Georg Druschetzky (born Jiří Družecký; 7 April 1745 – 21 June 1819) was a Czech composer, oboist and timpanist. Biography Druschetzky was born Jiří Družecký in Jemníky on 7 April 1745. He studied obo
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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 0x55c15ccda7c4185742cc44c62feaf7bb898d857a78b4fe419bb3eed2eccdf8b4. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/afc2d7d7-ace5-4332-b25f-a40bf89ffc4e.json and https://artists.proofprofile.net/proofs/artist/afc2d7d7-ace5-4332-b25f-a40bf89ffc4e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
G. Druschetzky: Sei partite per Otto Fiati I Fiati Italiani
Druschetzky: Oboe Quartets in F Major / G Minor / E-Flat Major / C Major
Druschetzky: Divertimento for Basset Horn
Druschetzky: Works for Timpani and Orchestra
Bohr: Rondo Fresco Ungaria per corno di bassetto e ottetto di fiati