Stefan Askenase (10 July 189618 October 1985) was a Polish-Belgian classical pianist and pedagogue. Biography Askenase was born in Lviv, then known as Lemberg, into a Jewish family. At the age of fi
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 0x8c68ceec8470a0b5b7a62dec5f02cb8d571062b062b4d3f8123a3d5d53340f0b. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e8622aad-7d94-4e63-9970-563cde415a2a.json and https://artists.proofprofile.net/proofs/artist/e8622aad-7d94-4e63-9970-563cde415a2a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Une soirée romantique avec Liszt et Chopin (Mono Version)
Mozart, Schumann & Chopin: Piano Works (Live)