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Cello Sonata No. 3 in A Major, Op. 69: Iii. Adagio cantabile
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Septet in E-flat Major, Op. 20: Ii. Adagio cantabile
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Mozart For Inspiration
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:22:41Z
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:22:41Z
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  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
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OTSVerificationAPI
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OTSTimestamp
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OTSVerifyInstructions
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value: 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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: 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.
date published: 2026-07-08T03:39:04Z

Violin Sonata No. 5 in F Major, Op. 24, "spring": Ii. Adagio molto espressivo
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Bach, J.C.: Symphonie Concertanti
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track: Sinfonia concertante in E-Flat Major, W. C41: II. Larghetto
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  by artist: Budapest Strings
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:53:27Z
  audio: Sinfonia concertante in E-Flat Major, W. C41: II. Larghetto
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track: Symphonie concertante in C Major, W. C36a: I. Andante
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:22:41Z
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  additional property: OTSBitcoinBlockVerifyURL
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  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Concerto a piu istrumenti in D Major, W. C35: I. Allegro
track: Symphonie concertante in C Major, W. C36a: III. Allegro
track: Symphonie concertante in E-Flat Major, W. C33: I. Allegro (cadenza by B. Banfalvi)
track: Symphonie concertante in E-Flat Major, W. C33: II. Andante
track: Sinfonia concertante in E Major, W. C44: II. Larghetto

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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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OTSTimestamp
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OTSVerifyInstructions
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value: 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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: 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.
date published: 2026-07-08T03:53:27Z

Concerto a piu istrumenti in D Major, W. C35: I. Allegro
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Symphonie concertante in C Major, W. C36a: III. Allegro
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by artist: Janos Balint
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by artist: Béla Bánfalvi
by artist: Karoly Botvay
by artist: Budapest Strings
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subject of: OpenTimestamps Proof of Existence
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Symphonie concertante in E-Flat Major, W. C33: I. Allegro (cadenza by B. Banfalvi)
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  date published: 2026-07-08T03:20:19Z
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Symphonie concertante in E-Flat Major, W. C33: II. Andante
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
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Sinfonia concertante in E Major, W. C44: II. Larghetto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T07:53:57Z
audio: Sinfonia concertante in E Major, W. C44: II. Larghetto
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My First Mozart Album
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track: Le nozze di Figaro (The Marriage of Figaro), K. 492: Overture
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    date published: 2026-07-08T08:56:20Z
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track: Concerto for Flute and Harp in C Major, K. 299: II. Andantino (excerpt)
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    date published: 2026-07-08T03:22:41Z
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track: Horn Concerto No. 4 in E-Flat Major, K. 495: III. Rondo: Allegro vivace
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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:22:41Z

Horn Concerto No. 4 in E-Flat Major, K. 495: III. Rondo: Allegro vivace
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50 of the Best: Mozart
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date published: 2011-11-15
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  additional property: OTSVerifyInstructions
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    value: 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
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T08:56:20Z
  audio: Serenade No. 13 in G Major, K. 525, "Eine kleine Nachtmusik": I. Allegro
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track: Symphony No. 40 in G Minor, K. 550: I. Molto allegro
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  by artist: Philharmonia Cassovia
  by artist: Johannes Wildner
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-07T13:52:39Z
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track: Symphony No. 25 in G Minor, K. 183: I. Allegro con brio
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  by artist: Barry Wordsworth
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  subject of: OpenTimestamps Proof of Existence
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track: Ave verum corpus, K. 618
track: Piano Concerto No. 23 in A Major, K. 488: II. Adagio
track: Fantasia in D Minor, K. 397
track: Symphony No. 38 in D Major, K. 504, "Prague": III. Finale: Presto

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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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OTSTimestamp
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OTSVerifyInstructions
type: PropertyValue
value: 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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: 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.
date published: 2026-07-08T03:53:27Z

Symphony No. 25 in G Minor, K. 183: I. Allegro con brio
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additional property: Valence (Positivity)
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Ave verum corpus, K. 618
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duration ms: 167266
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by artist: Wolfgang Amadeus Mozart
by artist: St. Clement Concert Choir
by artist: St. Clement Concert Orchestra
by artist: Randall Swanson
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genre: classical-era
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Ave verum corpus, K. 618
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Piano Concerto No. 23 in A Major, K. 488: II. Adagio
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duration: PT6M25S
duration ms: 385000
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by artist: Wolfgang Amadeus Mozart
by artist: Jenő Jandó
by artist: Concentus Hungaricus
by artist: Matyas Antal
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genre: classical
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Piano Concerto No. 23 in A Major, K. 488: II. Adagio
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Fantasia in D Minor, K. 397
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duration: PT5M56S
duration ms: 356866
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Janos Sebestyen
in album: 50 of the Best: Mozart
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popularity: 2
genre: classical
genre: classical-era
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Fantasia in D Minor, K. 397
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Symphony No. 38 in D Major, K. 504, "Prague": III. Finale: Presto
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Symphony No. 38 in D Major, K. 504, "Prague": III. Finale: Presto
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Celebrate Beethoven: Chamber
type: MusicAlbum
date published: 2020-06-05

Varma röda stunder
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Klassiskt A-O
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A Guided Tour of the Classical Era, Vol. 2
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Beethoven: Chamber Music for Horns, Winds and Strings
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Brahms / Duvernoy / Herzogenberg: Horn Trios
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Mozart: Oboe Quartet, K. 370 / Horn Quintet, K. 407 / A Musical Joke, K. 522
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Beethoven for Meditation
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track: Concerto for Violin, Cello & Piano in C Major, Op. 56 "Triple Concerto": II. Largo
track: Piano Trio in B-Flat Major, Op. 11 "Gassenhauer": II. Adagio
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Septet in E-Flat Major, Op. 20: II. Adagio cantabile
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Piano Trio in B-Flat Major, Op. 11 "Gassenhauer": II. Adagio
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Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": II. Adagio cantabile
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by artist: Jenő Jandó
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
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Violin Concerto in D Major, Op. 61: II. Larghetto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Violin Concerto in D Major, Op. 61: II. Larghetto
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Cello Sonata No. 3 in A Major, Op. 69: III. Adagio cantabile
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  date published: 2026-07-08T03:22:41Z
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Violin Sonata No. 5 in F Major, Op. 24 "Spring": II. Adagio molto espressivo
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  date published: 2026-07-08T03:53:27Z
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Quintet in E-Flat Major, Op. 16: II. Andante cantabile
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  date published: 2026-07-08T03:53:27Z
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Serenade - Classical Favourites for Relaxing and Dreaming
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track: Serenade für Streicher, Op. 22, B. 52: Larghetto
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track: Carmen (arr. for flute and harp): Intermezzo from "Carmen"
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:22:41Z
  audio: Carmen (arr. for flute and harp): Intermezzo from "Carmen"
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Beethoven For Study
type: MusicAlbum
date published: 2021-12-24
track: Piano Sonata No. 8 in C Minor, Op. 13, "pathétique": Ii. Adagio cantabile
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  by artist: Jenő Jandó
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    type: MusicAlbum
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  genre: classical
  genre: classical-piano
  genre: chamber-music
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-08T08:56:20Z
  audio: Piano Sonata No. 8 in C Minor, Op. 13, "pathétique": Ii. Adagio cantabile
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track: Violin Sonata No. 5 in F Major, Op. 24, "spring": Violin Sonata No. 5 in F Major, Op. 24, "spring"
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  by artist: Ludwig van Beethoven
  by artist: Takako Nishizaki
  by artist: Jenő Jandó
  in album: Beethoven For Study
    type: MusicAlbum
    date published: 2021-12-24
  genre: classical
  genre: classical-piano
  genre: chamber-music
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  additional property: CopyrightID
  additional property: CopyrightStatus
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-08T03:22:41Z
  audio: Violin Sonata No. 5 in F Major, Op. 24, "spring": Violin Sonata No. 5 in F Major, Op. 24, "spring"
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track: Piano Concerto No. 5 in E-flat Major, Op. 73, "emperor": Piano Concerto No. 5 in E-flat Major, Op. 73, "emperor"
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  by artist: Ludwig van Beethoven
  by artist: Stefan Vladar
  by artist: Capella Istropolitana
  by artist: Barry Wordsworth
  in album: Beethoven For Study
    type: MusicAlbum
    date published: 2021-12-24
  genre: classical
  genre: classical-piano
  genre: chamber-music
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  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Piano Concerto No. 5 in E-flat Major, Op. 73, "emperor": Piano Concerto No. 5 in E-flat Major, Op. 73, "emperor"

CopyrightRegisteredAt
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OTSHash
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OTSBitcoinBlock
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OTSBitcoinBlockVerifyURL
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value: https://blockstream.info/api/block-height/957118

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199213605

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:20:19Z

OTSVerifyInstructions
type: PropertyValue
value: 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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: 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.
date published: 2026-07-08T03:20:19Z

Piano Concerto No. 5 in E-flat Major, Op. 73, "emperor": Piano Concerto No. 5 in E-flat Major, Op. 73, "emperor"
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additional property: Musical Key
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additional property: Mode (Major/Minor)
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additional property: Time Signature
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additional property: Danceability
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additional property: Energy
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additional property: Speechiness
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additional property: Acousticness
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  value: 0.991
additional property: Instrumentalness
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additional property: Liveness
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additional property: Valence (Positivity)
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additional property: Loudness (dB)
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additional property: Key Name
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additional property: Mode Name
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Heimatlieder
type: MusicAlbum
date published: 1991
track: Das Mädchen mit dem Flachshaar
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-08T03:22:41Z
  audio: Das Mädchen mit dem Flachshaar
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    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
      type: PropertyValue
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
      type: PropertyValue
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    additional property: Instrumentalness
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    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
      type: PropertyValue
      value: -21.078
    additional property: Key Name
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track: Radetzky Marsch
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  duration: PT2M34S
  duration ms: 154133
  explicit: false
  by artist: PRO BRASS
  in album: Heimatlieder
    type: MusicAlbum
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-08T03:22:41Z
  audio: Radetzky Marsch
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Beethoven: 30 of the Best
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date published: 2020-04-24
track: Symphony No. 5 in C Minor, Op. 67: I. Allegro con brio
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  by artist: Zagreb Philharmonic Orchestra
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:53:27Z
  audio: Symphony No. 5 in C Minor, Op. 67: I. Allegro con brio
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    additional property: Loudness (dB)
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    additional property: Key Name
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    additional property: Mode Name
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track: Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": II. Adagio cantabile
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  duration: PT4M48S
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  by artist: Ludwig van Beethoven
  by artist: Boris Giltburg
  in album: Beethoven: 30 of the Best
    type: MusicAlbum
    date published: 2020-04-24
  genre: classical
  genre: classical-piano
  genre: chamber-music
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  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191516202
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: 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.
    date published: 2026-07-08T03:20:19Z
  audio: Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": II. Adagio cantabile
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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track: Symphony No. 7 in A Major, Op. 92: II. Allegretto
  type: MusicRecording
  duration: PT8M35S
  duration ms: 515760
  explicit: false
  by artist: Ludwig van Beethoven
  by artist: Philharmonia Cassovia
  by artist: Johannes Wehner
  in album: Beethoven: 30 of the Best
    type: MusicAlbum
    date published: 2020-04-24
  genre: classical
  genre: classical-piano
  genre: chamber-music
  isrc code: HKI199597302
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: CopyrightRegisteredAt
    type: PropertyValue
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  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Symphony No. 7 in A Major, Op. 92: II. Allegretto

CopyrightChainExplorerURL
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value: https://explorer.copyrightchains.com/tx/0x4b515213061ea3162faf5ceaaa34d1da3d7ea4c6b0de7c4662f7699b21710330

OTSHash
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OTSBitcoinBlock
type: PropertyValue
value: 957120

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957120

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199597302

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:22:41Z

OTSVerifyInstructions
type: PropertyValue
value: 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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: 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.
date published: 2026-07-08T03:22:41Z

Symphony No. 7 in A Major, Op. 92: II. Allegretto
type: AudioObject
additional property: Tempo (BPM)
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additional property: Musical Key
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additional property: Mode (Major/Minor)
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additional property: Time Signature
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additional property: Danceability
  type: PropertyValue
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additional property: Energy
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additional property: Speechiness
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additional property: Acousticness
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additional property: Instrumentalness
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  value: 0.293
additional property: Liveness
  type: PropertyValue
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additional property: Valence (Positivity)
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additional property: Loudness (dB)
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additional property: Key Name
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additional property: Mode Name
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Beethoven: Adagio
type: MusicAlbum
date published: 1997-03-13
track: Piano Quintet in E-Flat Major, Op. 16: Piano and Wnd Quintet in E-Flat Major, Op. 16: Andante cantabile
  type: MusicRecording
  duration: PT7M7S
  duration ms: 427066
  explicit: false
  by artist: Ludwig van Beethoven
  by artist: Jenő Jandó
  by artist: Jozsef Kiss
  by artist: Béla Kovács
  by artist: Jozsef Vajda
  by artist: Imre Kovács
  by artist: Jeno Kevehazi
  in album: Beethoven: Adagio
    type: MusicAlbum
    date published: 1997-03-13
  genre: classical
  genre: classical-piano
  genre: chamber-music
  isrc code: HKI199615807
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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    value: 2026-07-07T01:41:57+00:00
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    value: https://explorer.copyrightchains.com/tx/0x018c669ac1ee931779169dbebf042c56b3bf434abbfa85f9d634f3b5214ab014
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  additional property: OTSBitcoinBlockVerifyURL
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    value: https://blockstream.info/api/block-height/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199615807
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: 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.
    date published: 2026-07-08T03:22:41Z
  audio: Piano Quintet in E-Flat Major, Op. 16: Piano and Wnd Quintet in E-Flat Major, Op. 16: Andante cantabile
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.184
    additional property: Energy
      type: PropertyValue
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    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
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      value: 0.077
    additional property: Loudness (dB)
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    additional property: Key Name
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    additional property: Mode Name
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Traumfabrik
type: MusicAlbum
date published: 2001
track: Can You Feel The Love Tonight
  type: MusicRecording
  duration: PT5M3S
  duration ms: 303906
  explicit: false
  by artist: PRO BRASS
  by artist: Andy Haderer
  in album: Traumfabrik
    type: MusicAlbum
    date published: 2001
  isrc code: DEZC62259489
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x776927a511706765ece4ec02c008ef0aa66fb452eb4ba8712c3ea7978384d48a
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957145
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957145
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEZC62259489
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T08:56:20Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: 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.
    date published: 2026-07-08T08:56:20Z
  audio: Can You Feel The Love Tonight
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
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    additional property: Musical Key
      type: PropertyValue
      value: 8
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.329
    additional property: Energy
      type: PropertyValue
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    additional property: Speechiness
      type: PropertyValue
      value: 0.032
    additional property: Acousticness
      type: PropertyValue
      value: 0.959
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.934
    additional property: Liveness
      type: PropertyValue
      value: 0.155
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.175
    additional property: Loudness (dB)
      type: PropertyValue
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    additional property: Key Name
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    additional property: Mode Name
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Firewater
type: MusicAlbum
date published: 1993
track: Fire Water Music - 1. Satz, Ich Wendete Mich Nicht
  type: MusicRecording
  duration: PT3M35S
  duration ms: 215386
  explicit: false
  by artist: PRO BRASS
  in album: Firewater
    type: MusicAlbum
    date published: 1993
  isrc code: DEZC62259599
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T03:15:58+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x5f7514e76f11c58bc0821140c1a816ce9e78a829194bb71193caecf0061b4ba3
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957124
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957124
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEZC62259599
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:53:27Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: 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.
    date published: 2026-07-08T03:53:27Z
  audio: Fire Water Music - 1. Satz, Ich Wendete Mich Nicht
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
      type: PropertyValue
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.458
    additional property: Energy
      type: PropertyValue
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    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
      type: PropertyValue
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    additional property: Instrumentalness
      type: PropertyValue
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    additional property: Liveness
      type: PropertyValue
      value: 0.089
    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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      value: F
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track: Fire Water Music - 4. Satz, Das Geheimnis
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  duration: PT6M9S
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  explicit: false
  by artist: PRO BRASS
  in album: Firewater
    type: MusicAlbum
    date published: 1993
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  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEZC62292597
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T08:56:20Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-08T08:56:20Z
  audio: Fire Water Music - 4. Satz, Das Geheimnis
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    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
      type: PropertyValue
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    additional property: Danceability
      type: PropertyValue
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
      type: PropertyValue
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    additional property: Instrumentalness
      type: PropertyValue
      value: 0.935
    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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Meditation - Classical Favourites for Relaxing and Dreaming
type: MusicAlbum
date published: 1998-06-18
track: Mazurka No. 6 in A Minor, Op. 7, No. 2
  type: MusicRecording
  duration: PT4M12S
  duration ms: 252000
  explicit: false
  by artist: Frédéric Chopin
  by artist: Idil Biret
  in album: Meditation - Classical Favourites for Relaxing and Dreaming
    type: MusicAlbum
    date published: 1998-06-18
  genre: classical
  genre: early-romantic-era
  genre: polish-classical
  isrc code: HKI199269702
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T14:59:02+00:00
  additional property: CopyrightChainExplorerURL
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  additional property: OTSBitcoinBlock
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
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    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
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    date published: 2026-07-08T08:56:20Z
  audio: Mazurka No. 6 in A Minor, Op. 7, No. 2
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