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 0x3c571b92162929e46435ad12d90fa0c45e28895e51bba21987fe1b0533e9b534. Chain 2 (Bitcoin): anchored in block 953605 (2026-06-14T07:39:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/117b0514-b88d-4a7d-abed-e4c28b303c7c.json and https://artists.proofprofile.net/proofs/artist/117b0514-b88d-4a7d-abed-e4c28b303c7c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Summer, Sun & Classical (150 entspannte klassische Titel für den Sommer)
Nabucco, Act 3: Va, pensiero, sull'ali dorate
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 0xb685f736b5e571c2028bb281404e4c6a3b2e7c8ce5cfbe0d0b1700e5331d8d46. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES380001838.
Die 50 Klassik-Hits zum Entspannen - Mondscheinsonate - Schwanensee - Symphonie Fantastique - Blumenstück
Symphonie Fantastique, Op. 14: II. Un bal valse. Allegro non troppo
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01786b2ae3f46ef064c79a2b02de215f2b272d1dd1522a707aa5142ca5656046. 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/DES380013262.
Piano Concerto No. 21 in C Major, K. 467 "Elvira Madigan": II. Andante
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Suite No. 2 in D Major, HWV 349 "Water Music": II. Alla Hornpipe
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf7872e09bdaa9daeaa725f0e12b088aa4cab7a8c6d8246b1461821f9cf85d59. 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/DES380007005.
Concerto for Clarinet and Orchestra in A Major, K. 622: II. Adagio
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6992f2b9e4de2b2d909eac0ea16fca73eb4fdba5592146c19c1dfee595b13d5. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES380823007.
Lyric Suite, Op. 54: IV. March of the Dwarfs
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Symphony No. 102 in B-Flat Major, Hob.I:102: I. Largo - Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19df2fdb0c84b4e8ee8f34a662546f454d4b8caf963c5d105fa3df5f1d8a6b2a. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES380009715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6bff21f56a3f162476098f31f40338c8cf332c0185ce586ba610ee0c2aad9cb. 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/DES380000623.
Overture No. 3 in D Major, BWV 1068: II. Air
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The Nutcracker Suite, Op. 71, Act II: "Dance of the Reeds"
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4287ff937b3531f8ef21b08f29ce7bfc5a4ea4715489304326ada938a4e994b4. 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/DES380519103.
Piano Sonata No. 14 in C-Sharp Minor, Op. 27 "Moonlight": I. Adagio sostenuto
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Clarinet Concerto in A Major, K. 622: II. Adagio
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L'Arlesienne, Op. 23, Suite No. 2: I. Pastorale
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String Quintet No. 17 in E Major, Op. 13 No. 5, G. 275: III. Menuet
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Symphony No. 6 in F Major, Op. 68 "Pastoral": I. Awakening of Cheerful Feelings Upon Arrival in the Country
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Piano Concerto No. 20 in D Minor, K. 466: II. Romance
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Piano Trio No. 2 in E-Flat Major, Op. 100, D. 929: II. Andante con moto
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53b5688a07539aba97f27ed28d9f298a5f480a493fb373ab38fa99786eb3eef6. 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/DES380002465.
Antiche danze ed arie per liuto, Suite No. 3, [P. 172]: III. Siciliana. Andantino
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250 Minuten einfach mal entspannen (Clair de lune - Mondscheinsonate - Träumerei - Für Elise - Abendsegen)
Waltz No. 5 in A-Flat Major, Op. 42: Waltz No. 5 in A-Flat Major, Op. 42
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Nocturne No. 2 in E-Flat Major, Op. 9: II. Andante
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Nocturne No. 1 in B-Flat Minor, Op. 9: I. Larghetto
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Waltz No. 7 in C-Sharp Minor, Op. 64, No. 2: Waltz No. 7 in C-Sharp Minor, Op. 64, No. 2
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Etude in C Major, Op. 10: No. 1, Allegro, legato
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Fantasy-Impromptu in C-Sharp Minor, Op. 66
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x833d02bba88f73b34d18b0244a460aa4033ccad64a639f76289f76dffdad9463. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/DES380016925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4aacfd7369dd71193b53aada77c25d31f0ec790baa61a8080421c6f6a6c57a4. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/DES380016926.
Nocturne Oubliée in C-Sharp Minor (Larghetto)
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Waltz No. 1 in E-Flat Major, Op. 18, "Grande Valse Brillante": Waltz No. 1 in E-Flat Major, Op. 18, "Grande Valse Brillante"
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecaefa7e222e8c6ac8ab5170af5f43833a307e9c6b77e8e34d5144164c4496b0. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES380016929.
24 Preludes, Op. 28: Prelude No. 3 in G Major
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Nocturne No. 17 in B Major, Op. 62, No. 1: Nocturne No. 17 in B Major, Op. 62, No. 1
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Polonaise No. 6 in A-Flat Major, Op. 53, "Heroic": Polonaise No. 6 in A-Flat Major, Op. 53, "Heroic"
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Bar Classics (Most Famous Tunes in Classical Music)
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Préludes, Op. 28: No. 15 in D-Flat Major "Raindrop-Prélude"
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Rhapsody in Blue - Arr. For Piano 4 Hands
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Silhouettes, Op. 8: No. 8, Allegretto in B Minor
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Images, Book 2, L. 111: No. 3, Poissons d'or
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Lyric Pieces, Book 8, Op. 65: No. 6, Wedding Day At Troldhaugen - Arr. By A. Ruthard
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Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": I. Adagio sostenuto
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Die 50 schönsten Klassikmomente - Wassermusik - Der Sturm - Ode an die Freude - Carmen - Clair de lune - Halleluja
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Britten, Beethoven, Schubert, Mozart, Haydn, Albeniz, Liszt, Ravel, Poulenc, Chopin, Debussy, Massenet, Brahms, Grieg, & Szymanowski: Classics in Heaven
Simple Symphony, Op. 4: Sentimental Saraband - Poco lento e pesante
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Summer Classics - Klassische Sommermelodien
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Classics in Heaven - Moments of Peace (In Harmony with Classical Music)
Sensitive Sounds - Steps in Silence (In Harmony with Classical Music)
Orfeo ed Euridice: Reigen seliger Geister
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4 Elements - Classical Music of Fire, Water, Air and Earth
Beethoven, Rimski-Korsakow, Mozart, Mahler, Debussy, Liszt & Schumann: LUFT
Steps in Silence (In Harmony with Classical Music)
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Träumerei - Romantische Welterfolge Der Klassik
Bagatelle No. 25 in A Minor, WoO 59 "Für Elise
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BRAHMS, J.: In stiller Nacht / DISTLER, H.: Die Sonne sinkt von hinnen / SCHULZ, J.A.P.: Der Mond ist aufgegangen (Eventide Music) (Eschenburg)
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Der Mond ist aufgegangen (arr. A. Seifert and M. Reger)
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Piano Sonata No. 20 in A Major, D. 959: II. Andantino
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Classical Music for Children, Vol. 2 - Kinderklassik
Concertino for Piano and Orchestra: II. Lent
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Gute Nacht, Schlafe Sacht (Klassische Musik für Kinder)
Liszt, F.: Piano Concerto No. 2 / Fantasy On Hungarian Folk Themes / Weber - Polonaise Brillante / Weber - Freischutz Fantasie
Virtuoso - Romantic Music for Guitar & Flute
Touch Your Soul (In Harmony with Classical Music)
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