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 0x2dc8843e131110bb5a232b9e31fe7f62a97e090316a1b7c3573aab3698005e77. 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/ffaf7380-a002-40f8-b619-a2859d6acb14.json and https://artists.proofprofile.net/proofs/artist/ffaf7380-a002-40f8-b619-a2859d6acb14.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Piano Concerto No. 5 in E-flat Major, Op. 73, "emperor": Piano Concerto No. 5 in E-flat Major, Op. 73, "emperor"
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 0x5f848ae64ac640416682d4ff8280a48fd96a73cb37241e9804c63bd187193af9. 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/HKI199213605.
Piano Sonata No. 8 in C Minor, Op. 13, "pathétique": Ii. Adagio cantabile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a336c4ee52cade43600e2a777968b19a63e8dc3d45d28f922e458be183dc4e7. 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/HKI199214302.
Cello Sonata No. 3 in A Major, Op. 69: Iii. Adagio cantabile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe3d7930067eff720e0492ca8de7df1f66e86907c9031993177e56c2a4d4717d. 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/HKI190229822.
Septet in E-flat Major, Op. 20: Ii. Adagio cantabile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d383d114a91e9cd48e510836a4bf2d64934a201d0aaad8698454f6b7302e487. 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/HKI199215602.
Piano Sonata No. 14 in C-sharp Minor, Op. 27, No. 2, "moonlight": I. Adagio sostenuto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae375756518e9df9b2ae0d94a4e5ec10916a0638d2f27ede3ae8676196e12203. 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/HKI199214304.
Piano Concerto No. 5 in E-flat Major, Op. 73, "emperor": Ii. Adagio un poco moto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae375756518e9df9b2ae0d94a4e5ec10916a0638d2f27ede3ae8676196e12203. 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/HKI199214304.
Violin Sonata No. 5 in F Major, Op. 24, "spring": Ii. Adagio molto espressivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5512613c47021052ebe88ea9e4de14434bf44029e3e6a5a6823f9a305ab19fb9. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199217802.
Sinfonia concertante in E-Flat Major, W. C41: II. Larghetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e2a3defa53555f38dc012db8e68b910c6f12b81208ae84fc008f6e20a5db8d. 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/USB8U1004149.
Symphonie concertante in C Major, W. C36a: I. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc32fd551e1ce08a19493c06820ff8ab1540b6305bfe2a56215fa4b991b69daae. 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/USB8U1004129.
Concerto a piu istrumenti in D Major, W. C35: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ece0c53b5a9cc36b99b0e846d03074061bd83bdcc9062e675fa04e5cc9c8b73. 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/USB8U1004140.
Symphonie concertante in C Major, W. C36a: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4669bc2cb824ff9a59fa681f61ad4612a15bf321e6a5fd0ea6218826e7de3cda. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1004131.
Symphonie concertante in E-Flat Major, W. C33: I. Allegro (cadenza by B. Banfalvi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff0a443f0552e1cc60d80d0e88bf3eca63f7d9a89759c5223a538a3ad861a560. 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/USB8U1004132.
Symphonie concertante in E-Flat Major, W. C33: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59b6dd30c2e4433919f7234d8fda4c79827f65d982dbe4cb08639115bbaf74e9. 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/USB8U1004133.
Sinfonia concertante in E Major, W. C44: II. Larghetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f00a9d96bf9bd4226b90511d6263454211f5be0b12dce9f0e6fddda5e807a3e. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USB8U1004158.
Le nozze di Figaro (The Marriage of Figaro), K. 492: Overture
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03768401ededc01b226f30a88e5ef50cbfd6be05f2c1cdbc1ce9622ff7f25365. 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/HKI199736801.
Concerto for Flute and Harp in C Major, K. 299: II. Andantino (excerpt)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56d353ac06dc2091a504a012d0f66a4967a258c9df92ea4b69ecd8815c066d99. 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/HKI199274202.
Horn Concerto No. 4 in E-Flat Major, K. 495: III. Rondo: Allegro vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64db90cdf45c801709855edeb54ed2c1483131ec423ed0c323fae5ad93c19daf. 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/HKI199607109.
Serenade No. 13 in G Major, K. 525, "Eine kleine Nachtmusik": I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde6fc7a59a7617f60065fdc939784ea2adf5ffcc36be567cd2ec4ce0ac29f8c2. 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/HKI190563101.
Symphony No. 40 in G Minor, K. 550: I. Molto allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bfb8eaaa341ecb54aea57990fd042e090b48d12972255af27bcdecd526806ff. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/HKI199597004.
Symphony No. 25 in G Minor, K. 183: I. Allegro con brio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc356c08013434460981d0bce5edf328a492a724d7ad735ea7e8dd47e37d727c3. 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/HKI199280505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7338f8cb455a89f0df1e6867d5aeec5d459b1ec5a588ee5320eaf496087135a. 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/HKI199793613.
Piano Concerto No. 23 in A Major, K. 488: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x543cf7c80e36778f3c88fde8c5e4392179515504c2e8ae098bf5b1991abc3d46. 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/HKI199276902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a8dceded1f53de8564a59736c01e1a2bfdc3f74905baacbff6a807e0963cd52. 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/HKI199275608.
Symphony No. 38 in D Major, K. 504, "Prague": III. Finale: Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ef7c9108d1cc501456f794374c220a304ecbfca68581141744d9a844ffb714. 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/HKI199597003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62d0f39aba8b1a79993064213e7135e4dedd602de68ec1e7ce2740e9a03f5961. 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/HKI199202005.
A Guided Tour of the Classical Era, Vol. 2
Beethoven: Chamber Music for Horns, Winds and Strings
Brahms / Duvernoy / Herzogenberg: Horn Trios
Mozart: Oboe Quartet, K. 370 / Horn Quintet, K. 407 / A Musical Joke, K. 522
Horn Quintet in E-Flat Major, K. 407: III. Rondeau: Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4a40e7bea6b8fdeb21e1be19b5655e224af8cad059ab8546be78fb15b93c074. 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/HKI199275406.
Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": I. Adagio sostenuto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae375756518e9df9b2ae0d94a4e5ec10916a0638d2f27ede3ae8676196e12203. 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/HKI199214304.
Bagatelle in A Minor, WoO 59, "Fur Elise"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe88ea202db5fc0098d6b9f8e168873770fe80adedebb329181ea37cabbe7eb8f. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:42:55Z), 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/HKI191435601.
Septet in E-Flat Major, Op. 20: II. Adagio cantabile
Concerto for Violin, Cello & Piano in C Major, Op. 56 "Triple Concerto": II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8926b51d0cf315db3682c7de9f39465533cb41cd6f9d5d7fbcf87eaf2b1d3a2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199803305.
Piano Trio in B-Flat Major, Op. 11 "Gassenhauer": II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95c31ce856ed1d1fdfd390ad2a414939579bfcfe1f1979691b7c39d708b40939. 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/HKI190301102.
Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": II. Adagio cantabile
Violin Concerto in D Major, Op. 61: II. Larghetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7c21fdeddaf346f60b3bf791598f5b4b804cc4f7be486a3ae1abe41058fc5bc. 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/HKI199940302.
Cello Sonata No. 3 in A Major, Op. 69: III. Adagio cantabile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe3d7930067eff720e0492ca8de7df1f66e86907c9031993177e56c2a4d4717d. 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/HKI190229822.
Violin Sonata No. 5 in F Major, Op. 24 "Spring": II. Adagio molto espressivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5512613c47021052ebe88ea9e4de14434bf44029e3e6a5a6823f9a305ab19fb9. 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/HKI199217802.
Quintet in E-Flat Major, Op. 16: II. Andante cantabile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89e32f9ed57696f158c2af24bd7e517d133fd5223d6bcb841408e0d382ee8e27. 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/HKI199213202.
Serenade - Classical Favourites for Relaxing and Dreaming
Serenade für Streicher, Op. 22, B. 52: Larghetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe008bc758886ea4bdd2d7167d39cc585a807273510372429a4b535aebd841317. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-21T16:54:12Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199306503.
Carmen (arr. for flute and harp): Intermezzo from "Carmen"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bacd4c4369331a26c71003ccc5efab40293c6833fe51a7da2292872771e38a0. 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/HKI199306507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a336c4ee52cade43600e2a777968b19a63e8dc3d45d28f922e458be183dc4e7. 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/HKI199214302.
Violin Sonata No. 5 in F Major, Op. 24, "spring": Violin Sonata No. 5 in F Major, Op. 24, "spring"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5512613c47021052ebe88ea9e4de14434bf44029e3e6a5a6823f9a305ab19fb9. 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/HKI199217802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f848ae64ac640416682d4ff8280a48fd96a73cb37241e9804c63bd187193af9. 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/HKI199213605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb5b2a6de207f95198827ebb4edd980a69681241423b468a0ce24f54432416c1. 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/DEZC62259545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48e1985748b8da8e55b77a9a37e549e7683a733a0d53d0ede87f53b5852bcdde. 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/DEZC62259556.
Symphony No. 5 in C Minor, Op. 67: I. Allegro con brio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fcd2754af8909937a7b29b8a8a51b8d225084161bfa9eea6491e3f9f4e8b581. 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/HKI199216401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb325efafb1f9b385ff56b4be78f68a1cb8fc63e2dfb5163773a98565881b35. 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/HKI191516202.
Symphony No. 7 in A Major, Op. 92: II. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b515213061ea3162faf5ceaaa34d1da3d7ea4c6b0de7c4662f7699b21710330. 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/HKI199597302.
Piano Quintet in E-Flat Major, Op. 16: Piano and Wnd Quintet in E-Flat Major, Op. 16: Andante cantabile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x018c669ac1ee931779169dbebf042c56b3bf434abbfa85f9d634f3b5214ab014. 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/HKI199615807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x776927a511706765ece4ec02c008ef0aa66fb452eb4ba8712c3ea7978384d48a. 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/DEZC62259489.
Fire Water Music - 1. Satz, Ich Wendete Mich Nicht
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f7514e76f11c58bc0821140c1a816ce9e78a829194bb71193caecf0061b4ba3. 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/DEZC62259599.
Fire Water Music - 4. Satz, Das Geheimnis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdb7060df02b158e7f46f17099fa36fe4c1a421c574b43de3506fe62cb779eea. 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/DEZC62292597.
Meditation - Classical Favourites for Relaxing and Dreaming
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7390adf12a16ad7e112974062460df1e2598c0d5eefafe2bc29e3db1067b05c8. 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/HKI199269702.
Oboe Concerto in D Minor, Op. 9, No. 2: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5142335abd987a2f6c9339187822294c58b9b8d6e9edbe5d26a1cad20624a429. 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/HKI199269709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd475c6a3df35eb2441b63ee7ed61b5c05c1b4321dc8774366004cbb71282b73. 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/HKI199269710.
Heroic Horn: Best Loved Classical Horn Music
Mozart: Piano Quintet in E-Flat Major / Beethoven: Piano Quintet in E-Flat Major
Bach, J.C.: Sinfonie Concertanti, Vol. 3
Nocturne: Classical Favourites for Relaxing and Dreaming
Mozart: Piano Quintet In E Flat Major / Beethoven: Piano Quintet In E Flat Major
Sugar, R.: Baroque Sonatina / String Quartets Nos. 2 and 3 / Frammenti Musicali / Sonata