The Vienna Chamber Orchestra (Wiener Kammer Orchester, or WKO) is an Austrian chamber orchestra based at the Vienna Konzerthaus. History The WKO was founded in 1946, and its first artistic directors
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 0x1506575ee63944ef77b91986b0dfa40c56956142954b651ab815457867bc9ae0. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3c2f90cd-3c0c-400a-9b62-f074fdf123ed.json and https://artists.proofprofile.net/proofs/artist/3c2f90cd-3c0c-400a-9b62-f074fdf123ed.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Symphony No. 4 in F Minor, Op. 36: Iv. Finale: Allegro con fuoco
Polish National Radio Symphony Orchestra
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 0xa21c20723e1d3399974c669aa4b41802a01278d2632f7244d12189cd61ea58f5. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/HKI199317408 — a six-check JSON result.
Eugene Onegin, Op. 24: Act Ii Scene 1: Waltz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe29562b1e422298883e1714bf588f323536f7190d7376a18611139e9334186. 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/HKI199228513 — a six-check JSON result.
Swan Lake, Op. 20: Act Iv: No. 29. Finale
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x103b0e8fd0a752038f9cdaba97451771df522040da8f6cd46c4da60ba93800d8. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/HKI190201326 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbeab9bd79545b75dec2d30a3a28b7ac6973e715cc3c979eadda6c2ef827f13b. 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/HKI199318402 — a six-check JSON result.
Piano Concerto No. 2 in G Major, Op. 44: Iii. Allegro con fuoco
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6051fffadb488ee1da0eb8d52292b105caf0202abf4b9a6a1c272906588a6ae9. 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/HKI191601803 — a six-check JSON result.
Serenade in C Major, Op. 48: I. Pezzo in forma di Sonatina
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a33e5b8ef829013adf3ead7fc67c3bd750cd89c155c6c8c59b1271645650da. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/HKI199316901 — a six-check JSON result.
The Snow Maiden, Op. 12: Act Iii: Dance of the Tumblers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c438f8d74dbbcea843ac2ca055823553521fd68fada1049003b0e1ade11b31b. 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/HKI199619114 — a six-check JSON result.
Violin Concerto in D Major, Op. 35: Iii. Finale: Allegro vivacissimo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f165dd11aefdc24d5005c8698c63abe5456964079321d2386334fe1da54dc0a. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/HKI190637603 — a six-check JSON result.
Swan Lake, Op. 20: Act I: No. 4. Pas de trois: I. Intrada
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc3f071f9366d4966b79ede5d0516efcac1e89aef74cefb9d6c0696f49eb03f9. 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/HKI190201205 — a six-check JSON result.
The Sleeping Beauty, Op. 66: Act I: The Spell: Valse
Košice Slovak State Philharmonic Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5cafd76735710f407c1cd5f364db9e25f5333dce543af2f0d546d9f91f44d70. 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/HKI199340115 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5542c16283b4ea476c9677766d2a391527d55e449889201b3cecaaf8b3bcd3f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199339701 — a six-check JSON result.
The Sleeping Beauty, Op. 66, TH 13: Introduction
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f71fea06c0791ccdb57b5f0d50c456aa238c1118cc06c8fd9a2dcc3e25a49c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1701623 — a six-check JSON result.
The Sleeping Beauty, Op. 66, TH 13: Marche
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eaee85243433d1c7ec4cf69e2c9c22ff4c9d34dc399393bb7aab95e82202950. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/USB8U1701624 — a six-check JSON result.
The Sleeping Beauty, Op. 66, TH 13: Scène dansante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4091fe71e6538a5ecba0919f1dbabfef6a5bf6b6ac639f47b2ca14a35c02ee01. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1701625 — a six-check JSON result.
The Sleeping Beauty, Op. 66, TH 13: Valse
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7257439109968c9cb9b7ba0c36f4d1adad308cded8bf0a67086ee80d21b4404. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USB8U1701626 — a six-check JSON result.
The Sleeping Beauty, Op. 66, TH 13: Adagio de la rose
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38948c92f06a070ac629954d5ba1fecefa397049c5818c58e2e9e8263414419. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1701627 — a six-check JSON result.
The Sleeping Beauty, Op. 66, TH 13: Wedding March
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x489650d5c7225a6eccb8f4d5fd094eb821525ca3c255bed67d498cc8a43a0b31. 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/USB8U1701628 — a six-check JSON result.
The Sleeping Beauty, Op. 66, TH 13: Polacca
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57d93545f08b270a3439f115ea405c8f5d60e281292f680ebb45a5a235993bfe. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USB8U1701629 — a six-check JSON result.
Serenade for Strings in C Major, Op. 48, TH 48: I. Pezzo in forma di sonatina
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa854f92dabfefa6da1190a3e81b55a73d050619928f8fe3ebfd3e24eedaa3d05. 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/USB8U1701630 — a six-check JSON result.
Serenade for Strings in C Major, Op. 48, TH 48: II. Valse
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59155765359704ce37b4c6597ca14f833a4cea606365634359a40dcb67dd4aae. 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/USB8U1701631 — a six-check JSON result.
Serenade for Strings in C Major, Op. 48, TH 48: IV. Finale (Tema russo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe22fb802bf64b40eace697b7d5dc0e039e2ff95612cbb6476762352b84cad24b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1701633 — a six-check JSON result.
Der Schauspieldirektor, K.486: Ouvertüre
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x441272a6032c45ec16135da8fc8874fee8875856ae0974458655b4dbeeecd049. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBF079010091 — a six-check JSON result.
Der Schauspieldirektor, K.486: Da schlägt die Abschiedsstunde
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f4aa6e863c838ceac3e1e57995a3c252397fd0f707206122ad28bde8c147a5c. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/GBF079010092 — a six-check JSON result.
Der Schauspieldirektor, K.486: Bester Jüngling
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60dce1080379639fe87a4f39aa9b8435aebed933a46ecb6247726da02321fcc0. 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/GBF079010093 — a six-check JSON result.
Der Schauspieldirektor, K.486: Ich bin die erste Sängerin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f3daf1a29578196855d3dccd52d87c844338f111fa5ae97ba66a649a32d0daf. 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/GBF079010094 — a six-check JSON result.
Der Schauspieldirektor, K.486: Jeder Künstler strebt nach Ehre
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0cac6726e850a99d0593e420b103f4292ad0cdacd74e46c592463c1a9724b8c. 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/GBF079010095 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d178fd9940290f4b6f337c4c1352346d1accf48f5f0dd8bdef82a4ea983272. 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/GBF078010790 — a six-check JSON result.
Rinaldo, HWV 7a / Act 2: "Lascia ch'io pianga"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f20fba75c54a4566680281841198efb145a364012fd6be50c6f122f7506a88. 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/NLA508809502 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf832121bfd77a81e359fe3f66212f11cda0fc4b3361765eee3c60219bdece30a. 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/NLA508809504 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x594b117d4e90e70dc463d283b4a6ab8bef11834b2670522c64059cf863f6fd9b. 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/NLA508809509 — a six-check JSON result.
Mozart: Clarinet Concerto; Symphonies Nos. 21 & 27
Symphony No. 27 in G Major, K. 199: I. Allegro
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Symphony No. 27 in G Major, K. 199: II. Andante grazioso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f514e1f7c68384a48988bc2d91c051f7d0dcc085f4e2a9378cb8451679a0a6f. 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/FRZ148906020 — a six-check JSON result.
Symphony No. 27 in G Major, K. 199: III. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e2a82107f19fce39e3bc8ddbdd6561d373b0740bd9b29a66330c72775c68cf. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/FRZ148906030 — a six-check JSON result.
Clarinet Concerto in A Major, K. 622: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x856e58a780826bd6065a37eb3ffb26d79126f840e8026fa76de358848ccb1748. 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/FRZ148906040 — a six-check JSON result.
Clarinet Concerto in A Major, K. 622: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37d002798f1950029793c013b660a2769043b0f9cdf568b18cd6bbfbb08b7f0d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ148906050 — a six-check JSON result.
Clarinet Concerto in A Major, K. 622: III. Rondo (Allegro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c263596bffa3be6b8733612a8650c68765ebded6de67c474a28fb9f4302686. 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/FRZ148906060 — a six-check JSON result.
Symphony No. 21 in A Major, K. 134: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb4de1f27791226a2d33c6775130ed030aad38a4f6decaa2badd0cfe8b5edb86. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/FRZ148906070 — a six-check JSON result.
Symphony No. 21 in A Major, K. 134: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd45fbeb5ea38fada9fc3ada543114584a2c13baf1600607f0451ab398dd7d5. 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/FRZ148906080 — a six-check JSON result.
Symphony No. 21 in A Major, K. 134: III. Menuetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfadce63f1633514135dfd6d3ec4d230690b525177fddb6ab0f4162f75032b173. 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/FRZ148906090 — a six-check JSON result.
Symphony No. 21 in A Major, K. 134: IV. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1764ae0e9d21206ad317a911ec521933e860de346378b94f1bc543d88ce84144. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/FRZ148906100 — a six-check JSON result.
Haydn: Symphony No. 43 - Mozart: Piano Concerto No. 12
Così fan tutte / Act 1: "Temerari! Sortite!" - "Come scoglio!"
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Così fan tutte, K.588 / Act 2: "Ei parte...Per pietà"
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Così fan tutte, K.588 / Act 1: "In uomini, in soldati"
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Le nozze di Figaro / Act 3: "E Susanna non vien!" - "Dove sono i bei momenti"
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Le nozze di Figaro / Act 4: Giunse alfin il momento...Al desio di chi t'adora
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Don Giovanni, K.527 / Act 1: "Batti, batti, o bel Masetto"
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Don Giovanni: In quali eccessi... Mi tradi
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Davidde Penitente, K.469: 3. Aria: "Lungi le cure ingrate"
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Paganini / Arr. Príhoda: Capriccio on "Nel cor più non mi sento", Op. 38
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Tchaikovsky: Souvenir d'un lieu cher, Op. 42: III. Mélodie
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Wieniawski : Polonaise brillante No.1 in D minor
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Paganini: Sonata a preghiera, MS 23 "Mosè Fantasia"
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Wieniawski : Variations on an original theme Op.15
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Sarasate: Spanish Dances, Op. 23: II. Zapateado
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Tchaikovsky: Valse-scherzo, Op. 34 (Version for Violin and Piano)
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Ernst: Grand Caprice on "Der Erlkönig", Op. 26 (After Schubert) [Arr. Ernst]
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Prokofiev: Sonata for Two Violins in C Major, Op. 56: II. Allegro
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Le nozze di Figaro, K. 492 / Act 1: "Non so più cosa son, cosa faccio"
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Le nozze di Figaro, K. 492 / Act 2: "Voi che sapete"
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Così fan tutte, K. 588 / Act 2: "E amore un ladroncello"
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Don Giovanni, K. 527 / Act 2: "Vedrai, carino"
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Le nozze di Figaro, K. 492 / Act 4: "Giunse alfin il momento... Deh, vieni, non tardar"
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La clemenza di Tito, K. 621 / Act 1: "Parto, ma tu ben mio"
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La clemenza di Tito, K. 621 / Act 2: "Deh per questo istante solo"
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La clemenza di Tito, K. 621 / Act 2: "Ecco il punto, oh Vitellia" - "Non più di fiori"
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Ch'io mi scordi di te... Non temer, amato bene, K. 505
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Vienna Chamber Music: Ludwig van Beethoven & Franz Schubert
M. Haydn: Symphony No. 21 - J. Haydn: L'infedeltà delusa - Dittersdorf: Oboe Concerto
Beethoven: Symphony No. 9 in D Minor, Op. 125 "Choral" (Live)
Classical Selection - Johann Strauss II: Waltzes from Vienna
Mimi Coertse / Margarete Sjöstedt / Wiener Kammerchor / Wiener Kammerorchester / Felix Prohaska play: Johann Sebastian Bach: Magnificat, BWV 243
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Wie lieblich sind die Boten aus dem Oratorium "Paulus"
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Johann Strauss I: Sorgenbrecher - Walzer und Polkas
Eduard Strauss: Mit Dampf (Walzer und Polkas)
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Haydn - Symphonies - Morning - Noon - Evening
Haydn - Missa Brevis - St. Joannis De Deo
Missa Brevis No. 7 In B Major St. Joannis De Deo - Kyrie
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Missa Brevis No. 7 In B Major St. Joannis De Deo - Gloria
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Missa Brevis No. 7 In B Major St. Joannis De Deo - Credo
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Missa Brevis No. 7 In B Major St. Joannis De Deo - Sanctus
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Missa Brevis No. 7 In B Major St. Joannis De Deo - Benedictus
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Missa Brevis No. 7 In B Major St. Joannis De Deo - Agnus Dei
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Missa In Tempore Belli No. 9 In C Major - Kyrie: Largo, Allegro Moderato
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Missa In Tempore Belli No. 9 In C Major - Gloria: Vivace, Adagio, Allegro
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Missa In Tempore Belli No. 9 In C Major - Credo: Allegro, Adagio, Vivace
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Missa In Tempore Belli No. 9 In C Major - Sanctus: Adagio, Allegro Con Spirito
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Missa In Tempore Belli No. 9 In C Major - Benedictus: Adante
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Missa In Tempore Belli No. 9 In C Major - Agnus Dei: Adagio, Allegro Con Spirito, Ruhig, Piu Presto
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Beethoven: Triple Concerto & Trio in D Major
Tchaikovsky: Serenade for Strings - Souvenir de Florence
Serenade for Strings in C Major, Op. 48 TH 48: II. Walzer
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Mozart: Piano Concerto in E-Flat Major, K. 482 & Piano Concerto in C Major, K. 503
Tchaikovsky: 1812 Overture, Op. 49, TH 49
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Souvenir de Florence, Op. 70 TH 118: I. Allegro con spirito
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Souvenir de Florence, Op. 70 TH 118: II. Adagio cantabile e con moto
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Souvenir de Florence, Op. 70 TH 118: III. Allegretto moderato
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Souvenir de Florence, Op. 70 TH 118: IV. Allegro vivace
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Bruckner: Mass in E Minor, No. 2 & Three Mottets
Josef Strauss: Wiener Leben (Walzer Und Polkas)
Johann Strauss II: Gruss an Wien (Walzer Und Polkas)
Mozart: Piano Concerto No. 20 in D Minor, K. 466 & Piano Concerto No. 26 in D Minor, K. 537 "Coronation"
Bach: Ein feste Burg ist unser Gott, BWV 80 (Mono Version)
Concertos pour hautbois, vol. 2 (Mono Version)
Serenade for Strings in C Major, Op. 48: II. Walzer
101 Classics - The Best Loved Classical Melodies
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Wolfgang Amadeus Mozart: Schatten ung licht: Chapter 1: Wunder der Natur (1756-1765)
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Wolfgang Amadeus Mozart: Schatten ung licht: Chapter 2: Salzburgs Glanz und Wolfgangs Gloria (1765-1769)
Südwestdeutsches Kammerorchester Pforzheim
Carl Philipp Emanuel Bach Chamber Orchestra
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Wolfgang Amadeus Mozart: Schatten ung licht: Chapter 3: Cavaliere Amadeo Wolfgango (1770-1773)
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Marschmusik zum Reiten (Military marches for horseriding)
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