Wolfgang Michael Rihm (; 13 March 1952 – 27 July 2024) was a German composer of contemporary classical music and an academic teacher based in Karlsruhe. He was an influential post-war European compose
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 0x88ec9f84381ee2c5154799f6837dd0414d6e7fea4b08d59b553a5d15a2f0579f. Chain 2 (Bitcoin): anchored in block 953762 (2026-06-15T08:21:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bb42fc9e-64dd-4d8c-a250-714dddf4351e.json and https://artists.proofprofile.net/proofs/artist/bb42fc9e-64dd-4d8c-a250-714dddf4351e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Rihm: 2 Other Movements, Abkehr & Schattenstück
Wolfgang Rihm: 11. Streichquartett - Interscriptum - Grave
Wolfgang Rihm: Jagden und Formen (Zustand 2008)
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa533919a8ddb2abee2d8b22bccd3f4497fa3036487f294ef52c10a891e71bf8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ141216010.
Wolfgang Rihm: Music for Violin & Orchestra, Vol. 2
Wolfgang Rihm: Music for Violin & Orchestra, Vol. 1
Rihm, W.: Quid est Deus / Ungemaltes Bild / Frau/Stimme (Rihm Edition, Vol. 4)
Rihm: Dis-Kontur / Lichtzwang / Sub-Kontur
Rihm: La musique creuse le ciel - Über-Schrift
Wolfgang Rihm: Sieben Passions-Texte für sechs Stimmen
Wolfgang Rihm: Passionstexte No. 1-7 (Kammerchor Saarbrücken: Ultimum)
Liszt Les Préludes, Schubert Fantasie, Rihm Walzer Klavier vierhändig
Wolfgang Rihm: Astralis & Other Choral Works
Rihm: Styx Und Lethe / Dritte Musik / Music for Oboe and Orchestra