250px|thumb| Josef Alois Krips (8 April 1902 – 13 October 1974) was an Austrian conductor and violinist. Life and career Krips was born in Vienna. His father was Josef Jakob Krips, a medical doctor
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 0x8916601373d16a9ad7ba57561124075b4c74dd21e585e0a4a89cae74c25868ec. 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/97e85a9d-a083-4444-9809-bc61b9681182.json and https://artists.proofprofile.net/proofs/artist/97e85a9d-a083-4444-9809-bc61b9681182.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Symphony No. 9 in C Major, D. 944 "The Great": II. Andante con moto
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 0x205ea42cc7e40d304052422770b5a5b7bfb27b9ffae0a08fdaec4e59278a5916. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/GBF075810652 — a six-check JSON result.
Symphony No. 9 in C Major, D. 944 "The Great": III. Scherzo. Allegro vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe91c93f544e2de00e0aa256e2e7fa027901a75f9e6e9c837d4424a3cdbabbe4d. 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/GBF075810653 — a six-check JSON result.
Symphony No. 9 in C Major, D. 944 "The Great": IV. Finale. Allegro vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e0a33a3fd34cd86b4c3137eda0018de3f973eaf39088d5edd738e3b59e377af. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/GBF075810654 — a six-check JSON result.
Symphony No. 8 in B Minor, D. 759 "Unfinished": II. Andante con moto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe769da8a47cff411532f0db9b291960dc994580d1083a0e23b7b80b4a8659b72. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/GBF076911032 — a six-check JSON result.
Il dissoluto punito ossia Il Don Giovanni
Mozart, Einem, Wagner & R. Strauss: Opera Arias
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Schubert: Symphony No. 9; Weber: Oberon Overture (2024 Remaster)
Symphony No. 9 in C Major, D. 944 "The Great": I. Andante – Allegro ma non troppo - 2024 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x224a03dceeac48e280c08dd2f5698a06bc63c618aa17e55c037042a9e9bbb672. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/GBF075810651 — a six-check JSON result.
Symphony No. 9 in C Major, D. 944 "The Great": II. Andante con moto - 2024 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x205ea42cc7e40d304052422770b5a5b7bfb27b9ffae0a08fdaec4e59278a5916. 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/GBF075810652 — a six-check JSON result.
Symphony No. 9 in C Major, D. 944 "The Great": III. Scherzo. Allegro vivace - 2024 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe91c93f544e2de00e0aa256e2e7fa027901a75f9e6e9c837d4424a3cdbabbe4d. 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/GBF075810653 — a six-check JSON result.
Symphony No. 9 in C Major, D. 944 "The Great": IV. Finale. Allegro vivace - 2024 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e0a33a3fd34cd86b4c3137eda0018de3f973eaf39088d5edd738e3b59e377af. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBF075810654 — a six-check JSON result.
Oberon, J. 306: Overture - 2024 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb59685f14396244fb8b0034139838b5cbd07425406bfd77fe5583901dfcf7a7a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075812450 — a six-check JSON result.
Mozart: Symphonies Nos. 32, 34 & 33; Rehearsal for Symphony No. 33 (2024 Remaster)
Symphony No. 32 in G Major, K. 318: I. Allegro spiritoso - 2024 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9957482e83e1b147bd0b65a45a2b539963b6d5cd5986c346038734bf78e00bdf. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/NLA507300368 — a six-check JSON result.
Symphony No. 32 in G Major, K. 318: II. Andante - 2024 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb2e20a56f149592cda07f6575af959d003b33153c94d3b536653ee79c08a530. 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/NLA507301120 — a six-check JSON result.
Symphony No. 32 in G Major, K. 318: III. Tempo I - 2024 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be066b67fb7e8dec47305689fe6b47713e84e2f28c2197d3c3c238472345535. 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/NLA507301121 — a six-check JSON result.
Symphony No. 34 in C Major, K. 338: I. Allegro vivace - 2024 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x086a72d35a35ba425b21b60a3b43ad64acffdd39244d566dc586fbef9e502d83. 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/NLA507300365 — a six-check JSON result.
Symphony No. 33 in B-Flat Major, K. 319: I. Allegro assai - 2024 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa50a72fe58ee4e84999b4d44c5e5b3d69b5e18e8dba8e942daf551bc45eee069. 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/NLA507300361 — a six-check JSON result.
Schubert: Symphonies Nos. 6 & 8; Rosamunde Overture (Remastered 2024)
Opera Arias - Mozart, Puccini, Massenet, Bizet, Mussorgsky, Bellini, Gounod (Remastered 2024)
Mozart: Symphonies Nos. 39 & 41; Overture, Le nozze di Figaro (Remastered by Andrew Hallifax 2024)
Le nozze di Figaro, K. 492: Overture - Remastered by Andrew Hallifax 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f43ad5efdf88527f68f272af0bc827c63e129c6eff0792c638868a00d56f218. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBF074910990 — a six-check JSON result.
Mozart: Overtures; Mozart, R. Strauss: Opera Arias (Remastered 2024)
Die Zauberflöte, K. 620: Overture - Remastered 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd590f56fe1ca9f9b0d3945d2060cfe0ea4caea4d0b4ac2a89bfe9a50ad75ad25. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/GBF075110980 — a six-check JSON result.
Mozart: Die Entführung aus dem Serail; Turkish March; Opera Arias (Remastered 2024)
Die Entführung aus dem Serail, K. 384: Ouvertüre - Remastered 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b5b4d1251c8d9f44332a7cbc9d6daee26dcaf19aa4201f5c653ee2456f48f68. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/GBF075040401 — a six-check JSON result.
J. Strauss II: Waltzes (Remastered 2024)
An der schönen blauen Donau, Waltz, Op. 314 - Remastered 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7adce6ab4d8574d965c3ffe90cb81c0ddcae93a216cf00da3bb22589a9052966. 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/GBBBA4950273 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57837bd1a81021b8ef7300ad3a30854ed7c7ed3c9d49a81d22eafd9a3fb8b25d. 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/GBBBA4950274 — a six-check JSON result.
Accelerationen Walzer, Op. 234 - Remastered 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x267807c03865de6ac21d8253ab9082da0ce63b947e79d819debddbca90b9d402. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/GBBBA4950271 — a six-check JSON result.
Rosen aus dem Süden, Op. 388 - Remastered 2024
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Tritsch-Tratsch-Polka, Op. 214 - Remastered 2024
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Piefke und Pufke Polka, Op. 235 - Remastered 2024
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Haydn: Symphony No. 104; Weber: Euryanthe Overture (Remastered 2024)
Schumann: Papillons; Arabeske; Piano Concerto (Wilhelm Kempff: Complete Decca Recordings, Vol. 5)
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb452016bc2cd534363b6e3c3376e1157761fdac21cb419796557bf72c95136e9. 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/QMFME1930295 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffde51cbc093d522d1e8bd048a24df870668d97de2a62022449ad93a94000ec0. 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/GBF075010770 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d7bd82e70642e5e1cd9af3e5059a23a6bbc9cd55e61f37ddee56eb9e0c07dd2. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GBF075710212 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd03099fff261b4ca69bb27d72943243e605abf35f532cfd6309af8015a41e79. 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/GBF075710213 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d77fafa63077fffddbd2e4bc21a61c99534d521d31613aa212c8bf545cac941. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/GBF075710214 — a six-check JSON result.
Voices Of Spring (Frühlingsstimmen), Op. 410
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Mahler: Symphony No. 4 in G Major (Live)
Mozart, Haydn, Schubert & Others: Orchestral Works
Milestones of a Legend: Alfredo Campoli, Vol. 3
Milestones of a Legend: Isaac Stern, Vol. 5
Milestones of a Legend: The Cello Queen, Vol. 6
Tossy Spivakovsky Live: 8 Violin Concertos
Milestones of a Piano Legend: Sir Clifford Curzon, Vol. 8
Symphony No. 9 in D minor, Op. 125: IV. Presto; Allegro molto assai (Alla marcia); Andante maestoso; Allegro energico, sempre ben marcato
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Beethoven: The Nine Symphonies No. 7, No. 8
Beethoven: The Nine Symphonies No. 5, No. 6
Johann Strauss jr: Overtures, Waltzes and Polkas
Beethoven the Nine Synphonies: No. 3, No. 4
Brahms: Symphony No. 1 in C minor, Op. 68
Beethoven: The Nine Symphonies No. 1, No. 2
Festival Johannes Brahms, Concert du 28/05/1959, Orchestre Radio Symphonique de la RTF, Josef Krips (dir), Arthur Rubinstein (piano)
Wiener Staatsoper Live: Gundula Janowitz
Schubert, Schumann, Brahms, Wolf, Strauss & Marx
Idomeneo, Così fan tutte, Iphigenie auf Tauris, Fidelio, Cenerentola, Faust, Hoffmanns Erzählungen, Verkaufte Braut, Jenufa & Rake's Progress
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Nabucco, Act III: Va, pensiero, "Chorus of Hebrew Slaves"
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Il trovatore, Act II: Vedi, le fosche notturne
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba96a75e9ed0285589b9897601dfd0cddf806d086476a41af7139d5b6f3a01be. 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/USB8U1700186 — a six-check JSON result.
Operas and Operettas - Donizetti, G. / Lehar, F. / Kalman, E. / Boito, A. / Puccini, G. / Bellini, V. / Mozart, W.A. (Festival of the Primadonnas)