Mindru Katz (; 3 June 192530 January 1978) was a Romanian-Israeli classical pianist. Biography Katz was born to Jewish parents in Bucharest in 1925. He was discovered as a child prodigy by the noted
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 0x3475edb0be8a31e8fba48b082272b1ed9e5cbfb34d37d81930ac71e5bb584a8a. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c2f4da59-13e3-4986-8c6e-960894e196da.json and https://artists.proofprofile.net/proofs/artist/c2f4da59-13e3-4986-8c6e-960894e196da.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Legendary Pianist Mindru Katz Plays Johann Sebastian Bach
The Legendary Pianist Mindru Katz Plays J. S. Bach
Mindru Katz Plays Prokofiev & Khachaturian
The Legendary Pianist Mindru Katz Plays Frédéric Chopin, Vol. 1
The Legendary Pianist Mindru Katz Plays Concert Favorites
The Legendary Pianist Mindru Katz Plays French Master Works by Fauré, Debussy and Ravel
Mindru Katz Plays Concertos by Mozart & Chopin
The Legendary Pianist Mindru Katz Plays Concert Favorites: Haydn, Beethoven, Brahms, Liszt
Mindru Katz Plays Beethoven, Shostakovitch, Enesco and Chopin
The Legendary Pianist Mindru Katz in Live recordings of Concertos by Liszt and Tchaikovsky
Mindru Katz Plays Robert Schumann - Live
Robert Schumann: Scenes from Childhood & Fantasie Op. 17
Mindru Katz Plays Concertos by Mozart & Beethoven
The Legendary Pianist Mindru Katz in Never-Before-Published Live Recordings
Mindru Katz Plays Piano Concertos by Schumann & Grieg
Passion & Power: Mindru Katz Plays Beethoven & Brahms, Vol. 2