thumb|Othmar Schoeck (1917) Othmar Schoeck (1 September 1886 – 8 March 1957) was a Swiss Romantic composer and conductor. He was known for his considerable output of art songs and song cycles but also
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 0x918cd865ec89769a5d82cc69b05cb65f08aaaaf0e210e7405b8e39b8a92050e3. Chain 2 (Bitcoin): anchored in block 954008 (2026-06-16T21:31:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/33ca8714-3f96-40a1-9c0c-f8f04f4c8ca5.json and https://artists.proofprofile.net/proofs/artist/33ca8714-3f96-40a1-9c0c-f8f04f4c8ca5.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
NACHHALL - Othmar Schoeck Orchesterlieder
Othmar Schoeck: Das Schloss Dürande, Op. 53
Schoeck: Sommernacht, Sonate für Bassklarinette, Penthesilea Suite & Besuch in Urach
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 0x7447fb7ba8f21303b5f39704d8397ab4286711de6f492376735598c22bbebcdc. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM12107984 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0009cc3a3b03fa232314e22217842445316bc815e02e40c26ce01c09240fa393. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM12107985 — a six-check JSON result.
Othmar Schoeck: Vom Fischer un syner Fru, Op. 43
Othmar Schoeck: Lieder - Complete Edition, Vol. 10
Glazunov & Schoeck: Works for Violin and Orchestra (Hyperion Romantic Violin Concerto 14)
Othmar Schoeck: Lieder - Complete Edition, Vol. 3
Othmar Schoeck: Lieder - Complete Edition, Vol. 7
Othmar Schoeck: Lieder - Complete Edition, Vol. 5
Othmar Schoeck: Lieder - Complete Edition, Vol. 8
Othmar Schoeck: Cello Concerto op. 61 & Suite in A flat major op. 59
Othmar Schoeck: Lieder - Complete Edition, Vol. 6
Othmar Schoeck: Lieder - Complete Edition, Vol. 2
Othmar Schoeck: Lieder - Complete Edition, Vol. 9
Debussy: 3 Chansons de France, CD 115, L. 102: No. 3, Rondel. "Pour ce que Plaisance est morte"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x492ed69f806c11cd6e67360b5fc04e2de2e7424a41c03ea6fde1a714b60abffc. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0000494 — a six-check JSON result.
Debussy: 3 Chansons de France, CD 115, L. 102: No. 1, Rondel. "Le temps a laissé son manteau"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x630d38e1d071ca21a9fbfa29f3ecc844202845694fc055cd6aa75b6db57106bd. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0000495 — a six-check JSON result.
Milhaud: Poèmes juifs, Op. 34: No. 8, Lamentation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4760b068d37e5bfdea09d016b08e53791ad7aff3ed4fd8e86b2e903e031a5ffb. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0000497 — a six-check JSON result.
Mahler: Des Knaben Wunderhorn: No. 9, Wo die schönen Trompeten blasen (Version for Voice and Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfc43d76e616086f0023160d3b714bf06489ba0c5620c242b6d026d1fecc7518. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0000498 — a six-check JSON result.
Schoeck: 8 Lieder, Op. 17: No. 4, Ein Irrsal kam in die Mondscheingärten
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4aa730f3fd9a5138c64f4b17174ca51404f5dbe249d42bc6d1b9ae5da135353. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0000499 — a six-check JSON result.
Pfitzner: 4 Lieder, Op. 32: No. 1, Hussens Kerker
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c3546c776ed06e1447980da0e0f7ce422dcb5b4f628549f1755f2dbc11317b8. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0000501 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8935ec2178260ec0a34e9fb3b06d63f0bd40da1851dad91fdc47a87be2c30ec. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0000502 — a six-check JSON result.
Reutter: Ehrler-Zyklus I, Op. 64: No. 5, Johann Kepler
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1919ef38d422a5e840df8c7c097e95d8f2e9eb2feffe14999e58dadae66afa29. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0000503 — a six-check JSON result.
Fortner: 4 Gesänge nach Worten von Hölderlin: No. 3, Abbitte
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a3c4842df253f43f18ec3684c9455209dd06c60bd96bf32d74b6175cdf2651. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0000504 — a six-check JSON result.
Fortner: 4 Gesänge nach Worten von Hölderlin: No. 2, Hyperions Schicksalslied
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd354c88b48e3541db857a515d83fdd01b1e2dc8fd1ef91b4b50b086cf8ed3de9. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0000505 — a six-check JSON result.
Bartók: 5 Lieder, Op. 15, Sz. 61: No. 5, Im Tale
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b3bebfe199db7cd0fb9382c2efb81114fc2516de39318c70694704435dd611e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0000506 — a six-check JSON result.
Blacher: Aprèslude, Op. 57: No. 1, Gedicht
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe23f56500bfef1c00523a9aa3a0062114e69e36f244d52160a5932adee5b3e9. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0000508 — a six-check JSON result.
Blacher: Aprèslude, Op. 57: No. 2, Worte
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f00cd765c8b14b8963dbe12e24d444f2d84b03905b6a63f501ae96d5a33e36. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0000509 — a six-check JSON result.
Fortner: Lieder nach Texten von William Shakespeare: No. 5, Lied vom Weidenbaum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x212aa7c4a5b31847484f3297ec83292bb0afb96307db6a0d8040cfab0a2970a7. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0000510 — a six-check JSON result.
Reutter: Meine dunklen Hände: No. 4, Lied für ein dunkles Mädchen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45cd07d1134d16340008eb1e49c0e472e9f00f8be49535842c3569963ef3faa4. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0000511 — a six-check JSON result.
Reutter: Meine dunklen Hände: No. 2, Trommel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x935ddde104623314256cfee613e88105753c3e7c8c5cbd5ef69315bb9a88640b. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0000512 — a six-check JSON result.
Mozart: Clarinet Quintet in A Major, K. 581 "Stadler": II. Larghetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c2a6a0a725db6036999e95c4e95e10c12d0b847615dd5bd47366dd2eedc19b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ119502960 — a six-check JSON result.
Othmar Schoeck: Lieder - Complete Edition, Vol. 4
Othmar Schoeck: Das stille Leuchten, Op.60
Othmar Schoeck: Nachhall, Op. 70 & Lieder nach Eichendorff und Hesse
Othmar Schoeck: Lieder, Complete Edition, Vol. 1
Schoeck: Notturno, Op. 47 & Wanderung Im Gebirge, Op. 45
Schoeck: Variations Sonata, Op. 22 - Violin Sonata, Op. 16 - Violin Sonata, Op. 46
Schoeck: Cello Concerto / Cello Sonata / 6 Songs Transcription
12 Eichendorff Lieder, Op. 30: No. 7, Nachklang (Arr. C. Poltera)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d2c791411b9d5f2c7f5217be4d3d737011181a35e076f7cc9c5235da7cb6ea1. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEP0797100 — a six-check JSON result.
Schoeck: The Three Violin Sonatas & the Albumblatt
Othmar Schoeck: Mit einem gemalten Band, Lieder
Othmar Schoeck: Violin Concerto & Horn Concerto
Othmar Schoeck: Lieder - Complete Edition, Vol. 11