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album: The Complete HMV Recordings 1926-1955
album: Sinkovsky Plays and Sings Vivaldi
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album: A Winter Journey
album: Klassische Musik für den Sommer - Über das Meer
album: Music by the Sea
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album: Grieg: Morning Mood - Albinoni: Adagio - Gluck: Dance of the Blessed Spirits - Bach: Jesu, Joy of Man's Desiring & Badinerie - Charpentier: Te Deum - Bizet: Les toréadors & Other Classical Hi
album: Concert of the Birds
album: Pachelbel: Canon - Albinoni: Adagio - Bach: Air on G String - Mozart: Eine kleine Nachtmusik - Fauré: Pavane - Handel: Hallelujah from the Messiah & Other Classical Hits
album: Dolce Duello
album: Vivaldi: The Four Seasons
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The Four Seasons, Violin Concerto No. 4 in F Minor, RV 297 "Winter": II. Largo
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Vivaldi: Violin Concerto in A Minor, RV 356: I. Allegro
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Concerto for Violin and Strings in F Major, Op. 8, No. 3, RV 293 "L'autunno": II. Adagio molto (Ubriachi dormienti) - Live
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Concerto for Violin and Strings in F Minor, Op. 8, No. 4, RV 297 "L'inverno": III. Allegro - Live
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Sonata for Violin and Continuo in G Minor, B. g5 - "Il trillo del diavolo": I. Larghetto affettuoso - Live
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Sonata for Violin and Continuo in G Minor, B. g5 - "Il trillo del diavolo": III. Andante - Allegro - Live
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Violin Concerto No. 1 in A Minor, BWV 1041: I. (Allegro moderato)
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Violin Concerto No. 1 in A Minor, BWV 1041: II. Andante
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Violin Concerto No. 2 in E Major, BWV 1042: I. Allegro
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Fauré: 3 Mélodies, Op. 85: No. 1, Dans la forêt de septembre
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Strauss II, J: Geschichten aus dem Wienerwald, Op. 325
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Wagner: Siegfried, Act 2: Forest Murmurs
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Rossini: Guillaume Tell, Act 2: "Sombre forêt" (Mathilde)
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Debussy: Pelléas et Mélisande, CD 93, L. 88, Act 1: Introduction
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Gluck: Orphée et Eurydice, Wq. 41, Act 1: Chœur. "Ah ! Dans ce bois tranquille et sombre" (Nymphes, Bergers, Orphée)
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Villa-Lobos: Floresta do Amazonas, W551: Melodia Sentimental (Arr. Barbosa-Lima for Guitar)
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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
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe5466ac493845665120174ac679f3b5b7e89abfd956faf2d5b5f340b8cef799. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8801674.
  date published: 2026-07-08T08:56:20Z
audio: Villa-Lobos: Floresta do Amazonas, W551: Melodia Sentimental (Arr. Barbosa-Lima for Guitar)
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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: Valence (Positivity)
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  additional property: Loudness (dB)
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Smetana: Má Vlast: IV. From Bohemian Woods and Fields
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duration: PT12M35S
duration ms: 755453
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by artist: Bedřich Smetana
by artist: Royal Liverpool Philharmonic Orchestra
by artist: Libor Pešek
in album: Forest Murmurs
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  date published: 2023-06-15
popularity: 1
genre: classical
genre: late-romantic-era
genre: czech-classical
genre: early-modern-classical
isrc code: GBAYC8901640
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/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8901640
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c2307c045198d09d820566b20a544cf9a49071b53b5a98bfadae4b5e0880c1. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8901640.
  date published: 2026-07-08T08:56:20Z
audio: Smetana: Má Vlast: IV. From Bohemian Woods and Fields
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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  additional property: Energy
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  additional property: Acousticness
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The Complete HMV Recordings 1926-1955
type: MusicAlbum
date published: 2023-08-30
track: Bach, JS: Cello Suite No. 1 in G Major, BWV 1007: I. Prelude
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  explicit: false
  by artist: Johann Sebastian Bach
  by artist: Pablo Casals
  in album: The Complete HMV Recordings 1926-1955
    type: MusicAlbum
    date published: 2023-08-30
  popularity: 12
  genre: classical
  genre: classical-piano
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  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957819
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1102616
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e0744deb9a07aabf8967574117c31b386e6cd27b2c95b63fe1494be3ca0a62. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1102616.
    date published: 2026-07-13T07:53:33Z
  audio: Bach, JS: Cello Suite No. 1 in G Major, BWV 1007: I. Prelude
    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: Valence (Positivity)
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track: Bach, JS: Cello Suite No. 1 in G Major, BWV 1007: II. Allemande
  type: MusicRecording
  duration: PT3M41S
  duration ms: 221827
  explicit: false
  by artist: Johann Sebastian Bach
  by artist: Pablo Casals
  in album: The Complete HMV Recordings 1926-1955
    type: MusicAlbum
    date published: 2023-08-30
  popularity: 4
  genre: classical
  genre: classical-piano
  isrc code: GBAYC1102617
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T06:38:48+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
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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/GBAYC1102617
  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff5e8c981f6b0d13baa9fb7fd860cf14b8767cdef7e4ca517cf664d925650c6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1102617.
    date published: 2026-07-08T03:20:19Z
  audio: Bach, JS: Cello Suite No. 1 in G Major, BWV 1007: II. Allemande
    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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    additional property: Key Name
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    additional property: Mode Name
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track: Bach, JS: Cello Suite No. 1 in G Major, BWV 1007: IV. Sarabande
  type: MusicRecording
  duration: PT2M22S
  duration ms: 142807
  explicit: false
  by artist: Johann Sebastian Bach
  by artist: Pablo Casals
  in album: The Complete HMV Recordings 1926-1955
    type: MusicAlbum
    date published: 2023-08-30
  popularity: 4
  genre: classical
  genre: classical-piano
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  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: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Bach, JS: Cello Suite No. 1 in G Major, BWV 1007: IV. Sarabande
track: Bach, JS: Cello Suite No. 2 in D Minor, BWV 1008: I. Prelude
track: Bach, JS: Cello Suite No. 2 in D Minor, BWV 1008: II. Allemande
track: Bach, JS: Cello Suite No. 2 in D Minor, BWV 1008: III. Courante
track: Bach, JS: Cello Suite No. 2 in D Minor, BWV 1008: VI. Gigue
track: Bach, JS: Cello Suite No. 3 in C Major, BWV 1009: I. Prelude
track: Bach, JS: Cello Suite No. 3 in C Major, BWV 1009: V. Bourrées I & II

CopyrightChainExplorerURL
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value: https://explorer.copyrightchains.com/tx/0xefc5f58b76d07dd8ed48dad3a60ae8fd1ecdf6b4574de47ce64b38f1ac118c84

OTSHash
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OTSBitcoinBlock
type: PropertyValue
value: 957145

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957145

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1102619

OTSTimestamp
type: PropertyValue
value: 2026-07-08T08:56:20Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefc5f58b76d07dd8ed48dad3a60ae8fd1ecdf6b4574de47ce64b38f1ac118c84. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1102619.
date published: 2026-07-08T08:56:20Z

Bach, JS: Cello Suite No. 1 in G Major, BWV 1007: IV. Sarabande
type: AudioObject
additional property: Tempo (BPM)
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additional property: Musical Key
  type: PropertyValue
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additional property: Mode (Major/Minor)
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additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.144
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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Bach, JS: Cello Suite No. 2 in D Minor, BWV 1008: I. Prelude
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duration: PT3M42S
duration ms: 222664
explicit: false
by artist: Johann Sebastian Bach
by artist: Pablo Casals
in album: The Complete HMV Recordings 1926-1955
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  date published: 2023-08-30
popularity: 3
genre: classical
genre: classical-piano
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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/GBAYC1102623
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7466a400396cb79320f830947c4c0274c50e94700cb59c0363bb6c263643d291. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1102623.
  date published: 2026-07-08T03:22:41Z
audio: Bach, JS: Cello Suite No. 2 in D Minor, BWV 1008: I. Prelude
  type: AudioObject
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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: Valence (Positivity)
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Bach, JS: Cello Suite No. 2 in D Minor, BWV 1008: II. Allemande
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duration: PT3M55S
duration ms: 235481
explicit: false
by artist: Johann Sebastian Bach
by artist: Pablo Casals
in album: The Complete HMV Recordings 1926-1955
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  date published: 2023-08-30
popularity: 3
genre: classical
genre: classical-piano
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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
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d2b91c7ada742424f3f5e01439104db21c2545654968afab7307337eedafb90. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1102624.
  date published: 2026-07-08T03:53:27Z
audio: Bach, JS: Cello Suite No. 2 in D Minor, BWV 1008: II. Allemande
  type: AudioObject
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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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Sinkovsky Plays and Sings Vivaldi
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track: Sonata in E-Flat Major “Al Santo Sepolcro” RV 130: I. Largo molto
track: Concerto in G Minor, RV 157: II. Largo
track: Concerto in B-Flat Major, RV 163: III. Allegro, Danza Pastorale

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value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cfe3bf04bc8b440b23283920960f895d694ef5d8bb31616c7279ff076956e57. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB151600430.
date published: 2026-07-13T07:53:33Z

Violin Concerto No. 3 in F Major, RV 293 "L’Autunno" (Autumn): I. Allegro
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Sonata in E-Flat Major “Al Santo Sepolcro” RV 130: I. Largo molto
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by artist: Jan Willem de Vriend
by artist: Combattimento Consort Amsterdam
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Sonata in E-Flat Major “Al Santo Sepolcro” RV 130: I. Largo molto
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Concerto in G Minor, RV 157: II. Largo
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by artist: Jaap Van Zweden
by artist: Jan Willem de Vriend
by artist: Combattimento Consort Amsterdam
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Concerto in G Minor, RV 157: II. Largo
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Concerto in B-Flat Major, RV 163: III. Allegro, Danza Pastorale
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by artist: Jaap Van Zweden
by artist: Jan Willem de Vriend
by artist: Combattimento Consort Amsterdam
in album: The Four Seasons
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popularity: 4
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Concerto in B-Flat Major, RV 163: III. Allegro, Danza Pastorale
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A Winter Journey
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date published: 2023-12-28
track: Vivaldi: The Four Seasons, Violin Concerto in F Minor, Op. 8 No. 4, RV 297 "Winter": I. Allegro non molto
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-07T20:41:57Z
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track: Mozart: 3 German Dances, K. 605: No. 3 in C Major "Die Schlittenfahrt"
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:53:27Z
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track: Debussy: Children's Corner, CD 119, L. 113: No. 4, The Snow Is Dancing
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track: Purcell: King Arthur, Z. 628, Act 3: Prelude While Cold Genius Rises - Song. "What Power Art Thou"
track: Glazunov: The Seasons, Op. 67, Pt. 1 "Winter": No. 3, Frost Variation
track: Schubert: Winterreise, Op. 89, D. 911: No. 1, Gute Nacht
track: Chopin: 12 Études, Op. 25: No. 11 in A Minor "Winter Wind"
track: Mendelssohn: 6 Gesänge, Op. 19a: No. 3, Winterlied, MWV K72
track: Einaudi: Snow Prelude No. 3
track: Aborn: T'is Winter Now
track: Haydn: The Seasons, Hob. XXI:3, Winter: No. 39, Lied mit Chor. "Ein Mädchen, das auf Ehre hielt" (Hanne, Chorus)
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track: Wolf: 6 Lieder für eine Frauenstimme: No. 5, Wiegenlied im Winter
track: Prokofiev: Cinderella, Op. 87, Act 1: No. 16, Winter Fairy
track: Delius: 3 Small Tone Poems: No. 2, Sleigh Ride
track: Beethoven: Symphony No. 7 in A Major, Op. 92: II. Allegretto
track: Shor: Four Seasons of Manhattan: III. Winter
track: Ravel: Piano Trio in A Minor, M. 67: I. Modéré
track: Hahn: Le rossignol éperdu: No. 52, Hivernale
track: Piazzolla: Estaciones porteñas: IV. Invierno porteño (Arr. Assad for Guitar)
track: Rimsky-Korsakov: The Snow Maiden, Act 3: Dance of the Tumblers
track: Elgar: 2 Part Songs, Op. 26: No. 1, The Snow
track: Violin Concerto No. 2 "The American Four Seasons": Movement IV
track: Liszt: 12 Études d'exécution transcendante, S. 139: No. 12, Chasse-neige. Andante con moto
track: Bach, JS: Weihnachtsoratorium, BWV 248, Pt. 2: No. 10, Sinfonia
track: Waldteufel: Les patineurs, Op. 183
track: Charpentier: Dispute de bergers, H. 484 "Il faut rire et chanter": II. Brouillards, glaçons, neige, frimas

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OpenTimestamps Proof of Existence
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Purcell: King Arthur, Z. 628, Act 3: Prelude While Cold Genius Rises - Song. "What Power Art Thou"
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Glazunov: The Seasons, Op. 67, Pt. 1 "Winter": No. 3, Frost Variation
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Schubert: Winterreise, Op. 89, D. 911: No. 1, Gute Nacht
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Chopin: 12 Études, Op. 25: No. 11 in A Minor "Winter Wind"
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Einaudi: Snow Prelude No. 3
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Haydn: The Seasons, Hob. XXI:3, Winter: No. 39, Lied mit Chor. "Ein Mädchen, das auf Ehre hielt" (Hanne, Chorus)
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Jarre: The Engadiner Suite for Piano Trio: III. Winter
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Wolf: 6 Lieder für eine Frauenstimme: No. 5, Wiegenlied im Winter
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Prokofiev: Cinderella, Op. 87, Act 1: No. 16, Winter Fairy
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Delius: 3 Small Tone Poems: No. 2, Sleigh Ride
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Shor: Four Seasons of Manhattan: III. Winter
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Ravel: Piano Trio in A Minor, M. 67: I. Modéré
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by artist: Renaud Capuçon
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Ravel: Piano Trio in A Minor, M. 67: I. Modéré
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Hahn: Le rossignol éperdu: No. 52, Hivernale
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Hahn: Le rossignol éperdu: No. 52, Hivernale
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Piazzolla: Estaciones porteñas: IV. Invierno porteño (Arr. Assad for Guitar)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Piazzolla: Estaciones porteñas: IV. Invierno porteño (Arr. Assad for Guitar)
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Rimsky-Korsakov: The Snow Maiden, Act 3: Dance of the Tumblers
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Rimsky-Korsakov: The Snow Maiden, Act 3: Dance of the Tumblers
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Elgar: 2 Part Songs, Op. 26: No. 1, The Snow
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Elgar: 2 Part Songs, Op. 26: No. 1, The Snow
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Violin Concerto No. 2 "The American Four Seasons": Movement IV
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Liszt: 12 Études d'exécution transcendante, S. 139: No. 12, Chasse-neige. Andante con moto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
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Bach, JS: Weihnachtsoratorium, BWV 248, Pt. 2: No. 10, Sinfonia
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Bach, JS: Weihnachtsoratorium, BWV 248, Pt. 2: No. 10, Sinfonia
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Waldteufel: Les patineurs, Op. 183
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
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Charpentier: Dispute de bergers, H. 484 "Il faut rire et chanter": II. Brouillards, glaçons, neige, frimas
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  date published: 2026-07-08T08:56:20Z
audio: Charpentier: Dispute de bergers, H. 484 "Il faut rire et chanter": II. Brouillards, glaçons, neige, frimas
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Klassische Musik für den Sommer - Über das Meer
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track: Debussy: Petite suite, CD 71, L. 65: I. En bateau (Orch. Büsser)
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    date published: 2026-07-08T03:20:19Z
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track: Satie: Sports et divertissements: No. 9, Le bain de mer
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    date published: 2026-07-02T03:30:09Z
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track: Britten: Four Sea Interludes from Peter Grimes, Op. 33a: No. 3, Moonlight
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track: Chopin: 12 Études, Op. 25: No. 12 in C Minor
track: Vivaldi: Flute Concerto in F Major, Op. 10 No. 1, RV 433 "La tempesta di mare": I. Allegro
track: Debussy: La Mer, CD 111, L. 109: II. Jeux de vagues
track: Bridge: The Sea: I. Seascape. Allegro ben moderato

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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:53:27Z

Britten: Four Sea Interludes from Peter Grimes, Op. 33a: No. 3, Moonlight
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Bridge: The Sea: I. Seascape. Allegro ben moderato
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track: Ives: Set No. 3 for Chamber Orchestra: I. At Sea. Adagio sostenuto
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Britten: Four Sea Interludes from Peter Grimes, Op. 33a: No. 3, Moonlight
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Chopin: 12 Études, Op. 25: No. 12 in C Minor
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Vivaldi: Flute Concerto in F Major, Op. 10 No. 1, RV 433 "La tempesta di mare": I. Allegro
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Debussy: La Mer, CD 111, L. 109: II. Jeux de vagues
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Bridge: The Sea: I. Seascape. Allegro ben moderato
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Ives: Set No. 3 for Chamber Orchestra: I. At Sea. Adagio sostenuto
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Sibelius: Pelléas et Mélisande, Op. 46: III. At the Seashore
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Mendelssohn: The Hebrides, Op. 26, MWV P7 "Fingal's Cave"
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
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by artist: BBC Symphony Orchestra
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:39:04Z
audio: Ravel: Miroirs, M. 43: III. Une barque sur l'océan
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:22:41Z
  audio: Concerto in a minor RV 463: Allegro
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    date published: 2026-07-08T03:20:19Z
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OTSTimestamp
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OTSVerifyInstructions
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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:53:27Z

Concerto in a minor RV 461: Larghetto
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subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:22:41Z
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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:22:41Z

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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Mozart: Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": I. Allegro
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Boccherini: String Quintet in E Major, Op. 11 No. 5, G. 275: III. Minuetto - Trio (Arr. Woodhouse for String Orchestra)
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by artist: Sir Neville Marriner
by artist: Academy of St. Martin in the Fields
in album: Grieg: Morning Mood - Albinoni: Adagio - Gluck: Dance of the Blessed Spirits - Bach: Jesu, Joy of Man's Desiring & Badinerie - Charpentier: Te Deum - Bizet: Les toréadors & Other Classical Hi
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popularity: 3
genre: classical
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Boccherini: String Quintet in E Major, Op. 11 No. 5, G. 275: III. Minuetto - Trio (Arr. Woodhouse for String Orchestra)
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Pachelbel: Canon and Gigue in D Major: Canon
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duration: PT5M0S
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by artist: Johann Pachelbel
by artist: Sir Neville Marriner
by artist: Academy of St. Martin in the Fields
in album: Grieg: Morning Mood - Albinoni: Adagio - Gluck: Dance of the Blessed Spirits - Bach: Jesu, Joy of Man's Desiring & Badinerie - Charpentier: Te Deum - Bizet: Les toréadors & Other Classical Hi
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Pachelbel: Canon and Gigue in D Major: Canon
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Mozart: Don Giovanni, K. 527: Overture
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duration: PT6M30S
duration ms: 390200
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Sir Neville Marriner
by artist: Academy of St. Martin in the Fields
in album: Grieg: Morning Mood - Albinoni: Adagio - Gluck: Dance of the Blessed Spirits - Bach: Jesu, Joy of Man's Desiring & Badinerie - Charpentier: Te Deum - Bizet: Les toréadors & Other Classical Hi
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popularity: 2
genre: classical
genre: classical-era
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Mozart: Don Giovanni, K. 527: Overture
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Godard: Jocelyn, Op. 100, Act 1: Berceuse. "Oh ! Ne t'éveille pas encore" (Instrumental Version)
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by artist: Radio-Sinfonieorchester Stuttgart des SWR
by artist: Sir Neville Marriner
by artist: Radio-Sinfonieorchester Stuttgart
in album: Grieg: Morning Mood - Albinoni: Adagio - Gluck: Dance of the Blessed Spirits - Bach: Jesu, Joy of Man's Desiring & Badinerie - Charpentier: Te Deum - Bizet: Les toréadors & Other Classical Hi
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popularity: 2
genre: late-romantic-era
genre: french-romanticism
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Godard: Jocelyn, Op. 100, Act 1: Berceuse. "Oh ! Ne t'éveille pas encore" (Instrumental Version)
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Offenbach: Les contes d'Hoffmann, Act 4: Barcarolle. "Belle nuit, ô nuit d'amour" (Instrumental Version)
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by artist: Radio-Sinfonieorchester Stuttgart des SWR
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by artist: Radio-Sinfonieorchester Stuttgart
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  date published: 2024-01-04
popularity: 2
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Offenbach: Les contes d'Hoffmann, Act 4: Barcarolle. "Belle nuit, ô nuit d'amour" (Instrumental Version)
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Vivaldi: Gloria in D Major, RV 589: I. Gloria in excelsis Deo
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by artist: Academy of St. Martin in the Fields
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popularity: 1
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Vivaldi: Gloria in D Major, RV 589: I. Gloria in excelsis Deo
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Bach, JS / Orch. Marriner: Was mir behagt, ist nur die muntre Jagd, BWV 208 "Jagdkantate": IX. Aria. "Schafe können sicher weiden"
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Massenet: Thaïs, Act 2: Méditation
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Concert of the Birds
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track: Vivaldi: Flute Concerto in D Major, Op. 10 No. 3, RV 428 "Il gardellino": I. Allegro
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track: Saint-Saëns: Le carnaval des animaux: XIII. Le cygne
track: Dutilleux: Blackbird
track: Rameau: Second livre de pièces de clavecin, Suite en mi: V. Le rappel des oiseaux
track: Sibelius: Lemminkäinen Suite, Op. 22 "Legends of the Kalevala": No. 2, The Swan of Tuonela
track: Stravinsky: Le Chant du rossignol: III. Chant du rossignol
track: Sauguet: Tableaux de Paris: III. Quai aux fleurs, marché aux oiseaux
track: Mozart: Oiseaux, si tous les ans, K. 307
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track: Rossini : La gazza ladra: Overture

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date published: 2026-07-08T03:20:19Z

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Sibelius: Lemminkäinen Suite, Op. 22 "Legends of the Kalevala": No. 2, The Swan of Tuonela
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Sauguet: Tableaux de Paris: III. Quai aux fleurs, marché aux oiseaux
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Rossini : La gazza ladra: Overture
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Pachelbel: Canon - Albinoni: Adagio - Bach: Air on G String - Mozart: Eine kleine Nachtmusik - Fauré: Pavane - Handel: Hallelujah from the Messiah & Other Classical Hits
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track: Handel: Solomon, HWV 67, Act 3: Sinfonia "The Arrival of the Queen of Sheba"
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track: Mozart: Symphony No. 41 in C Major, K. 551 "Jupiter": I. Allegro vivace
track: Mozart: Horn Concerto No. 2 in E-Flat Major, K. 417: II. Andante
track: Mozart: Horn Concerto No. 4 in E-Flat Major, K. 495: III. Rondo. Allegro vivace
track: Grieg: Holberg Suite, Op. 40: I. Praeludium
track: Mozart: 3 German Dances, K. 605: No. 3 in C Major "Die Schlittenfahrt"
track: Bach, JS: Piano Concerto No. 5 in F Minor, BWV 1056: II. Largo
track: Mozart: Don Giovanni, K. 527: Overture
track: Grieg: Piano Concerto in A Minor, Op. 16: II. Adagio

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Bach, JS: Brandenburg Concerto No. 3 in G Major, BWV 1048: I. —
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Vivaldi: Gloria in D Major, RV 589: I. Gloria in excelsis Deo
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Mozart: Symphony No. 40 in G Minor, K. 550: I. Molto allegro
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Boccherini: String Quintet in E Major, Op. 11 No. 5, G. 275: III. Minuetto - Trio (Arr. Woodhouse for String Orchestra)
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Bach, JS / Orch. Marriner: Was mir behagt, ist nur die muntre Jagd, BWV 208 "Jagdkantate": IX. Aria. "Schafe können sicher weiden"
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Vivaldi: Concerto for Two Trumpets in C Major, RV 537: II. Largo
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Grieg: Peer Gynt, Op. 23, Act 4: No. 13, Prelude. Morning Mood
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Fauré: Pavane, Op. 50 (Instrumental Version)
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Tchaikovsky: String Quartet No. 1 in D Major, Op. 11: II. Andante cantabile (Arr. Marriner for String Orchestra)
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Rimsky-Korsakov: The Tale of Tsar Saltan, Act 3: The Flight of the Bumblebee
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Mozart: Le nozze di Figaro, K. 492: Overture
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in album: Pachelbel: Canon - Albinoni: Adagio - Bach: Air on G String - Mozart: Eine kleine Nachtmusik - Fauré: Pavane - Handel: Hallelujah from the Messiah & Other Classical Hits
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genre: classical-era
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Mozart: Le nozze di Figaro, K. 492: Overture
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Mozart: Die Entführung aus dem Serail, K. 384: Overture
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duration ms: 342746
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by artist: Wolfgang Amadeus Mozart
by artist: Sir Neville Marriner
by artist: Academy of St. Martin in the Fields
in album: Pachelbel: Canon - Albinoni: Adagio - Bach: Air on G String - Mozart: Eine kleine Nachtmusik - Fauré: Pavane - Handel: Hallelujah from the Messiah & Other Classical Hits
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popularity: 24
genre: classical
genre: classical-era
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Mozart: Die Entführung aus dem Serail, K. 384: Overture
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Mozart: Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": I. Allegro
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duration: PT5M53S
duration ms: 353613
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Sir Neville Marriner
by artist: Academy of St. Martin in the Fields
in album: Pachelbel: Canon - Albinoni: Adagio - Bach: Air on G String - Mozart: Eine kleine Nachtmusik - Fauré: Pavane - Handel: Hallelujah from the Messiah & Other Classical Hits
  type: MusicAlbum
  date published: 2023-11-09
popularity: 25
genre: classical
genre: classical-era
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additional property: CopyrightID
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Mozart: Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": I. Allegro
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Mozart: Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": II. Romance. Andante
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duration: PT5M44S
duration ms: 344640
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Sir Neville Marriner
by artist: Academy of St. Martin in the Fields
in album: Pachelbel: Canon - Albinoni: Adagio - Bach: Air on G String - Mozart: Eine kleine Nachtmusik - Fauré: Pavane - Handel: Hallelujah from the Messiah & Other Classical Hits
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  date published: 2023-11-09
popularity: 24
genre: classical
genre: classical-era
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Mozart: Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": II. Romance. Andante
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Mozart: Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": IV. Rondo. Allegro
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duration: PT3M4S
duration ms: 184546
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by artist: Wolfgang Amadeus Mozart
by artist: Sir Neville Marriner
by artist: Academy of St. Martin in the Fields
in album: Pachelbel: Canon - Albinoni: Adagio - Bach: Air on G String - Mozart: Eine kleine Nachtmusik - Fauré: Pavane - Handel: Hallelujah from the Messiah & Other Classical Hits
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popularity: 23
genre: classical
genre: classical-era
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Mozart: Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": IV. Rondo. Allegro
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Mozart: Symphony No. 41 in C Major, K. 551 "Jupiter": I. Allegro vivace
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duration: PT11M27S
duration ms: 687466
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by artist: Wolfgang Amadeus Mozart
by artist: Sir Neville Marriner
by artist: Academy of St. Martin in the Fields
in album: Pachelbel: Canon - Albinoni: Adagio - Bach: Air on G String - Mozart: Eine kleine Nachtmusik - Fauré: Pavane - Handel: Hallelujah from the Messiah & Other Classical Hits
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  date published: 2023-11-09
popularity: 23
genre: classical
genre: classical-era
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Mozart: Symphony No. 41 in C Major, K. 551 "Jupiter": I. Allegro vivace
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Mozart: Horn Concerto No. 2 in E-Flat Major, K. 417: II. Andante
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by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
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popularity: 21
genre: classical
genre: classical-era
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additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSVerificationAPI
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subject of: OpenTimestamps Proof of Existence
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Mozart: Horn Concerto No. 4 in E-Flat Major, K. 495: III. Rondo. Allegro vivace
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Grieg: Holberg Suite, Op. 40: I. Praeludium
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Mozart: 3 German Dances, K. 605: No. 3 in C Major "Die Schlittenfahrt"
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  date published: 2026-07-08T03:53:27Z
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Bach, JS: Piano Concerto No. 5 in F Minor, BWV 1056: II. Largo
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Mozart: Don Giovanni, K. 527: Overture
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Grieg: Piano Concerto in A Minor, Op. 16: II. Adagio
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Dolce Duello
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  additional property: OTSVerifyInstructions
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T11:38:34Z
  audio: Nitocri: “Fortuna e speranza”
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track: Il nascimento dell’Aurora: “Aure andate e baciate”
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  by artist: Cappella Gabetta
  by artist: Andrés Gabetta
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  popularity: 11
  genre: classical
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-02T11:38:34Z
  audio: Il nascimento dell’Aurora: “Aure andate e baciate”
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track: San Sigismondo, re di Borgogna: “Aure voi de’ miei sospiri”
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  by artist: Sol Gabetta
  by artist: Cappella Gabetta
  by artist: Andrés Gabetta
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    type: MusicAlbum
    date published: 2017-11-10
  popularity: 6
  genre: italian-baroque
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  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: San Sigismondo, re di Borgogna: “Aure voi de’ miei sospiri”
track: Tito Manlio, RV 738 / Act 1: "Di verde ulivo"
track: Ode for Saint Cecilia's Day, HWV76: "What Passion Cannot Music Raise and Quell"
track: Gli orti esperidi: “Giusto Amor tu che m’accendi”

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

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe38ed8fcc3122a6441d0caa16c2ec4bb4294c24d47ec2bbfc5a6a71c2b366c92. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF071700230.
date published: 2026-07-08T03:20:19Z

San Sigismondo, re di Borgogna: “Aure voi de’ miei sospiri”
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additional property: Tempo (BPM)
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additional property: Musical Key
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additional property: Mode (Major/Minor)
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additional property: Time Signature
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additional property: Liveness
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additional property: Valence (Positivity)
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additional property: Key Name
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additional property: Mode Name
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Tito Manlio, RV 738 / Act 1: "Di verde ulivo"
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duration: PT5M22S
duration ms: 322386
explicit: false
by artist: Antonio Vivaldi
by artist: Cecilia Bartoli
by artist: Sol Gabetta
by artist: Cappella Gabetta
by artist: Andrés Gabetta
in album: Dolce Duello
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popularity: 4
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf274ec59eeb6ab48619d469304438b3f3d48a88eaa08fabf3fc7de3673326bf9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF071700240.
  date published: 2026-07-08T03:22:41Z
audio: Tito Manlio, RV 738 / Act 1: "Di verde ulivo"
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Ode for Saint Cecilia's Day, HWV76: "What Passion Cannot Music Raise and Quell"
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duration: PT7M34S
duration ms: 454573
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by artist: George Frideric Handel
by artist: Cecilia Bartoli
by artist: Sol Gabetta
by artist: Cappella Gabetta
by artist: Andrés Gabetta
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  date published: 2017-11-10
popularity: 5
genre: classical
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x316d34a1fb8a2f4749bad6a0f347b20df2b230653c9daf9a678d0286e20902fd. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF071700250.
  date published: 2026-07-07T12:58:18Z
audio: Ode for Saint Cecilia's Day, HWV76: "What Passion Cannot Music Raise and Quell"
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  additional property: Valence (Positivity)
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Gli orti esperidi: “Giusto Amor tu che m’accendi”
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duration: PT5M29S
duration ms: 329746
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by artist: Cecilia Bartoli
by artist: Sol Gabetta
by artist: Cappella Gabetta
by artist: Andrés Gabetta
in album: Dolce Duello
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popularity: 11
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additional property: CopyrightID
additional property: CopyrightStatus
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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
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Gli orti esperidi: “Giusto Amor tu che m’accendi”
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Vivaldi: The Four Seasons
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date published: 2007-01-01

Vivaldi: The Four Seasons & Violin Concertos
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date published: 2015-08-28
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  by artist: Itzhak Perlman
  by artist: Israel Philharmonic Orchestra
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T05:09:12Z
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