Lou Stein (April 22, 1922 – December 11, 2002) was an American jazz pianist. Born in Philadelphia, Pennsylvania, Stein joined Ray McKinley's band in 1942. He played with Glenn Miller when the latter
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 0x66259d15a93a7476bcc121b50637c298b56be14636c7b5f017152a40559cfd64. Chain 2 (Bitcoin): anchored in block 953958 (2026-06-16T14:52:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/268db268-a7e7-461c-84c3-5aaaada98870.json and https://artists.proofprofile.net/proofs/artist/268db268-a7e7-461c-84c3-5aaaada98870.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).