Emanuel Balaban (January 27, 1895 – April 17, 1973) was a pianist and free-lance conductor who taught at the Eastman School of Music and later at the Juilliard School.Birth date from U.S. Passport App
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 0x9d009ba19aa622817f45006ffd2ea15b6a321d51d717002a69940bdfbfe1d474. Chain 2 (Bitcoin): anchored in block 954115 (2026-06-17T15:44:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/76aa5ff8-8323-4b27-a214-4d560977dc6b.json and https://artists.proofprofile.net/proofs/artist/76aa5ff8-8323-4b27-a214-4d560977dc6b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).