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description: Kurt Masur (; 18 July 192719 December 2015) was a German conductor. Called "one of the last old-style maestros", he directed many of the principal orchestras of his era. He had a long career as the Ka
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album: Kurt Masur Conducts the New York Philharmonic
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album: Bach, Mozart, Brahms, Grieg, Ravel, Satie, Debussy & Sibelius: Unfold your Mind
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album: Bach: Cantatas - BWV 51, 199, 202
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album: Mahler: Kindertotenlieder / Lieder eines fahrenden Gesellen / Ruckert-Lieder / Des Knaben Wunderhorn (Excerpts)
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  track: Die erste Walpurgisnacht, Op. 60: Konnt ihr so verwegen handeln (Alto, Female Chorus)
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album: Bruch: Violin Concertos No.1, Op.26, No.2, Op.44
album: Weber : Clarinet Concertos Nos 1, 2 & Grand Duo Concertant
album: Grieg: Peer Gynt
album: The Philip Smith Collection, Album 2: The Concertos (Live)
album: The Philip Smith Collection (Live)
album: The Glenn Dicterow Collection, Vol. 3
album: The Glenn Dicterow Collection, Vol. 2
album: The Glenn Dicterow Collection
album: Mendelssohn: Early Symphonies
album: Kurt Masur Conducts the Gewandhausorchester Leipzig
album: Tchaikovsky: Symphonies, Romeo and Juliet, Francesca da Rimini & Manfred
album: Liszt: Orchestral Works, Vol. 2. A Faust Symphony, A Dante Symphony & Mephisto Waltzes
album: Liszt: Orchestral Works, Vol. 1. The Weimar Symphonic Poems: Les préludes, Mazeppa, Prometheus...
album: Beethoven: Unknown Masterworks, Vol. 1
album: Schumann: Cellokonzert A-Moll - Tschaikowsky: Rokoko-Variationen
album: Yuja Wang Plays Mendelssohn (Live)
album: Franck: Psyché (Live)
album: Beethoven: Symphonies Nos. 2 & 6
album: 40 Most Beautiful Summer Classics
album: Mendelssohn: Die erste Walpurgisnacht
album: Felix Mendelssohn Bartholdy: A Midsummer Night's Dream, Die erste Walpurgisnacht
album: Wolfgang Amadeus Mozart: Klarinettenkonzert, Klavierkonzert No. 21, Eine kleine Nachtmusik (Best of Wolfgang Amadeus Mozart: Clarinet Concerto, Piano Concerto No. 21 & A Little Night Music)
album: Beethoven: Triple Concerto; Choral Fantasia; Coriolan & Egmont Overtures
album: Aus der Neuen Welt: Best of Dvorák (Inspiration)
album: Prokofiev: Symphony No. 5 & Suites from Romeo and Juliet
album: Bruckner: Symphonies Nos. 4 "Romantic" & 7
album: Tchaikovsky: The Piano Concertos
album: Brahms: Symphonies, Overtures & Schicksalslied
album: Schumann: Symphonies
album: Masur conducts Alexander Nevsky
album: Beethoven: Violin Concerto
album: Beethoven: Symphony No. 5
album: Beethoven: Symphonies Nos. 3 & 5
album: Shostakovich: Symphony No. 7 (Live)
album: Beethoven: Symphonies Nos. 1 & 4
album: Grandes Épocas de la Música. Beethoven: Concierto Op. 56, Sonata No. 10 Op.96
album: The Philip Smith Collection, Album 3: The Concertos (Live)
album: Kurt Masur - Kapellmeister-Edition, Vol. 3
album: El-Khoury: Concerti for Violin, Horn & Clarinet (Live)
album: Tchaïkovsky 'Live'
album: Bruch & Brahms: Violin Concertos
album: Mendelssohn: Violin Concerto Op.64; Piano Trio Op.49; Violin Sonata in F major (1838)
album: Tschaikovsky & Grieg: Klavierkonzerte
album: Brahms: Ein deutsches Requiem, Op. 45
album: Britten: War Requiem, Op. 66
album: "A Midsummer Musical Journey" - From Mozart & Mendelssohn to Ravel & Tchaikovsky
track: Morning Mood
track: Tchaikovsky: Symphony No. 1, Op. 13 "Winter Daydreams": III. Scherzo. Allegro scherzando giocoso
track: 21 Hungarian Dances, WoO 1 - Orchestral Version: No. 5 in G Minor
track: Peer Gynt, Op. 23 - Concert version by Kurt Masur & Friedhelm Eberle: Prelude: Morning Mood
track: Peer Gynt, Op. 23 - Concert version by Kurt Masur & Friedhelm Eberle: "In the Hall of the Mountain King"
track: Bruch: Violin Concerto No. 1 in G Minor, Op. 26: I. Prelude. Allegro moderato
track: Violin Concerto in E Major, BWV 1042: I. Allegro
track: Piano Concerto No. 21 in C Major, K. 467: II Andante

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Die erste Walpurgisnacht, Op. 60: Ouverture: Der Ubergang zum Fruhling
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Die erste Walpurgisnacht, Op. 60: Es lacht der Mai (Tenor, Chorus)
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  additional property: Acousticness
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
    value: 0.631
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.134
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.158
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die erste Walpurgisnacht, Op. 60: Konnt ihr so verwegen handeln (Alto, Female Chorus)
type: MusicRecording
duration: PT1M56S
duration ms: 116173
explicit: false
by artist: Felix Mendelssohn
by artist: Kurt Masur
by artist: Leipzig Gewandhaus Orchestra
by artist: Annelies Burmeister
by artist: MDR Leipzig Radio Chorus
in album: Mendelssohn Bartholdy: Die Erste Walpurgisnacht / Infelice / Ouverture zum Marchen von der schonen Melusine
  type: MusicAlbum
  date published: 1974
popularity: 2
genre: classical
genre: early-romantic-era
genre: german-romanticism
genre: classical-piano
genre: choral
genre: chamber-music
isrc code: DES380005711
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T05:31:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfaa56fbd5dc881d96c808666b77480e4f27e81f2d8217f365400618254cbaf58
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES380005711
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa56fbd5dc881d96c808666b77480e4f27e81f2d8217f365400618254cbaf58. 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/DES380005711 — a six-check JSON result.
  date published: 2026-07-08T03:22:41Z
audio: Die erste Walpurgisnacht, Op. 60: Konnt ihr so verwegen handeln (Alto, Female Chorus)
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  additional property: Tempo (BPM)
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    value: 96.621
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    value: 7
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    value: 0
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    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Speechiness
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  additional property: Acousticness
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    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.141
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.117
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.327
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Die erste Walpurgisnacht, Op. 60: Wer Opfer heut' zu bringen scheut (Baritone, Chorus)
type: MusicRecording
duration: PT1M36S
duration ms: 96826
explicit: false
by artist: Felix Mendelssohn
by artist: Kurt Masur
by artist: Leipzig Gewandhaus Orchestra
by artist: Siegfried Lorenz
by artist: MDR Leipzig Radio Chorus
in album: Mendelssohn Bartholdy: Die Erste Walpurgisnacht / Infelice / Ouverture zum Marchen von der schonen Melusine
  type: MusicAlbum
  date published: 1974
popularity: 1
genre: classical
genre: early-romantic-era
genre: german-romanticism
genre: classical-piano
genre: choral
genre: chamber-music
isrc code: DES380005712
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T00:37:55+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc1e05277abd4f4631c2d33380ee8d3730717b0abe70905fa263252040afee303
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES380005712
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e05277abd4f4631c2d33380ee8d3730717b0abe70905fa263252040afee303. 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/DES380005712 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Die erste Walpurgisnacht, Op. 60: Wer Opfer heut' zu bringen scheut (Baritone, Chorus)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 132.678
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
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    value: 1
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    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.422
  additional property: Energy
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    value: 0.345
  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.971
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.67
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.347
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.481
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die erste Walpurgisnacht, Op. 60: Verteit euch, wack're Manner, hier (Male Chorus)
type: MusicRecording
duration: PT1M42S
duration ms: 102173
explicit: false
by artist: Felix Mendelssohn
by artist: MDR Leipzig Radio Chorus
by artist: Kurt Masur
by artist: Leipzig Gewandhaus Orchestra
in album: Mendelssohn Bartholdy: Die Erste Walpurgisnacht / Infelice / Ouverture zum Marchen von der schonen Melusine
  type: MusicAlbum
  date published: 1974
popularity: 1
genre: classical
genre: early-romantic-era
genre: german-romanticism
genre: classical-piano
genre: choral
genre: chamber-music
isrc code: DES380005713
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T20:15:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x518a607815788272e4423e0707126acebedcf32a1efb26ac444d8dab533bcedf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960311
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960311
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES380005713
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T20:45:02Z
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x518a607815788272e4423e0707126acebedcf32a1efb26ac444d8dab533bcedf. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/DES380005713 — a six-check JSON result.
  date published: 2026-07-30T20:45:02Z
audio: Die erste Walpurgisnacht, Op. 60: Verteit euch, wack're Manner, hier (Male Chorus)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 112.762
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
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    value: 1
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    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.499
  additional property: Energy
    type: PropertyValue
    value: 0.085
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.985
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.279
  additional property: Liveness
    type: PropertyValue
    value: 0.081
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.251
  additional property: Loudness (dB)
    type: PropertyValue
    value: -31.272
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die erste Walpurgisnacht, Op. 60: "Kommt mit Zacken und mit Gabeln"
type: MusicRecording
duration: PT5M58S
duration ms: 358106
explicit: false
by artist: Felix Mendelssohn
by artist: Siegfried Vogel
by artist: MDR Leipzig Radio Chorus
by artist: Gewandhausorchester
by artist: Kurt Masur
in album: Mendelssohn Bartholdy: Die Erste Walpurgisnacht / Infelice / Ouverture zum Marchen von der schonen Melusine
  type: MusicAlbum
  date published: 1974
popularity: 2
genre: classical
genre: early-romantic-era
genre: german-romanticism
genre: classical-piano
genre: choral
genre: chamber-music
isrc code: DES380005715
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T13:59:46+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6c9e6dabcd81d61d2121cf2261ee26fee8d62f390571fd3f7ca966dfa90dadff
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960264
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960264
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES380005715
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T14:36:16Z
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c9e6dabcd81d61d2121cf2261ee26fee8d62f390571fd3f7ca966dfa90dadff. 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/DES380005715 — a six-check JSON result.
  date published: 2026-07-30T14:36:16Z
audio: Die erste Walpurgisnacht, Op. 60: "Kommt mit Zacken und mit Gabeln"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 98.198
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.364
  additional property: Energy
    type: PropertyValue
    value: 0.398
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.964
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.517
  additional property: Liveness
    type: PropertyValue
    value: 0.707
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.269
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.019
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die erste Walpurgisnacht, Op. 60: So weit gebracht, dass wir bei Nacht (Baritone, Chorus)
type: MusicRecording
duration: PT2M46S
duration ms: 166760
explicit: false
by artist: Felix Mendelssohn
by artist: MDR Leipzig Radio Chorus
by artist: Kurt Masur
by artist: Leipzig Gewandhaus Orchestra
by artist: Siegfried Lorenz
in album: Mendelssohn Bartholdy: Die Erste Walpurgisnacht / Infelice / Ouverture zum Marchen von der schonen Melusine
  type: MusicAlbum
  date published: 1974
popularity: 2
genre: classical
genre: early-romantic-era
genre: german-romanticism
genre: classical-piano
genre: choral
genre: chamber-music
isrc code: DES380005716
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T02:36:13+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x675fbcc22b75c39298d0f6b9143aed04c9de4483bb69d9d183e018d26317ed63
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES380005716
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x675fbcc22b75c39298d0f6b9143aed04c9de4483bb69d9d183e018d26317ed63. 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/DES380005716 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Die erste Walpurgisnacht, Op. 60: So weit gebracht, dass wir bei Nacht (Baritone, Chorus)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.168
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.195
  additional property: Energy
    type: PropertyValue
    value: 0.289
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.963
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.003
  additional property: Liveness
    type: PropertyValue
    value: 0.668
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.145
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.466
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die erste Walpurgisnacht, Op. 60: Hilf, ach hilf mir, Kriegsgeselle (Tenor, Male Chorus)
type: MusicRecording
duration: PT1M1S
duration ms: 61266
explicit: false
by artist: Felix Mendelssohn
by artist: MDR Leipzig Radio Chorus
by artist: Kurt Masur
by artist: Leipzig Gewandhaus Orchestra
by artist: Eberhard Büchner
in album: Mendelssohn Bartholdy: Die Erste Walpurgisnacht / Infelice / Ouverture zum Marchen von der schonen Melusine
  type: MusicAlbum
  date published: 1974
popularity: 2
genre: classical
genre: early-romantic-era
genre: german-romanticism
genre: classical-piano
genre: choral
genre: chamber-music
isrc code: DES380005717
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T15:00:14+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5153a8faf0811cd84d1940e83a02522aee1e0c1ffe4d889ac9a81777c068ff61
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960418
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960418
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES380005717
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:20:15Z
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5153a8faf0811cd84d1940e83a02522aee1e0c1ffe4d889ac9a81777c068ff61. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES380005717 — a six-check JSON result.
  date published: 2026-07-31T15:20:15Z
audio: Die erste Walpurgisnacht, Op. 60: Hilf, ach hilf mir, Kriegsgeselle (Tenor, Male Chorus)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 110.571
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.62
  additional property: Energy
    type: PropertyValue
    value: 0.451
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.904
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.289
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.487
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.288
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die erste Walpurgisnacht, Op. 60: Die Flamme reinigt sich vom Rauch (Baritone, Chorus)
type: MusicRecording
duration: PT2M17S
duration ms: 137773
explicit: false
by artist: Felix Mendelssohn
by artist: MDR Leipzig Radio Chorus
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track: Symphony No. 5 in C-Sharp Minor: I. Trauermarsch (from bar 152)
track: Concerto for Trumpet & Orchestra: II. Nocturne: Andantino
track: Concerto No. 1 for Trumpet & Chamber Orchestra: I. Moderato - Presto
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track: Concerto for Trumpet & Orchestra: III. Finale: Allegro
track: Pictures at an Exhibition: Promenade
track: Concerto for 2 Trumpets in C Major, RV 537: I. Allegro
track: Pictures at an Exhibition: VI. Samuel Goldenberg and Schmuyle
track: Concerto for 2 Trumpets in C Major, RV 537: II. Largo
track: Trumpet Concerto No. 1, Op. 42: I. Andante - Allegro
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track: Concerto for 2 Trumpets in C Major, RV 537: III. Allegro
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track: American Concerto for Trumpet
track: On the Town: II. Lonely Town: Pas de Deux
track: Concerto for Trumpet & Orchestra (Live): Trumpet Concerto
track: Fanfare for the Common Man
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track: Petrushka: Tableau 3: Dance of the Ballerina
track: Trumpet Concerto in E-Flat Major, Hob. VIIe:1: II. Andante cantabile
track: Trumpet Concerto in E-Flat Major, Hob. VIIe:1: III. Finale: Allegro
track: Concerto for Trumpet & Small Orchestra, Op. 43: I. Allegro
track: Pini di Roma (Pines of Rome), P. 141: II. Pini presso una catacomba (Pines Near a Catacomb)
track: Concerto for Trumpet & Small Orchestra, Op. 43: II. Lento
track: Symphony No. 3 in D Minor: III. Comodo. Scherzando. Ohne Hast (from bar 3 of rehearsal number 13)
track: Symphony No. 9 in D Major: III. Rondo-Burleske: Allegro assai (bar 9 of rehearsal number 36-bar 23 of rehearsal number 38)
track: The Unanswered Question
track: Messiah, HWV 56: Part III: Aria: The trumpet shall sound
track: Mass in B Minor, BWV 232: Patrem omnipotentem
track: Mass in B Minor, BWV 232: Gloria in excelsis Deo

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Concerto No. 1 for Trumpet & Chamber Orchestra: I. Moderato - Presto
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duration: PT4M2S
duration ms: 242952
explicit: false
by artist: Charles Chaynes
by artist: Philip Smith
by artist: New York Philharmonic
by artist: Kurt Masur
in album: The Philip Smith Collection (Live)
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  date published: 2015-05-12
isrc code: USB8U1514685
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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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-08T03:20:19Z
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Blumine (Live)
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duration: PT6M48S
duration ms: 408176
explicit: false
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by artist: Philip Smith
by artist: New York Philharmonic
by artist: Alan Gilbert
in album: The Philip Smith Collection (Live)
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  date published: 2015-05-12
genre: classical
genre: orchestra
genre: orchestral
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additional property: OTSBitcoinBlockVerifyURL
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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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-08T03:20:19Z
audio: Blumine (Live)
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Concerto for Trumpet & Orchestra: III. Finale: Allegro
type: MusicRecording
duration: PT3M4S
duration ms: 184088
explicit: false
by artist: Henri Tomasi
by artist: Philip Smith
by artist: New York Philharmonic
by artist: Zubin Mehta
in album: The Philip Smith Collection (Live)
  type: MusicAlbum
  date published: 2015-05-12
isrc code: USB8U1514670
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSHash
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
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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 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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Pictures at an Exhibition: Promenade
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duration: PT1M36S
duration ms: 96850
explicit: false
by artist: Modest Mussorgsky
by artist: Maurice Ravel
by artist: Philip Smith
by artist: New York Philharmonic
by artist: Alan Gilbert
in album: The Philip Smith Collection (Live)
  type: MusicAlbum
  date published: 2015-05-12
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: USB8U1514650
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
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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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-29T13:09:35Z
audio: Pictures at an Exhibition: Promenade
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Concerto for 2 Trumpets in C Major, RV 537: I. Allegro
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duration: PT2M48S
duration ms: 168965
explicit: false
by artist: Antonio Vivaldi
by artist: Philip Smith
by artist: Wynton Marsalis
by artist: New York Philharmonic
by artist: Zubin Mehta
in album: The Philip Smith Collection (Live)
  type: MusicAlbum
  date published: 2015-05-12
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: USB8U1514671
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
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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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de649315512137b2cb07348e9e22921d73012f462d14c0506316e4ea45762ab. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1514671 — a six-check JSON result.
  date published: 2026-07-29T19:35:34Z
audio: Concerto for 2 Trumpets in C Major, RV 537: I. Allegro
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Pictures at an Exhibition: VI. Samuel Goldenberg and Schmuyle
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duration: PT2M25S
duration ms: 145638
explicit: false
by artist: Modest Mussorgsky
by artist: Maurice Ravel
by artist: Philip Smith
by artist: New York Philharmonic
by artist: Alan Gilbert
in album: The Philip Smith Collection (Live)
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  date published: 2015-05-12
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
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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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23a84316d609e2524f74a6d8acfcae48f42265de138b3af5be20d0c83b144cb. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/USB8U1514651 — a six-check JSON result.
  date published: 2026-07-30T16:01:17Z
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Concerto for 2 Trumpets in C Major, RV 537: II. Largo
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duration: PT1M5S
duration ms: 65338
explicit: false
by artist: Antonio Vivaldi
by artist: Philip Smith
by artist: Wynton Marsalis
by artist: New York Philharmonic
by artist: Zubin Mehta
in album: The Philip Smith Collection (Live)
  type: MusicAlbum
  date published: 2015-05-12
genre: classical
genre: early-music
genre: baroque
genre: concerto
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additional property: CopyrightRegisteredAt
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
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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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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Trumpet Concerto No. 1, Op. 42: I. Andante - Allegro
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  date published: 2026-07-31T08:26:41Z
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An American in Paris: Andantino (bar 5 of rehearsal number 45-47)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Concerto for 2 Trumpets in C Major, RV 537: III. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T07:28:30Z
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An American in Paris: from rehearsal number 96
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T08:26:41Z
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That's a Plenty (Arr. for Brass Quintet) [Live]
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T09:57:33Z
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American Concerto for Trumpet
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subject of: OpenTimestamps Proof of Existence
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On the Town: II. Lonely Town: Pas de Deux
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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 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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: On the Town: II. Lonely Town: Pas de Deux
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Concerto for Trumpet & Orchestra (Live): Trumpet Concerto
type: MusicRecording
duration: PT14M48S
duration ms: 888646
explicit: false
by artist: Joseph Turrin
by artist: Philip Smith
by artist: New York Philharmonic
by artist: Erich Leinsdorf
in album: The Philip Smith Collection (Live)
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isrc code: USB8U1514677
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1514677
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 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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd6b8af2dda45309a6b1fc604e0bdb697a80520062e8b6e52e55f2abaa105536. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1514677 — a six-check JSON result.
  date published: 2026-07-31T13:04:34Z
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Fanfare for the Common Man
type: MusicRecording
duration: PT3M31S
duration ms: 211526
explicit: false
by artist: Aaron Copland
by artist: Philip Smith
by artist: New York Philharmonic
by artist: Alan Gilbert
in album: The Philip Smith Collection (Live)
  type: MusicAlbum
  date published: 2015-05-12
genre: classical
genre: orchestra
isrc code: USB8U1514657
additional property: CopyrightID
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additional property: OTSBitcoinBlock
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1514657
additional property: OTSTimestamp
  type: PropertyValue
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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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb05b54fe7499c81e4f441c97e6fa43225d018b40c3df4152a8156fa198d0fd1d. 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/USB8U1514657 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Fanfare for the Common Man
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Trumpet Concerto in E-Flat Major, Hob. VIIe:1: I. Allegro
type: MusicRecording
duration: PT5M53S
duration ms: 353787
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by artist: Joseph Haydn
by artist: Philip Smith
by artist: New York Philharmonic
by artist: Zubin Mehta
in album: The Philip Smith Collection (Live)
  type: MusicAlbum
  date published: 2015-05-12
isrc code: USB8U1514678
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSVerificationAPI
  type: PropertyValue
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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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb05d12b6b7f864670589874aed1b2a8e4cd0ba8726434e649c14f07468f776c. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1514678 — a six-check JSON result.
  date published: 2026-07-30T18:46:00Z
audio: Trumpet Concerto in E-Flat Major, Hob. VIIe:1: I. Allegro
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Petrushka: Tableau 3: Dance of the Ballerina
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duration: PT4M6S
duration ms: 246277
explicit: false
by artist: Igor Stravinsky
by artist: Philip Smith
by artist: New York Philharmonic
by artist: Alan Gilbert
in album: The Philip Smith Collection (Live)
  type: MusicAlbum
  date published: 2015-05-12
isrc code: USB8U1514658
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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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 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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T07:28:30Z
audio: Petrushka: Tableau 3: Dance of the Ballerina
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Trumpet Concerto in E-Flat Major, Hob. VIIe:1: II. Andante cantabile
type: MusicRecording
duration: PT3M17S
duration ms: 197860
explicit: false
by artist: Joseph Haydn
by artist: Philip Smith
by artist: New York Philharmonic
by artist: Zubin Mehta
in album: The Philip Smith Collection (Live)
  type: MusicAlbum
  date published: 2015-05-12
isrc code: USB8U1514679
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-08T03:22:41Z
audio: Trumpet Concerto in E-Flat Major, Hob. VIIe:1: II. Andante cantabile
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Trumpet Concerto in E-Flat Major, Hob. VIIe:1: III. Finale: Allegro
type: MusicRecording
duration: PT4M29S
duration ms: 269721
explicit: false
by artist: Joseph Haydn
by artist: Philip Smith
by artist: New York Philharmonic
by artist: Zubin Mehta
in album: The Philip Smith Collection (Live)
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  date published: 2015-05-12
isrc code: USB8U1514680
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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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-30T21:35:24Z
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Concerto for Trumpet & Small Orchestra, Op. 43: I. Allegro
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duration: PT4M33S
duration ms: 273081
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by artist: Jacques Hétu
by artist: Philip Smith
by artist: New York Philharmonic
by artist: Kurt Masur
in album: The Philip Smith Collection (Live)
  type: MusicAlbum
  date published: 2015-05-12
isrc code: USB8U1514681
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additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1514681
additional property: OTSTimestamp
  type: PropertyValue
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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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec3449e1eb8e54f2dc6ed895e7efc520ee8d30e94b3b4359ae58a30173b4f1b4. 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/USB8U1514681 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Concerto for Trumpet & Small Orchestra, Op. 43: I. Allegro
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Pini di Roma (Pines of Rome), P. 141: II. Pini presso una catacomba (Pines Near a Catacomb)
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duration: PT1M16S
duration ms: 76901
explicit: false
by artist: Ottorino Respighi
by artist: Philip Smith
by artist: New York Philharmonic
by artist: Alan Gilbert
in album: The Philip Smith Collection (Live)
  type: MusicAlbum
  date published: 2015-05-12
isrc code: USB8U1514661
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1514661
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T08:26:41Z
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac914e3cc8946a25974aac404adc65a99370f49c96c967d423f7f9bb91a30fd5. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USB8U1514661 — a six-check JSON result.
  date published: 2026-07-31T08:26:41Z
audio: Pini di Roma (Pines of Rome), P. 141: II. Pini presso una catacomba (Pines Near a Catacomb)
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Concerto for Trumpet & Small Orchestra, Op. 43: II. Lento
type: MusicRecording
duration: PT5M30S
duration ms: 330228
explicit: false
by artist: Jacques Hétu
by artist: Philip Smith
by artist: New York Philharmonic
by artist: Kurt Masur
in album: The Philip Smith Collection (Live)
  type: MusicAlbum
  date published: 2015-05-12
isrc code: USB8U1514682
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1514682
additional property: OTSTimestamp
  type: PropertyValue
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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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cda2ec9c566db76e368a41896c707057c51a0a2ce1ce6a4933e1bbe5f99da7c. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1514682 — a six-check JSON result.
  date published: 2026-07-30T18:23:33Z
audio: Concerto for Trumpet & Small Orchestra, Op. 43: II. Lento
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Symphony No. 3 in D Minor: III. Comodo. Scherzando. Ohne Hast (from bar 3 of rehearsal number 13)
type: MusicRecording
duration: PT11M45S
duration ms: 705077
explicit: false
by artist: Gustav Mahler
by artist: Philip Smith
by artist: New York Philharmonic
by artist: Alan Gilbert
in album: The Philip Smith Collection (Live)
  type: MusicAlbum
  date published: 2015-05-12
genre: classical
genre: orchestra
genre: orchestral
isrc code: USB8U1514662
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1514662
additional property: OTSTimestamp
  type: PropertyValue
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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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc84016aac42deb6e7a3203debbf088d5b6c4a0e0a5bbefbad76410c6329ac67b. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1514662 — a six-check JSON result.
  date published: 2026-07-31T08:38:45Z
audio: Symphony No. 3 in D Minor: III. Comodo. Scherzando. Ohne Hast (from bar 3 of rehearsal number 13)
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Symphony No. 9 in D Major: III. Rondo-Burleske: Allegro assai (bar 9 of rehearsal number 36-bar 23 of rehearsal number 38)
type: MusicRecording
duration: PT2M43S
duration ms: 163120
explicit: false
by artist: Gustav Mahler
by artist: Philip Smith
by artist: New York Philharmonic
by artist: Alan Gilbert
in album: The Philip Smith Collection (Live)
  type: MusicAlbum
  date published: 2015-05-12
genre: classical
genre: orchestra
genre: orchestral
isrc code: USB8U1514663
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1514663
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T13:06:57Z
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefd8338466fb6fbd1f9e0078be0e77be7c163412975a52509e68499b878f40a1. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1514663 — a six-check JSON result.
  date published: 2026-07-31T13:06:57Z
audio: Symphony No. 9 in D Major: III. Rondo-Burleske: Allegro assai (bar 9 of rehearsal number 36-bar 23 of rehearsal number 38)
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The Unanswered Question
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duration: PT5M55S
duration ms: 355520
explicit: false
by artist: Charles Ives
by artist: Philip Smith
by artist: New York Philharmonic
by artist: Alan Gilbert
in album: The Philip Smith Collection (Live)
  type: MusicAlbum
  date published: 2015-05-12
isrc code: USB8U1514664
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: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960455
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1514664
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T19:53:13Z
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73feab798576bda67a498725cac7eb8a9ec8cfe744b2426d90bebe8939d54b01. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1514664 — a six-check JSON result.
  date published: 2026-07-31T19:53:13Z
audio: The Unanswered Question
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Messiah, HWV 56: Part III: Aria: The trumpet shall sound
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duration: PT4M29S
duration ms: 269298
explicit: false
by artist: George Frideric Handel
by artist: Jonathan Lemalu
by artist: Philip Smith
by artist: New York Philharmonic
by artist: Alan Gilbert
in album: The Philip Smith Collection (Live)
  type: MusicAlbum
  date published: 2015-05-12
genre: classical
genre: opera
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
genre: choral
isrc code: USB8U1514665
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
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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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f10709074b5898a121c60d9e6f45510f0d426f58f5d45393fd46ca3ae4e4985. 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/USB8U1514665 — a six-check JSON result.
  date published: 2026-07-08T03:53:27Z
audio: Messiah, HWV 56: Part III: Aria: The trumpet shall sound
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Mass in B Minor, BWV 232: Patrem omnipotentem
type: MusicRecording
duration: PT1M56S
duration ms: 116475
explicit: false
by artist: Johann Sebastian Bach
by artist: Philip Smith
by artist: New York Choral Artists
by artist: New York Philharmonic
by artist: Alan Gilbert
in album: The Philip Smith Collection (Live)
  type: MusicAlbum
  date published: 2015-05-12
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: USB8U1514666
additional property: CopyrightID
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T22:27:44Z
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b20ca3786180bd79285856ddae330317fc09adc33ccf3adcb6aebf535730bd0. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/USB8U1514666 — a six-check JSON result.
  date published: 2026-07-31T22:27:44Z
audio: Mass in B Minor, BWV 232: Patrem omnipotentem
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Mass in B Minor, BWV 232: Gloria in excelsis Deo
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duration: PT5M56S
duration ms: 356900
explicit: false
by artist: Johann Sebastian Bach
by artist: Philip Smith
by artist: New York Choral Artists
by artist: New York Philharmonic
by artist: Alan Gilbert
in album: The Philip Smith Collection (Live)
  type: MusicAlbum
  date published: 2015-05-12
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: USB8U1514667
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
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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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x852ac11f0e9cdecac5e68f51b4ac5f6528db74a0e0a3b2987e43eb6f5992cfe1. 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/USB8U1514667 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Mass in B Minor, BWV 232: Gloria in excelsis Deo
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The Glenn Dicterow Collection, Vol. 3
type: MusicAlbum
date published: 2014-06-03

The Glenn Dicterow Collection, Vol. 2
type: MusicAlbum
date published: 2014-06-03

The Glenn Dicterow Collection
type: MusicAlbum
date published: 2014-06-03

Mendelssohn: Early Symphonies
type: MusicAlbum
date published: 2023-01-27

Kurt Masur Conducts the Gewandhausorchester Leipzig
type: MusicAlbum
date published: 2022-04-15
track: Prokofiev: Alexander Nevsky, Op. 78: V. The Battle on the Ice
  type: MusicRecording
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  by artist: Sergei Prokofiev
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  by artist: State Choir Latvija
  by artist: Gewandhausorchester
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  genre: classical
  genre: orchestra
  genre: neoclassical
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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 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49ae9b363e292497571291849b5e1faed6228e32aa2249be2d4cdd86a44e5af3. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEA809100045 — a six-check JSON result.
    date published: 2026-07-06T06:56:49Z
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Tchaikovsky: Symphonies, Romeo and Juliet, Francesca da Rimini & Manfred
type: MusicAlbum
date published: 2022-02-14

Liszt: Orchestral Works, Vol. 2. A Faust Symphony, A Dante Symphony & Mephisto Waltzes
type: MusicAlbum
date published: 2022-02-14

Liszt: Orchestral Works, Vol. 1. The Weimar Symphonic Poems: Les préludes, Mazeppa, Prometheus...
type: MusicAlbum
date published: 2022-02-14
track: Liszt: Ce qu'on entend sur la montagne. S. 95
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  by artist: Kurt Masur
  by artist: Gewandhausorchester
  by artist: Gerhard Bosse
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    type: MusicAlbum
    date published: 2022-02-14
  genre: classical
  genre: late-romantic-era
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
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  additional property: OTSTimestamp
    type: PropertyValue
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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 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a3ac1872c6967041feef04a95be2a697de3fb4d3c34edb22578fca173bbeea2. 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/GBAYC9600240 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
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track: Liszt: Les préludes, S. 97
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  by artist: Kurt Masur
  by artist: Gewandhausorchester
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    type: MusicAlbum
    date published: 2022-02-14
  genre: classical
  genre: late-romantic-era
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  additional property: OTSVerificationAPI
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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 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f966107b1ad23c4a2272e2d9f6f1621a9a001087853248c3582237b34b5f20c. 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/GBAYC8500054 — a six-check JSON result.
    date published: 2026-08-01T00:10:46Z
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  additional property: OTSBitcoinBlock
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  additional property: OTSVerificationAPI
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  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Liszt: Hamlet, S. 104

CopyrightChainExplorerURL
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value: https://explorer.copyrightchains.com/tx/0x07e03a8fe2eedd431cc3ffd38767d65fbd998c2812580f1c21721cd63b564ab9

OTSHash
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OTSBitcoinBlock
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value: 960455

OTSBitcoinBlockVerifyURL
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value: https://blockstream.info/api/block-height/960455

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYD9500034

OTSTimestamp
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value: 2026-07-31T19:53:13Z

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 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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07e03a8fe2eedd431cc3ffd38767d65fbd998c2812580f1c21721cd63b564ab9. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYD9500034 — a six-check JSON result.
date published: 2026-07-31T19:53:13Z

Liszt: Hamlet, S. 104
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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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additional property: Instrumentalness
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additional property: Liveness
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additional property: Valence (Positivity)
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Beethoven: Unknown Masterworks, Vol. 1
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Schumann: Cellokonzert A-Moll - Tschaikowsky: Rokoko-Variationen
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Yuja Wang Plays Mendelssohn (Live)
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by artist: Yuja Wang
by artist: Kirill Troussov
by artist: David Aaron Carpenter
by artist: Maxim Rysanov
by artist: Sol Gabetta
by artist: Leigh Mesh
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popularity: 6
genre: classical
genre: early-romantic-era
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genre: classical-piano
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T13:09:35Z
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Franck: Psyché (Live)
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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
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  by artist: Orchestre Mondial des Jeunesses Musicales
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-31T12:24:41Z
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track: Psyché, FWV 47: III. Les jardins d'Éros - Live
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  subject of: OpenTimestamps Proof of Existence
  audio: Psyché, FWV 47: III. Les jardins d'Éros - Live
track: Psyché, FWV 47: IV. Lento - Live
track: Psyché, FWV 47: V. Psyché et Éros - Live
track: Psyché, FWV 47: VI. Le Châtiment. Quasi lento - Live
track: Psyché, FWV 47: VII. Souffrances et Plaintes de Psyché - Live

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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 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

OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:20:19Z

Psyché, FWV 47: III. Les jardins d'Éros - Live
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Psyché, FWV 47: IV. Lento - Live
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T17:29:52Z
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Psyché, FWV 47: V. Psyché et Éros - Live
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T23:51:35Z
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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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be7a162e67513dc958bb12718d35627e6b88991c8cad707f7ec300e80902c46. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/DEN962202726 — a six-check JSON result.
  date published: 2026-07-31T09:09:19Z
audio: Psyché, FWV 47: VI. Le Châtiment. Quasi lento - Live
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  additional property: Speechiness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Psyché, FWV 47: VII. Souffrances et Plaintes de Psyché - Live
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duration: PT11M33S
duration ms: 693760
explicit: false
by artist: César Franck
by artist: Marthe Keller
by artist: Chœur La Psallette
by artist: Orchestre Mondial des Jeunesses Musicales
by artist: Kurt Masur
in album: Franck: Psyché (Live)
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  date published: 2022-12-09
genre: chamber-music
isrc code: DEN962202727
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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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/DEN962202727
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:59:18Z
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec98ff4f7746ceb92778b64281e416abc451d877812e10ab522572c8ebe7a6b3. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/DEN962202727 — a six-check JSON result.
  date published: 2026-07-31T15:59:18Z
audio: Psyché, FWV 47: VII. Souffrances et Plaintes de Psyché - Live
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  additional property: Mode (Major/Minor)
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Beethoven: Symphonies Nos. 2 & 6
type: MusicAlbum
date published: 2016-12-30
track: Symphonie No. 6 in F Major, Op. 68 "Pastorale": I. Allegro ma non troppo
  type: MusicRecording
  duration: PT12M0S
  duration ms: 720266
  explicit: false
  by artist: Ludwig van Beethoven
  by artist: Kurt Masur
  by artist: Orchestre National De France
  in album: Beethoven: Symphonies Nos. 2 & 6
    type: MusicAlbum
    date published: 2016-12-30
  genre: classical
  genre: classical-piano
  genre: chamber-music
  isrc code: FRX201667407
  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: OTSHash
  additional property: OTSBitcoinBlock
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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/FRX201667407
  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 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0337018ebfd8057b3b1ab9dce6bf47791fd7ae7e50de1f29f432d35b3314091d. 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/FRX201667407 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Symphonie No. 6 in F Major, Op. 68 "Pastorale": I. Allegro ma non troppo
    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
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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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40 Most Beautiful Summer Classics
type: MusicAlbum
date published: 2008-05-01
track: Mendelssohn: A Midsummer Night's Dream, Op. 61, MWV M13: Wedding March
  type: MusicRecording
  duration: PT4M4S
  duration ms: 244426
  explicit: false
  by artist: Felix Mendelssohn
  by artist: Kurt Masur
  by artist: Gewandhausorchester
  in album: 40 Most Beautiful Summer Classics
    type: MusicAlbum
    date published: 2008-05-01
  popularity: 1
  genre: classical
  genre: early-romantic-era
  genre: german-romanticism
  genre: classical-piano
  genre: choral
  genre: chamber-music
  isrc code: DEA809105512
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
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    value: https://explorer.copyrightchains.com/tx/0x2a0820b837c4bc990b783169aa7563e462e957d3a347c64f94bc03664e4837bc
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960448
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA809105512
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T18:48:12Z
  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 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a0820b837c4bc990b783169aa7563e462e957d3a347c64f94bc03664e4837bc. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DEA809105512 — a six-check JSON result.
    date published: 2026-07-31T18:48:12Z
  audio: Mendelssohn: A Midsummer Night's Dream, Op. 61, MWV M13: Wedding March
    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
      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
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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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    additional property: Mode Name
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track: Vaughan Williams: The Lark Ascending (Excerpt)
  type: MusicRecording
  duration: PT6M4S
  duration ms: 364186
  explicit: false
  by artist: Ralph Vaughan Williams
  by artist: Andrew Davis
  by artist: Tasmin Little
  by artist: BBC Symphony Orchestra
  in album: 40 Most Beautiful Summer Classics
    type: MusicAlbum
    date published: 2008-05-01
  popularity: 33
  isrc code: DEA809100238
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956304
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA809100238
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  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 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0a4159f203e4ce141223358185eee2095b35653a900a2fc9bbbfddb65244aed. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA809100238 — a six-check JSON result.
    date published: 2026-07-02T03:55:08Z
  audio: Vaughan Williams: The Lark Ascending (Excerpt)
    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
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.122
    additional property: Energy
      type: PropertyValue
      value: 0.038
    additional property: Speechiness
      type: PropertyValue
      value: 0.054
    additional property: Acousticness
      type: PropertyValue
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    additional property: Instrumentalness
      type: PropertyValue
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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)
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    additional property: Key Name
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    additional property: Mode Name
      type: PropertyValue
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track: Rodrigo: Concierto de Aranjuez: II. Adagio (Excerpt)
  type: MusicRecording
  duration: PT5M10S
  duration ms: 310906
  explicit: false
  by artist: Joaquín Rodrigo
  by artist: Turibio Santos
  by artist: Claudio Scimone
  by artist: Orchestre National de l'Opéra de Monte-Carlo
  in album: 40 Most Beautiful Summer Classics
    type: MusicAlbum
    date published: 2008-05-01
  popularity: 1
  isrc code: FRZ207899020
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  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: Rodrigo: Concierto de Aranjuez: II. Adagio (Excerpt)
track: Tárrega : Recuerdos de la Alhambra
track: Satie: 3 Gymnopédies: No. 1, Lent et douloureux

CopyrightRegisteredAt
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CopyrightChainExplorerURL
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value: https://explorer.copyrightchains.com/tx/0x64efba3a8d0b37b3d8322ae731beb53acdee671ba6df56eb27f6894a62b5315c

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/FRZ207899020

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 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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64efba3a8d0b37b3d8322ae731beb53acdee671ba6df56eb27f6894a62b5315c. 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/FRZ207899020 — a six-check JSON result.
date published: 2026-07-08T03:22:41Z

Rodrigo: Concierto de Aranjuez: II. Adagio (Excerpt)
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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
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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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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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Tárrega : Recuerdos de la Alhambra
type: MusicRecording
duration: PT3M26S
duration ms: 206026
explicit: false
by artist: Francisco Tárrega
by artist: Wolfgang Lendle
in album: 40 Most Beautiful Summer Classics
  type: MusicAlbum
  date published: 2008-05-01
popularity: 1
genre: spanish-classical
genre: late-romantic-era
isrc code: DEA808801400
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xe41ce9693247174b4a88ea6b8012a726d6f6e4daf60fc9d3d1d101cbedbc2812
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960410
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA808801400
additional property: OTSTimestamp
  type: PropertyValue
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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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe41ce9693247174b4a88ea6b8012a726d6f6e4daf60fc9d3d1d101cbedbc2812. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/DEA808801400 — a six-check JSON result.
  date published: 2026-07-31T13:50:38Z
audio: Tárrega : Recuerdos de la Alhambra
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 109.912
  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
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  additional property: Danceability
    type: PropertyValue
    value: 0.276
  additional property: Energy
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  additional property: Speechiness
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subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T03:55:08Z
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track: Die erste Walpurgisnacht, Op. 60: I. Es lacht der Mai (Allegro vivace non troppo) - a Druid
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  audio: Die erste Walpurgisnacht, Op. 60: I. Es lacht der Mai (Allegro vivace non troppo) - a Druid
track: Die erste Walpurgisnacht, Op. 60: II. Könnt ihr so verwegen handeln (Allegretto non troppo)
track: Die erste Walpurgisnacht, Op. 60: III. Wer Opfer heut' zu bringen scheut (Andandte maestoso)
track: Die erste Walpurgisnacht, Op. 60: IV. Verteilt euch, wack're Männer, hier (Allegro leggiero)
track: Die erste Walpurgisnacht, Op. 60: VI. Kommt mit Zacken und mit Gabeln (Allegro molto)
track: Die erste Walpurgisnacht, Op. 60: VII. So weit gebracht, daß wir bei Nacht (L'istesso tempo. Andante maestoso)
track: Die erste Walpurgisnacht, Op. 60: VIII. Hilf, ach hilf mir, Kriegsgeselle (Allegro non troppo)
track: Die erste Walpurgisnacht, Op. 60: IX. Die Flamme reinigt sich vom Rauch (Andante maestoso)
track: Infelice in B-Flat Major, Op. 94
track: Trumpet Overture in C Major, Op. 101
track: Das Märchen von der schönen Melusine, Op. 32
track: Meeresstille und glückliche Fahrt, Op. 27

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  date published: 2026-07-02T03:55:08Z
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Die erste Walpurgisnacht, Op. 60: IV. Verteilt euch, wack're Männer, hier (Allegro leggiero)
type: MusicRecording
duration: PT1M42S
duration ms: 102173
explicit: false
by artist: Felix Mendelssohn
by artist: MDR Leipzig Radio Chorus
by artist: Gewandhausorchester
by artist: Kurt Masur
in album: Mendelssohn: Die erste Walpurgisnacht
  type: MusicAlbum
  date published: 2015-06-01
genre: classical
genre: early-romantic-era
genre: german-romanticism
genre: classical-piano
genre: choral
genre: chamber-music
isrc code: NLY331507092
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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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/NLY331507092
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a6e0387543f15c5f6ee2fdbc49819bd6aaef06a47d8a7d48df23273cd4f145. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331507092 — a six-check JSON result.
  date published: 2026-07-02T03:55:08Z
audio: Die erste Walpurgisnacht, Op. 60: IV. Verteilt euch, wack're Männer, hier (Allegro leggiero)
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Die erste Walpurgisnacht, Op. 60: VI. Kommt mit Zacken und mit Gabeln (Allegro molto)
type: MusicRecording
duration: PT5M58S
duration ms: 358106
explicit: false
by artist: Felix Mendelssohn
by artist: MDR Leipzig Radio Chorus
by artist: Gewandhausorchester
by artist: Kurt Masur
in album: Mendelssohn: Die erste Walpurgisnacht
  type: MusicAlbum
  date published: 2015-06-01
genre: classical
genre: early-romantic-era
genre: german-romanticism
genre: classical-piano
genre: choral
genre: chamber-music
isrc code: NLY331507094
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331507094
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b943e1860e5a6e9753ae6cbb697999868272e07a70d3e9a49907362b4f781a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331507094 — a six-check JSON result.
  date published: 2026-07-02T03:55:08Z
audio: Die erste Walpurgisnacht, Op. 60: VI. Kommt mit Zacken und mit Gabeln (Allegro molto)
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Die erste Walpurgisnacht, Op. 60: VII. So weit gebracht, daß wir bei Nacht (L'istesso tempo. Andante maestoso)
type: MusicRecording
duration: PT2M46S
duration ms: 166760
explicit: false
by artist: Felix Mendelssohn
by artist: MDR Leipzig Radio Chorus
by artist: Gewandhausorchester
by artist: Kurt Masur
by artist: Siegfried Lorenz
in album: Mendelssohn: Die erste Walpurgisnacht
  type: MusicAlbum
  date published: 2015-06-01
genre: classical
genre: early-romantic-era
genre: german-romanticism
genre: classical-piano
genre: choral
genre: chamber-music
isrc code: NLY331507095
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/959128
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331507095
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-22T12:33:25Z
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f8ab47871bd93214a1f961e27d07df36c7b87dd1edcedbeb1b79d5f47588ed8. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/NLY331507095 — a six-check JSON result.
  date published: 2026-07-22T12:33:25Z
audio: Die erste Walpurgisnacht, Op. 60: VII. So weit gebracht, daß wir bei Nacht (L'istesso tempo. Andante maestoso)
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Die erste Walpurgisnacht, Op. 60: VIII. Hilf, ach hilf mir, Kriegsgeselle (Allegro non troppo)
type: MusicRecording
duration: PT1M1S
duration ms: 61266
explicit: false
by artist: Felix Mendelssohn
by artist: MDR Leipzig Radio Chorus
by artist: Gewandhausorchester
by artist: Kurt Masur
by artist: Eberhard Büchner
in album: Mendelssohn: Die erste Walpurgisnacht
  type: MusicAlbum
  date published: 2015-06-01
genre: classical
genre: early-romantic-era
genre: german-romanticism
genre: classical-piano
genre: choral
genre: chamber-music
isrc code: NLY331507096
additional property: CopyrightID
additional property: CopyrightStatus
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  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-06-27T06:48:17+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xcf7560db310041a797b095e01388e4433008bf6ec39c16040c98766299f1504f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331507096
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf7560db310041a797b095e01388e4433008bf6ec39c16040c98766299f1504f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331507096 — a six-check JSON result.
  date published: 2026-07-02T03:55:08Z
audio: Die erste Walpurgisnacht, Op. 60: VIII. Hilf, ach hilf mir, Kriegsgeselle (Allegro non troppo)
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Die erste Walpurgisnacht, Op. 60: IX. Die Flamme reinigt sich vom Rauch (Andante maestoso)
type: MusicRecording
duration: PT2M17S
duration ms: 137773
explicit: false
by artist: Felix Mendelssohn
by artist: MDR Leipzig Radio Chorus
by artist: Gewandhausorchester
by artist: Kurt Masur
by artist: Siegfried Lorenz
in album: Mendelssohn: Die erste Walpurgisnacht
  type: MusicAlbum
  date published: 2015-06-01
genre: classical
genre: early-romantic-era
genre: german-romanticism
genre: classical-piano
genre: choral
genre: chamber-music
isrc code: NLY331507097
additional property: CopyrightID
additional property: CopyrightStatus
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  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-07-06T00:56:12+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 956856
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956856
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331507097
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T01:25:57Z
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd3fbbef658b8694e82b2ce09390e05f1cc046dd33dda3daa83d6d7d63ad2ff. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331507097 — a six-check JSON result.
  date published: 2026-07-06T01:25:57Z
audio: Die erste Walpurgisnacht, Op. 60: IX. Die Flamme reinigt sich vom Rauch (Andante maestoso)
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Infelice in B-Flat Major, Op. 94
type: MusicRecording
duration: PT8M42S
duration ms: 522866
explicit: false
by artist: Felix Mendelssohn
by artist: Gewandhausorchester
by artist: Kurt Masur
by artist: Edda Moser
in album: Mendelssohn: Die erste Walpurgisnacht
  type: MusicAlbum
  date published: 2015-06-01
genre: classical
genre: early-romantic-era
genre: german-romanticism
genre: classical-piano
genre: choral
genre: chamber-music
isrc code: NLY331507098
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T01:51:46+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x1a2b3152e69ab9d43157dd7d25d4ccc6de2c8eac4e96d74bc0cfd5073c6db83d
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331507098
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a2b3152e69ab9d43157dd7d25d4ccc6de2c8eac4e96d74bc0cfd5073c6db83d. 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/NLY331507098 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Infelice in B-Flat Major, Op. 94
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Trumpet Overture in C Major, Op. 101
type: MusicRecording
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Das Märchen von der schönen Melusine, Op. 32
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Meeresstille und glückliche Fahrt, Op. 27
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  date published: 2026-07-08T03:39:04Z
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Felix Mendelssohn Bartholdy: A Midsummer Night's Dream, Die erste Walpurgisnacht
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Wolfgang Amadeus Mozart: Klarinettenkonzert, Klavierkonzert No. 21, Eine kleine Nachtmusik (Best of Wolfgang Amadeus Mozart: Clarinet Concerto, Piano Concerto No. 21 & A Little Night Music)
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track: Clarinet Concerto in A Major, K. 622: II. Adagio
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track: Clarinet Concerto in A Major, K. 622: III. Rondo - Allegro
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  audio: Clarinet Concerto in A Major, K. 622: III. Rondo - Allegro
track: Piano Concerto No. 21 in C Major, K. 467: I. Allegro maestoso
track: Piano Concerto No. 21 in C Major, K. 467: II. Andante
track: Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": I. Allegro
track: Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": II. Romance - Andante
track: Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": III. Menuetto - Allegretto
track: Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": IV. Rondo - Allegro

Wolfgang Amadeus Mozart: Klarinettenkonzert, Klavierkonzert No. 21, Eine kleine Nachtmusik (Best of Wolfgang Amadeus Mozart: Clarinet Concerto, Piano Concerto No. 21 & A Little Night Music)
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date published: 2026-07-29T11:30:20Z

Clarinet Concerto in A Major, K. 622: III. Rondo - Allegro
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Piano Concerto No. 21 in C Major, K. 467: I. Allegro maestoso
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duration: PT13M44S
duration ms: 824906
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by artist: Wolfgang Amadeus Mozart
by artist: Annerose Schmidt
by artist: Dresdner Philhamonie
by artist: Kurt Masur
in album: Wolfgang Amadeus Mozart: Klarinettenkonzert, Klavierkonzert No. 21, Eine kleine Nachtmusik (Best of Wolfgang Amadeus Mozart: Clarinet Concerto, Piano Concerto No. 21 & A Little Night Music)
  type: MusicAlbum
  date published: 1982
popularity: 3
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
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isrc code: DES380531204
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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 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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Piano Concerto No. 21 in C Major, K. 467: II. Andante
type: MusicRecording
duration: PT6M14S
duration ms: 374613
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Annerose Schmidt
by artist: Dresdner Philhamonie
by artist: Kurt Masur
in album: Wolfgang Amadeus Mozart: Klarinettenkonzert, Klavierkonzert No. 21, Eine kleine Nachtmusik (Best of Wolfgang Amadeus Mozart: Clarinet Concerto, Piano Concerto No. 21 & A Little Night Music)
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  date published: 1982
popularity: 13
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
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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 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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
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Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": I. Allegro
type: MusicRecording
duration: PT7M47S
duration ms: 467520
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Rundfunk-Sinfonieorchester Leipzig
by artist: Max Pommer
in album: Wolfgang Amadeus Mozart: Klarinettenkonzert, Klavierkonzert No. 21, Eine kleine Nachtmusik (Best of Wolfgang Amadeus Mozart: Clarinet Concerto, Piano Concerto No. 21 & A Little Night Music)
  type: MusicAlbum
  date published: 1982
popularity: 13
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: DES380613001
additional property: CopyrightID
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
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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 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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": I. Allegro
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Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": II. Romance - Andante
type: MusicRecording
duration: PT6M8S
duration ms: 368906
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Rundfunk-Sinfonieorchester Leipzig
by artist: Max Pommer
in album: Wolfgang Amadeus Mozart: Klarinettenkonzert, Klavierkonzert No. 21, Eine kleine Nachtmusik (Best of Wolfgang Amadeus Mozart: Clarinet Concerto, Piano Concerto No. 21 & A Little Night Music)
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  date published: 1982
popularity: 8
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
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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 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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T19:35:34Z
audio: Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": II. Romance - Andante
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Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": III. Menuetto - Allegretto
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duration: PT2M22S
duration ms: 142413
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Rundfunk-Sinfonieorchester Leipzig
by artist: Max Pommer
in album: Wolfgang Amadeus Mozart: Klarinettenkonzert, Klavierkonzert No. 21, Eine kleine Nachtmusik (Best of Wolfgang Amadeus Mozart: Clarinet Concerto, Piano Concerto No. 21 & A Little Night Music)
  type: MusicAlbum
  date published: 1982
popularity: 5
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: DES380613003
additional property: CopyrightID
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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 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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": IV. Rondo - Allegro
type: MusicRecording
duration: PT6M16S
duration ms: 376640
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Rundfunk-Sinfonieorchester Leipzig
by artist: Max Pommer
in album: Wolfgang Amadeus Mozart: Klarinettenkonzert, Klavierkonzert No. 21, Eine kleine Nachtmusik (Best of Wolfgang Amadeus Mozart: Clarinet Concerto, Piano Concerto No. 21 & A Little Night Music)
  type: MusicAlbum
  date published: 1982
popularity: 6
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: DES380613004
additional property: CopyrightID
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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 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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T01:51:26Z
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Beethoven: Triple Concerto; Choral Fantasia; Coriolan & Egmont Overtures
type: MusicAlbum
date published: 2014-01-01

Aus der Neuen Welt: Best of Dvorák (Inspiration)
type: MusicAlbum
date published: 2014-08-01
track: Dvořák: Symphony No. 8 in G Major, Op. 88, B. 163: III. Allegretto grazioso
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  subject of: OpenTimestamps Proof of Existence
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Prokofiev: Symphony No. 5 & Suites from Romeo and Juliet
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date published: 2022-04-08

Bruckner: Symphonies Nos. 4 "Romantic" & 7
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date published: 2022-04-01

Tchaikovsky: The Piano Concertos
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-31T02:19:15Z
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Brahms: Symphonies, Overtures & Schicksalslied
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Schumann: Symphonies
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Masur conducts Alexander Nevsky
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-31T15:20:15Z
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-06-13T12:47:07Z
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-06-13T15:41:10Z
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OTSVerificationAPI
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value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA800115099

OTSTimestamp
type: PropertyValue
value: 2026-06-13T12:47:07Z

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 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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c414943de6509849ca87dea262109787a816bf762713e08b32888a00ca38c8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA800115099 — a six-check JSON result.
date published: 2026-06-13T12:47:07Z

Beethoven: Symphony No. 5 in C Minor, Op. 67: III. Allegro -
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 80.803
additional property: Musical Key
  type: PropertyValue
  value: 0
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.242
additional property: Energy
  type: PropertyValue
  value: 0.062
additional property: Speechiness
  type: PropertyValue
  value: 0.038
additional property: Acousticness
  type: PropertyValue
  value: 0.892
additional property: Instrumentalness
  type: PropertyValue
  value: 0.849
additional property: Liveness
  type: PropertyValue
  value: 0.577
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.306
additional property: Loudness (dB)
  type: PropertyValue
  value: -21.656
additional property: Key Name
  type: PropertyValue
  value: C
additional property: Mode Name
  type: PropertyValue
  value: Major

Beethoven: Symphony No. 5 in C Minor, Op. 67: IV. Allegro - Presto
type: MusicRecording
duration: PT10M34S
duration ms: 634318
explicit: false
by artist: Ludwig van Beethoven
by artist: Kurt Masur
by artist: New York Philharmonic
in album: Beethoven: Symphony No. 5
  type: MusicAlbum
  date published: 2020-05-15
popularity: 38
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: DEA800115101
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T10:19:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe2bd9fd898ee8eec5f8c8e9fdc75ef2e44c6c6ff40bb1142d1096872539d04db
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA800115101
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2bd9fd898ee8eec5f8c8e9fdc75ef2e44c6c6ff40bb1142d1096872539d04db. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA800115101 — a six-check JSON result.
  date published: 2026-06-13T12:47:07Z
audio: Beethoven: Symphony No. 5 in C Minor, Op. 67: IV. Allegro - Presto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 85.555
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.25
  additional property: Energy
    type: PropertyValue
    value: 0.251
  additional property: Speechiness
    type: PropertyValue
    value: 0.033
  additional property: Acousticness
    type: PropertyValue
    value: 0.923
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.876
  additional property: Liveness
    type: PropertyValue
    value: 0.197
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.356
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.561
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Beethoven: Symphonies Nos. 3 & 5
type: MusicAlbum
date published: 2019-03-15

Shostakovich: Symphony No. 7 (Live)
type: MusicAlbum
date published: 2018-03-01

Beethoven: Symphonies Nos. 1 & 4
type: MusicAlbum
date published: 2016-11-01
track: Symphony No. 4 in B-Flat Major, Op. 60: IV. Finale. Allegro ma non troppo
  type: MusicRecording
  duration: PT6M40S
  duration ms: 400146
  explicit: false
  by artist: Ludwig van Beethoven
  by artist: Kurt Masur
  by artist: London Philharmonic Orchestra
  in album: Beethoven: Symphonies Nos. 1 & 4
    type: MusicAlbum
    date published: 2016-11-01
  genre: classical
  genre: classical-piano
  genre: chamber-music
  isrc code: GBHZU1609308
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-29T12:15:09+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x24185adc2d19f2af04953b2e2c6e57761e429f1dad9fb0d281230add199ed57f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960105
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960105
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBHZU1609308
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-29T12:35:17Z
  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 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24185adc2d19f2af04953b2e2c6e57761e429f1dad9fb0d281230add199ed57f. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/GBHZU1609308 — a six-check JSON result.
    date published: 2026-07-29T12:35:17Z
  audio: Symphony No. 4 in B-Flat Major, Op. 60: IV. Finale. Allegro ma non troppo
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 151.194
    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: 0.398
    additional property: Energy
      type: PropertyValue
      value: 0.21
    additional property: Speechiness
      type: PropertyValue
      value: 0.047
    additional property: Acousticness
      type: PropertyValue
      value: 0.895
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.846
    additional property: Liveness
      type: PropertyValue
      value: 0.695
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.519
    additional property: Loudness (dB)
      type: PropertyValue
      value: -23.971
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Major

Grandes Épocas de la Música. Beethoven: Concierto Op. 56, Sonata No. 10 Op.96
type: MusicAlbum
date published: 2015-09-08

The Philip Smith Collection, Album 3: The Concertos (Live)
type: MusicAlbum
date published: 2015-05-12

Kurt Masur - Kapellmeister-Edition, Vol. 3
type: MusicAlbum
date published: 2014-09-19

El-Khoury: Concerti for Violin, Horn & Clarinet (Live)
type: MusicAlbum
date published: 2014-08-05

Tchaïkovsky 'Live'
type: MusicAlbum
date published: 2013-04-08
track: Violin Concerto in D Major, Op. 35: I. Allegro moderato
  type: MusicRecording
  duration: PT18M26S
  duration ms: 1106146
  explicit: false
  by artist: Pyotr Ilyich Tchaikovsky
  by artist: Orchestre National De France
  by artist: Kurt Masur
  by artist: Sarah Nemtanu
  in album: Tchaïkovsky 'Live'
    type: MusicAlbum
    date published: 2013-04-08
  isrc code: FRZ131218010
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T17:45:19+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb7f928808520a9d8b43befbb3a0baceae70af9f76bb789af7ab87a274ee4251d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ131218010
  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 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7f928808520a9d8b43befbb3a0baceae70af9f76bb789af7ab87a274ee4251d. 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/FRZ131218010 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Violin Concerto in D Major, Op. 35: I. Allegro moderato
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 123.046
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.384
    additional property: Energy
      type: PropertyValue
      value: 0.096
    additional property: Speechiness
      type: PropertyValue
      value: 0.054
    additional property: Acousticness
      type: PropertyValue
      value: 0.909
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.045
    additional property: Liveness
      type: PropertyValue
      value: 0.209
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.191
    additional property: Loudness (dB)
      type: PropertyValue
      value: -25.589
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major

Bruch & Brahms: Violin Concertos
type: MusicAlbum
date published: 2009-09-21
track: Bruch: Violin Concerto No. 1 in G Minor, Op. 26: I. Prelude. Allegro moderato
  type: MusicRecording
  duration: PT7M56S
  duration ms: 476320
  explicit: false
  by artist: Max Bruch
  by artist: Sarah Chang
  by artist: Kurt Masur
  by artist: Dresdner Philharmonie
  in album: Bruch & Brahms: Violin Concertos
    type: MusicAlbum
    date published: 2009-09-21
  isrc code: GBAYC0902053
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-23T00:49:16+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x3ccac1dca94709b0ad2ae0b2a326b02637fd10fac902e1cc647818f2346cc8dd
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956304
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0902053
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  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 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ccac1dca94709b0ad2ae0b2a326b02637fd10fac902e1cc647818f2346cc8dd. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0902053 — a six-check JSON result.
    date published: 2026-07-02T03:55:08Z
  audio: Bruch: Violin Concerto No. 1 in G Minor, Op. 26: I. Prelude. Allegro moderato
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 130.203
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.28
    additional property: Energy
      type: PropertyValue
      value: 0.172
    additional property: Speechiness
      type: PropertyValue
      value: 0.045
    additional property: Acousticness
      type: PropertyValue
      value: 0.861
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.806
    additional property: Liveness
      type: PropertyValue
      value: 0.19
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.04
    additional property: Loudness (dB)
      type: PropertyValue
      value: -20.489
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Bruch: Violin Concerto No. 1 in G Minor, Op. 26: II. Adagio
  type: MusicRecording
  duration: PT7M44S
  duration ms: 464666
  explicit: false
  by artist: Max Bruch
  by artist: Sarah Chang
  by artist: Kurt Masur
  by artist: Dresdner Philharmonie
  in album: Bruch & Brahms: Violin Concertos
    type: MusicAlbum
    date published: 2009-09-21
  isrc code: GBAYC0902054
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-26T19:39:34+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xad8400c8de64bf1c6b4da9f6878d0e031ec60bc1f540d9a55bb902b90e374d31
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956304
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0902054
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  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 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad8400c8de64bf1c6b4da9f6878d0e031ec60bc1f540d9a55bb902b90e374d31. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0902054 — a six-check JSON result.
    date published: 2026-07-02T03:55:08Z
  audio: Bruch: Violin Concerto No. 1 in G Minor, Op. 26: II. Adagio
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 118.869
    additional property: Musical Key
      type: PropertyValue
      value: 3
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.208
    additional property: Energy
      type: PropertyValue
      value: 0.079
    additional property: Speechiness
      type: PropertyValue
      value: 0.046
    additional property: Acousticness
      type: PropertyValue
      value: 0.86
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.481
    additional property: Liveness
      type: PropertyValue
      value: 0.101
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.043
    additional property: Loudness (dB)
      type: PropertyValue
      value: -25.614
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Bruch: Violin Concerto No. 1 in G Minor, Op. 26: III. Finale. Allegro energico
  type: MusicRecording
  duration: PT7M16S
  duration ms: 436026
  explicit: false
  by artist: Max Bruch
  by artist: Sarah Chang
  by artist: Kurt Masur
  by artist: Dresdner Philharmonie
  in album: Bruch & Brahms: Violin Concertos
    type: MusicAlbum
    date published: 2009-09-21
  isrc code: GBAYC0902055
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-25T17:31:35+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xfba3104aeee5391e878048870ab185818a1053004960ce0205d1fc5123a90eab
  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: Bruch: Violin Concerto No. 1 in G Minor, Op. 26: III. Finale. Allegro energico
track: Brahms: Violin Concerto in D Major, Op. 77: I. Allegro non troppo
track: Brahms: Violin Concerto in D Major, Op. 77: II. Adagio
track: Brahms: Violin Concerto in D Major, Op. 77: III. Allegro giocoso, ma non troppo vivace

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 956304

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/956304

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0902055

OTSTimestamp
type: PropertyValue
value: 2026-07-02T03:55:08Z

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 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

OpenTimestamps Proof of Existence
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description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfba3104aeee5391e878048870ab185818a1053004960ce0205d1fc5123a90eab. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0902055 — a six-check JSON result.
date published: 2026-07-02T03:55:08Z

Bruch: Violin Concerto No. 1 in G Minor, Op. 26: III. Finale. Allegro energico
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Brahms: Violin Concerto in D Major, Op. 77: I. Allegro non troppo
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by artist: Dresdner Philharmonie
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T19:35:34Z
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Brahms: Violin Concerto in D Major, Op. 77: II. Adagio
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T01:34:28Z
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Brahms: Violin Concerto in D Major, Op. 77: III. Allegro giocoso, ma non troppo vivace
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T19:35:34Z
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Mendelssohn: Violin Concerto Op.64; Piano Trio Op.49; Violin Sonata in F major (1838)
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-06-13T12:53:06Z
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-06-13T12:53:06Z
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track: Violin Concerto In E Minor, Op. 64, MWV O14: III. Allegretto non troppo - Allegro molto vivace
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  audio: Violin Concerto In E Minor, Op. 64, MWV O14: III. Allegretto non troppo - Allegro molto vivace
track: Piano Trio No. 1 in D Minor, Op. 49, MWV Q29: I. Molto allegro agitato
track: Piano Trio No. 1 in D Minor, Op. 49, MWV Q29: II. Andante con moto tranquillo
track: Piano Trio No. 1 in D Minor, Op. 49, MWV Q29: III. Scherzo (Leggiero e vivace)
track: Piano Trio No. 1 in D Minor, Op. 49, MWV Q29: IV. Finale (Allegro assai appassionato)
track: Violin Sonata in F Major, MWV Q26: I. Allegro vivace
track: Violin Sonata in F Major, MWV Q26: II. Adagio
track: Violin Sonata in F Major, MWV Q26: III. Assai vivace
track: Lieder ohne Worte, Op. 62: VI. Frühlingslied (Arr. by Fritz Kreisler for Violin and Piano)

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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 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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c493ab1a89cfa09a478b297e236c26c72aaa2d7b6ce5bce0b7dd25093510f9d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960801973 — a six-check JSON result.
date published: 2026-07-02T03:30:09Z

Violin Concerto In E Minor, Op. 64, MWV O14: III. Allegretto non troppo - Allegro molto vivace
type: AudioObject
additional property: Tempo (BPM)
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  value: 105.388
additional property: Musical Key
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additional property: Mode (Major/Minor)
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  value: 1
additional property: Time Signature
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  value: 5
additional property: Danceability
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  value: 0.329
additional property: Energy
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  value: 0.158
additional property: Speechiness
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  value: 0.048
additional property: Acousticness
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  value: 0.923
additional property: Instrumentalness
  type: PropertyValue
  value: 0.153
additional property: Liveness
  type: PropertyValue
  value: 0.17
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.371
additional property: Loudness (dB)
  type: PropertyValue
  value: -25.131
additional property: Key Name
  type: PropertyValue
  value: E
additional property: Mode Name
  type: PropertyValue
  value: Major

Piano Trio No. 1 in D Minor, Op. 49, MWV Q29: I. Molto allegro agitato
type: MusicRecording
duration: PT9M1S
duration ms: 541160
explicit: false
by artist: Felix Mendelssohn
by artist: Anne-Sophie Mutter
by artist: Lynn Harrell
by artist: André Previn
in album: Mendelssohn: Violin Concerto Op.64; Piano Trio Op.49; Violin Sonata in F major (1838)
  type: MusicAlbum
  date published: 2008-01-01
genre: classical
genre: early-romantic-era
genre: german-romanticism
genre: classical-piano
genre: choral
genre: chamber-music
isrc code: DEN960801981
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T18:42:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9319d53a0f74b1a7820db14602ffb7bdb32f2c1e8ad2249379edb39f8a6492c0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960801981
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9319d53a0f74b1a7820db14602ffb7bdb32f2c1e8ad2249379edb39f8a6492c0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960801981 — a six-check JSON result.
  date published: 2026-06-13T13:32:09Z
audio: Piano Trio No. 1 in D Minor, Op. 49, MWV Q29: I. Molto allegro agitato
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 93.82
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
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    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.227
  additional property: Energy
    type: PropertyValue
    value: 0.169
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.971
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.578
  additional property: Liveness
    type: PropertyValue
    value: 0.08
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.215
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.74
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Piano Trio No. 1 in D Minor, Op. 49, MWV Q29: II. Andante con moto tranquillo
type: MusicRecording
duration: PT6M52S
duration ms: 412093
explicit: false
by artist: Felix Mendelssohn
by artist: Anne-Sophie Mutter
by artist: Lynn Harrell
by artist: André Previn
in album: Mendelssohn: Violin Concerto Op.64; Piano Trio Op.49; Violin Sonata in F major (1838)
  type: MusicAlbum
  date published: 2008-01-01
genre: classical
genre: early-romantic-era
genre: german-romanticism
genre: classical-piano
genre: choral
genre: chamber-music
isrc code: DEN960801982
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T09:28:08+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x994fa34504bef1f4cc49828fa83650ea917a96beb586648f318717e6dd8d5c6c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960801982
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x994fa34504bef1f4cc49828fa83650ea917a96beb586648f318717e6dd8d5c6c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960801982 — a six-check JSON result.
  date published: 2026-07-02T03:55:08Z
audio: Piano Trio No. 1 in D Minor, Op. 49, MWV Q29: II. Andante con moto tranquillo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 120.908
  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: 0.243
  additional property: Energy
    type: PropertyValue
    value: 0.056
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.988
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.71
  additional property: Liveness
    type: PropertyValue
    value: 0.115
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.052
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.852
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Piano Trio No. 1 in D Minor, Op. 49, MWV Q29: III. Scherzo (Leggiero e vivace)
type: MusicRecording
duration: PT3M38S
duration ms: 218453
explicit: false
by artist: Felix Mendelssohn
by artist: Anne-Sophie Mutter
by artist: Lynn Harrell
by artist: André Previn
in album: Mendelssohn: Violin Concerto Op.64; Piano Trio Op.49; Violin Sonata in F major (1838)
  type: MusicAlbum
  date published: 2008-01-01
genre: classical
genre: early-romantic-era
genre: german-romanticism
genre: classical-piano
genre: choral
genre: chamber-music
isrc code: DEN960801983
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T23:24:13+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x14d98db913a790c28bd85f52f034b52dbd2cca3541967d46085088601599be0e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960801983
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d98db913a790c28bd85f52f034b52dbd2cca3541967d46085088601599be0e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960801983 — a six-check JSON result.
  date published: 2026-07-02T03:55:08Z
audio: Piano Trio No. 1 in D Minor, Op. 49, MWV Q29: III. Scherzo (Leggiero e vivace)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 157.862
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.463
  additional property: Energy
    type: PropertyValue
    value: 0.163
  additional property: Speechiness
    type: PropertyValue
    value: 0.05
  additional property: Acousticness
    type: PropertyValue
    value: 0.986
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.776
  additional property: Liveness
    type: PropertyValue
    value: 0.126
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.738
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.07
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Piano Trio No. 1 in D Minor, Op. 49, MWV Q29: IV. Finale (Allegro assai appassionato)
type: MusicRecording
duration: PT8M10S
duration ms: 490386
explicit: false
by artist: Felix Mendelssohn
by artist: Anne-Sophie Mutter
by artist: Lynn Harrell
by artist: André Previn
in album: Mendelssohn: Violin Concerto Op.64; Piano Trio Op.49; Violin Sonata in F major (1838)
  type: MusicAlbum
  date published: 2008-01-01
genre: classical
genre: early-romantic-era
genre: german-romanticism
genre: classical-piano
genre: choral
genre: chamber-music
isrc code: DEN960801984
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T10:07:18+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x22722d41eb8de5953bb102e59bd2ec5d1a26d8c838df0993e1e91fb32f99e590
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960095
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960095
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960801984
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T11:07:37Z
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22722d41eb8de5953bb102e59bd2ec5d1a26d8c838df0993e1e91fb32f99e590. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/DEN960801984 — a six-check JSON result.
  date published: 2026-07-29T11:07:37Z
audio: Piano Trio No. 1 in D Minor, Op. 49, MWV Q29: IV. Finale (Allegro assai appassionato)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 166.856
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.313
  additional property: Energy
    type: PropertyValue
    value: 0.185
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.976
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.744
  additional property: Liveness
    type: PropertyValue
    value: 0.086
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.357
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.387
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Violin Sonata in F Major, MWV Q26: I. Allegro vivace
type: MusicRecording
duration: PT11M25S
duration ms: 685333
explicit: false
by artist: Felix Mendelssohn
by artist: Anne-Sophie Mutter
by artist: André Previn
in album: Mendelssohn: Violin Concerto Op.64; Piano Trio Op.49; Violin Sonata in F major (1838)
  type: MusicAlbum
  date published: 2008-01-01
genre: classical
genre: early-romantic-era
genre: german-romanticism
genre: classical-piano
genre: choral
genre: chamber-music
isrc code: DEN960801991
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-22T06:23:46+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0c4605686fcd62c33d92867faa43f4699ed384f5deb57bd28ac755adfadfe3bf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 959109
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/959109
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960801991
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-22T07:21:40Z
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c4605686fcd62c33d92867faa43f4699ed384f5deb57bd28ac755adfadfe3bf. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T07:21:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960801991 — a six-check JSON result.
  date published: 2026-07-22T07:21:40Z
audio: Violin Sonata in F Major, MWV Q26: I. Allegro vivace
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 74.893
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.32
  additional property: Energy
    type: PropertyValue
    value: 0.129
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.981
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.458
  additional property: Liveness
    type: PropertyValue
    value: 0.113
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.213
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.71
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Violin Sonata in F Major, MWV Q26: II. Adagio
type: MusicRecording
duration: PT7M13S
duration ms: 433866
explicit: false
by artist: Felix Mendelssohn
by artist: Anne-Sophie Mutter
by artist: André Previn
in album: Mendelssohn: Violin Concerto Op.64; Piano Trio Op.49; Violin Sonata in F major (1838)
  type: MusicAlbum
  date published: 2008-01-01
genre: classical
genre: early-romantic-era
genre: german-romanticism
genre: classical-piano
genre: choral
genre: chamber-music
isrc code: DEN960801992
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T23:25:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8a2afdc6068d5cd7dcb72afca31fec2ecfdd40aa4837705c7d0ba9bffaa38693
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960801992
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
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  date published: 2026-07-02T03:55:08Z
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Violin Sonata in F Major, MWV Q26: III. Assai vivace
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Lieder ohne Worte, Op. 62: VI. Frühlingslied (Arr. by Fritz Kreisler for Violin and Piano)
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Tschaikovsky & Grieg: Klavierkonzerte
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    date published: 2026-07-08T03:20:19Z
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Brahms: Ein deutsches Requiem, Op. 45
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Britten: War Requiem, Op. 66
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"A Midsummer Musical Journey" - From Mozart & Mendelssohn to Ravel & Tchaikovsky
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Morning Mood
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Tchaikovsky: Symphony No. 1, Op. 13 "Winter Daydreams": III. Scherzo. Allegro scherzando giocoso
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21 Hungarian Dances, WoO 1 - Orchestral Version: No. 5 in G Minor
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Peer Gynt, Op. 23 - Concert version by Kurt Masur & Friedhelm Eberle: Prelude: Morning Mood
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Peer Gynt, Op. 23 - Concert version by Kurt Masur & Friedhelm Eberle: "In the Hall of the Mountain King"
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subject of: OpenTimestamps Proof of Existence
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Bruch: Violin Concerto No. 1 in G Minor, Op. 26: I. Prelude. Allegro moderato
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T15:38:18Z
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Violin Concerto in E Major, BWV 1042: I. Allegro
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subject of: OpenTimestamps Proof of Existence
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Piano Concerto No. 21 in C Major, K. 467: II Andante
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subject of: OpenTimestamps Proof of Existence
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Violin Concerto in E Major, BWV 1042: III. Allegro assai
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subject of: OpenTimestamps Proof of Existence
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Violin Concerto in A Minor, BWV 1041: I. —
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T23:42:34Z
audio: Violin Concerto in A Minor, BWV 1041: I. —
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Violin Concerto in D Minor, BWV 1052: I. —
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duration: PT7M26S
duration ms: 446000
explicit: false
by artist: Johann Sebastian Bach
by artist: Amsterdam Bach Soloists
by artist: Henk Rubingh
by artist: Gewandhausorchester
by artist: Kurt Masur
in album: J.S. Bach: Complete Concertos
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  date published: 2016-05-06
popularity: 5
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: NLY331603747
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additional property: OTSVerificationAPI
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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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4622b0eb624c5b06c7fcc12103cb7cfc40d26cf1fd6ad82c4d80e374afbbb8c. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/NLY331603747 — a six-check JSON result.
  date published: 2026-07-29T21:09:47Z
audio: Violin Concerto in D Minor, BWV 1052: I. —
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Peer Gynt, Op. 23 - Concert version by Kurt Masur & Friedhelm Eberle: Prelude: Morning Mood
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duration: PT4M21S
duration ms: 261493
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by artist: Edvard Grieg
by artist: Gewandhausorchester
by artist: Kurt Masur
in album: Relaxing Adagios
  type: MusicAlbum
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popularity: 5
genre: classical
genre: late-romantic-era
genre: norwegian-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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  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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0788f05c8d5c96b4e6249a78561fca5e4e46dd870a5f907b6c6306e0896d7606. 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/NLA508703017 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Peer Gynt, Op. 23 - Concert version by Kurt Masur & Friedhelm Eberle: Prelude: Morning Mood
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