Eugeniusz Rudnik (28 October 1932 – 24 October 2016) was a modern Polish composer, electronics engineer and sound engineer and a pioneer of electronic and electro-acoustic music in Poland. Early life
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 0x52377f938ec890176ea790edfd08f9f0a5ab58ebea4d384bcea32f6632b4174d. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/955d2ad9-bbf4-445e-8b91-1ee1e659a043.json and https://artists.proofprofile.net/proofs/artist/955d2ad9-bbf4-445e-8b91-1ee1e659a043.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Eugeniusz Rudnik: Miniatury - Rozbiórka Domu Drewnianego (Interpretacje)
Eugeniusz Rudnik: Miniatury - Modlitwa Cyborgów (Tła)