Hilde Konetzni (March 21, 1905 in Vienna – April 20, 1980 in Vienna) was an Austrian operatic soprano, based largely at the Vienna State Opera. She was particularly associated with Wagner roles, espec
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 0xe72da556532a7bd750edac4149aff6789fb5bde095c5e6d1198c99377840b84b. Chain 2 (Bitcoin): anchored in block 954689 (2026-06-21T10:35:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e2042d6c-3b50-482f-b09f-7170a1843b4a.json and https://artists.proofprofile.net/proofs/artist/e2042d6c-3b50-482f-b09f-7170a1843b4a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Eugen Onegin staring Dietrich Fischer-Dieskau
Johann Strauß II: Der Zigeunerbaron (excerpts) - "Operetta Highlights"
Lebendige Vergangenheit - Hilde Konetzni
Millöcker: Der Bettelstudent (excerpts) - "Operetta Highlights"