Rudolf Christ (20 March 1916 in Vienna – 20 April 1982 in Vienna) was an Austrian tenor concert and opera singer. Christ began his career in 1939 as chorister in the Vienna Volksoper. He then studied
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 0x9838632225e1461d16127aa8deaade5902bf03bebb67bec7c67d44e58fa13794. 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/e1df89e7-f031-47cf-a4e8-55de40313842.json and https://artists.proofprofile.net/proofs/artist/e1df89e7-f031-47cf-a4e8-55de40313842.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kodály: Te Deum, Danses de Marosszék & Danses de Galánta (Mono Version)
Der Mond, Act I: "Vor Zeiten gab es ein Land" (Erzähler)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c8f2572e2bb878c17edf010fac839d24939e8366e3146b81e0afb67faf5c468. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEF161534801.
Richard Strauss: Les grands opéras - La discothèque idéale de Diapason, Vol. 7
Strauss Ii, J.: Die Fledermaus (The Bat) (Schwarzkopf, Gedda, Karajan) (1955)
Brothers Grimm's Fairy Tales in Operas: Die Kluge
Künneke: Der Vetter aus Dingsda, Ausschnitte (Mono Version)
Orff: Der Mond: "So brachte Petrus die Toten zur Ruh" (Erzähler)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6701371223c6b2f11d529a75a3288cc61dfc3a2217e78e6be8c7a1d2d202ae2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBAYC5700100.
Strauss, R: Capriccio, Op. 85, Scene 1: "Bezaubernd ist sie heute wieder!" (Flamand, Olivier)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54fdf8990ed17389b2be0460019d57dbeadd2f0ab69cbfa646392416bdff443a. 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/GBAYC0001403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6701371223c6b2f11d529a75a3288cc61dfc3a2217e78e6be8c7a1d2d202ae2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBAYC5700100.
Bach, JS: Jauchzet Gott in allen Landen, BWV 51: No. 1, Aria. "Jauchzet Gott in allen Landen"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e1ad72cf163fe2c6222c0825204f9eedff609c14b63be71f4b726f346bdb7b. 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/GBAYC9901960.
Glanzvolle Operetten: Die Czardasfürstin
Staatliches Wiener Volksopernorchester und Chor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce5914e321c78687d58fe3d0347920d4ec8295933fc2ecaa7099252b0b99e2bf. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ATB056600013.
Staatliches Wiener Volksopernorchester + Chor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa45b7170f7a24c0c62dd33049a595b6da3b3ef7b35b5ef9aee0e15b0b562f259. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ATB056600016.
Liebchen mich reißt es: Hurrah, man bleibt ja nur einmal
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb97e9bd92e60ae4009b9dfca3e9a5e3391665fe4ee92283febbb8476c4053598. 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/ATB056600017.
Orff: Carmina Burana; Die Kluge (Highlights)
R. Strauss: Salome (Clemens Krauss: Complete Decca Recordings, Vol. 8)
Wolfgang Amadeus Mozart: Credo Mass, KV. 257, Missa Brevis, KV. 275, 2 Masonic Cantatas
Oscar Straus: Der letzte Walzer (Konzertversion)
Die Geschichte des deutschen Schlagers 1
Ruthilde Boesch - Echo eines Sängerlebens
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf43f827135c3c5e39e82e39df5f16aeceb803bd3f2c25f06318a677a667e04e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ATMA40511827.
Legenden der Operette: Elisabeth Schwarzkopf
Es war einmal... Grimms Märchen in der Musik