Gerhard Schmidt-Gaden (born 19 June 1937) is a German conductor, especially a choral conductor, and an academic teacher. He founded and conducted the Tölzer Knabenchor. Life Born in Karlovy Vary, C
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6afd7e104ae2dd7ba11a96154a375954555458bf611166cdb064fbf30c440fb. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2acf42ad-04c9-4d77-b3b9-90979459961d.json and https://artists.proofprofile.net/proofs/artist/2acf42ad-04c9-4d77-b3b9-90979459961d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabea16c64b46800c0298380e996c01fa7a664873174d0c2150fd320f2404e7fc. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USB8U1035283.
Britten: War Requiem; Spring Symphony; 5 Flower Songs; Hymn to St. Cecilia
Carmina Burana / Fortuna Imperatrix Mundi: "O Fortuna"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501d43b3cb0fe959e2a171f35269657d9f8d7515e2643cde221a01d1f41fb6af. 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/DEN961030401.
Le nozze di Figaro, K.492: Act II: Voi che sapete
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e038358326b91d6cbb587c29c266f500f4461dfc8ada0a3e3f18dfcf69d1b3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBARU0400053.
Concerto for Clarinet and Orchestra in A Major, K. 622: III. Rondo. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71d21a346bd74148038c2ea01e442b00e83243dc14c096935fd2d4e2f31871a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USBC19400330.
Pachelbel: Canon and Gigue for Three Violins and Continuo in D Major: Canon
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdda45babb664adcd45d30dcdee6d751732feae42ce12d1cf40cb9df7f4652193. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBAYC9203528.
Christmas Festive Concert - Bach, J.S. / Handel, G.F. / Praetorius, M. / Manfredini, F.O. / Mendelssohn, Felix / Gabrieli, G.
Claudio Abbado - The RCA and Sony Album Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d7d684d4921d236288ad0790fa3bbf88cc0be9515dfba4f1edbff632ad3c1c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USBC19100211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaba7b84b3c94a2253a3c627dc509d634d59da7f69144942ff10feef195cc38a. 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/USBC19100216.
Angel Voices: The Boys' Choirs Christmas Celebration
Choral Music (Ave Maria Choruses) - Bach, J.S. / Gounod, C.-F. / Mendelssohn, Felix / Schubert, F. / Bruckner, A. / Pergolesi, G.B.
Schutz, H.: Kleiner Geistlichen Concerten
Schutz, H.: Kleiner Geistlichen Concerten, Part Ii
Choral Music (Sacred) - Bach, J.S. / Schubert, F. / Zelenka, J.D. / Schein, J.H. / Handel, G.F. / Schutz, H. / Bruckner, A. / Schubert, F.
Christmas Choral Concert - Handel, G.F. / Mozart, W.A. / Bach, J.S. / Praetorius, M. / Gruber, F.X. / Bach, J.C.F. / Adam, A.
Kein schöner Land - Deutsche Volkslieder
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59031872e3268753d0e21f763557e580ca5ea5a242900605f3a269606a6b8c52. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ES5110304826.
Macht hoch die Tür: Advents- und Weihnachtsmusik
Benevoli & Pitoni: Römische Mehrstimmigkeit
Palestrina: Missa "Tu Es Petrus" & Motets
Guillaume Dufay: Missa "Si la face ay pale"