, at the age o
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 0x38a0fae9c5da2c4a287a13af989766a5758c22a0d646c93ad1f3d3ac660872a0. Chain 2 (Bitcoin): anchored in block 954025 (2026-06-17T00:32:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/38885d0e-16ba-40d3-a3f0-6ae7eef24961.json and https://artists.proofprofile.net/proofs/artist/38885d0e-16ba-40d3-a3f0-6ae7eef24961.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).