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description: Douglas Boyd (born 1959, Glasgow, Scotland) is a British oboist and conductor. Biography Boyd studied oboe at the Royal Academy of Music, London, as a pupil of Janet Craxton. He later was a student w
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  track: Concerto in G Minor, RV 577 "Per l'Orchestra di Dresda": I. Allegro
  track: Concerto in G Minor, RV 577 "Per l'Orchestra di Dresda": III. Allegro
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  date published: 2026-07-08T03:20:19Z
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The Four Seasons, Violin Concerto in G Minor, Op. 8/2, RV 315 "Summer": III. Presto
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  date published: 2026-07-08T03:20:19Z
audio: The Four Seasons, Violin Concerto in G Minor, Op. 8/2, RV 315 "Summer": III. Presto
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The Four Seasons, Violin Concerto in F Major, Op. 8/3, RV 293 "Autumn": I. Allegro
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by artist: Viktoria Mullova
by artist: Chamber Orchestra of Europe
by artist: Claudio Abbado
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T02:19:15Z
audio: The Four Seasons, Violin Concerto in F Major, Op. 8/3, RV 293 "Autumn": I. Allegro
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The Four Seasons, Violin Concerto in F Major, Op. 8/3, RV 293 "Autumn": II. Adagio molto
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by artist: Chamber Orchestra of Europe
by artist: Claudio Abbado
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: The Four Seasons, Violin Concerto in F Major, Op. 8/3, RV 293 "Autumn": II. Adagio molto
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The Four Seasons, Violin Concerto in F Major, Op. 8/3, RV 293 "Autumn": III. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: The Four Seasons, Violin Concerto in F Major, Op. 8/3, RV 293 "Autumn": III. Allegro
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The Four Seasons, Violin Concerto in F Minor, Op. 8/4, RV 297 "Winter": I. Allegro non molto - Allegro
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genre: classical
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T14:44:50Z
audio: The Four Seasons, Violin Concerto in F Minor, Op. 8/4, RV 297 "Winter": I. Allegro non molto - Allegro
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The Four Seasons, Violin Concerto in F Minor, Op. 8/4, RV 297 "Winter": II. Largo
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T19:53:13Z
audio: The Four Seasons, Violin Concerto in F Minor, Op. 8/4, RV 297 "Winter": II. Largo
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The Four Seasons, Violin Concerto in F Minor, Op. 8/4, RV 297 "Winter": III. Allegro
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Mendelssohn: Symphony No. 2
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Jürg Dähler · Viola Concertos / Signatures of Life – LIVE!
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Violin Concertos Nos. 1 & 2
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Mendelssohn: Die erste Walpurgisnacht, Op. 60
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    date published: 2026-07-08T03:20:19Z
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  subject of: OpenTimestamps Proof of Existence
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track: Piano Concerto No. 2 in D Minor, Op. 40: I. Allegro appassionato
track: Piano Concerto in A Minor, MWV 0 2 (1822): I. Allegro

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date published: 2026-07-02T03:55:08Z

Piano Concerto No. 1 in G Minor, Op. 25: III. Presto - Molto allegro e vivace
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Piano Concerto No. 2 in D Minor, Op. 40: I. Allegro appassionato
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T20:22:46Z
audio: Piano Concerto No. 2 in D Minor, Op. 40: I. Allegro appassionato
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Piano Concerto in A Minor, MWV 0 2 (1822): I. Allegro
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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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Schumann: Violin Concertos (Hyperion Romantic Violin Concerto 13)
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  subject of: OpenTimestamps Proof of Existence
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track: Brandenburg Concerto No. 6 in B flat, BWV 1051: 2. Adagio ma non tanto
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track: Brandenburg Concerto No. 2 in F, BWV 1047: 2. Andante
track: Brandenburg Concerto No. 2 in F, BWV 1047: 3. Allegro assai
track: Brandenburg Concerto No. 3 in G, BWV 1048: 1. (Allegro)
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track: Brandenburg Concerto No. 5 in D Major, BWV 1050: 1. Allegro
track: Brandenburg Concerto No. 5 in D, BWV 1050: 2. Affetuoso
track: Brandenburg Concerto No. 5 in D, BWV 1050: 3. Allegro

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Brandenburg Concerto No. 1 in F, BWV 1046: 2. Adagio
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Brandenburg Concerto No. 6 in B flat, BWV 1051: 2. Adagio ma non tanto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T14:36:16Z
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Brandenburg Concerto No. 1 in F, BWV 1046: 3. Allegro
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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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Brandenburg Concerto No. 6 in B flat, BWV 1051: 3. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T14:36:16Z
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Brandenburg Concerto No. 1 in F, BWV 1046: 4. Menuet - Trio - Polonaise
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Brandenburg Concerto No. 1 in F, BWV 1046: 4. Menuet - Trio - Polonaise
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Brandenburg Concerto No. 2 in F, BWV 1047: 1. (Allegro)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-22T15:38:35Z
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Brandenburg Concerto No. 2 in F, BWV 1047: 2. Andante
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subject of: OpenTimestamps Proof of Existence
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Brandenburg Concerto No. 2 in F, BWV 1047: 3. Allegro assai
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957075
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059002303
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T18:50:38Z
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 0xbc1e9bb859fb5ca952d71ef64e629c7be5870b4a1ad915e38740c84c2ddfd68d. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059002303.
  date published: 2026-07-07T18:50:38Z
audio: Brandenburg Concerto No. 2 in F, BWV 1047: 3. Allegro assai
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  additional property: Tempo (BPM)
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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: Mode Name
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Brandenburg Concerto No. 3 in G, BWV 1048: 1. (Allegro)
type: MusicRecording
duration: PT6M3S
duration ms: 363840
explicit: false
by artist: Johann Sebastian Bach
by artist: Chamber Orchestra of Europe
in album: Bach, J.S.: 6 Brandenburg Concertos; Oboe Concertos
  type: MusicAlbum
  date published: 2011-01-01
popularity: 11
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: DEF059002311
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-07-22T10:13:18+00:00
additional property: CopyrightChainExplorerURL
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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/DEF059002311
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 0x61d36c62f2e493c0d37557c6261eef928f26c7e87e55bbae9cb53ee698af27af. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/DEF059002311.
  date published: 2026-07-22T11:35:32Z
audio: Brandenburg Concerto No. 3 in G, BWV 1048: 1. (Allegro)
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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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    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.101
  additional property: Key Name
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Brandenburg Concerto No. 3 in G, BWV 1048: 3. Allegro
type: MusicRecording
duration: PT4M45S
duration ms: 285506
explicit: false
by artist: Johann Sebastian Bach
by artist: Chamber Orchestra of Europe
in album: Bach, J.S.: 6 Brandenburg Concertos; Oboe Concertos
  type: MusicAlbum
  date published: 2011-01-01
popularity: 8
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: DEF059002313
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T21:04:58+00:00
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/DEF059002313
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 0xefe45d97f934b4c06d458ee7618b24daedb97e7d2eee522e4fa97cc2d06bebbf. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059002313.
  date published: 2026-07-29T21:09:47Z
audio: Brandenburg Concerto No. 3 in G, BWV 1048: 3. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 134.616
  additional property: Musical Key
    type: PropertyValue
    value: 7
  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: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
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Brandenburg Concerto No. 4 in G, BWV 1049: 1. Allegro
type: MusicRecording
duration: PT6M48S
duration ms: 408986
explicit: false
by artist: Johann Sebastian Bach
by artist: Chamber Orchestra of Europe
by artist: Marieke Blankestijn
by artist: Thierry Fischer
by artist: Josine Buter
in album: Bach, J.S.: 6 Brandenburg Concertos; Oboe Concertos
  type: MusicAlbum
  date published: 2011-01-01
popularity: 8
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: DEF059002321
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T01:14:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5b87a2c75b02a25a001fb9a99c559429389c6e931713ca4892da4d4ae60f05c5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960185
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059002321
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T01:32:48Z
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 0x5b87a2c75b02a25a001fb9a99c559429389c6e931713ca4892da4d4ae60f05c5. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059002321.
  date published: 2026-07-30T01:32:48Z
audio: Brandenburg Concerto No. 4 in G, BWV 1049: 1. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.422
  additional property: Energy
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    value: 0.187
  additional property: Speechiness
    type: PropertyValue
    value: 0.055
  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.757
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.727
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
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Brandenburg Concerto No. 4 in G, BWV 1049: 2. Andante
type: MusicRecording
duration: PT3M34S
duration ms: 214333
explicit: false
by artist: Johann Sebastian Bach
by artist: Chamber Orchestra of Europe
by artist: Marieke Blankestijn
by artist: Thierry Fischer
by artist: Josine Buter
in album: Bach, J.S.: 6 Brandenburg Concertos; Oboe Concertos
  type: MusicAlbum
  date published: 2011-01-01
popularity: 7
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: DEF059002322
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T18:55:46+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xafde8ff536adbc8f388bc6d9ac9bfd6b4cf3802c715a95dcd969120c69dba5c9
additional property: OTSHash
additional property: OTSBitcoinBlock
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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/DEF059002322
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 0xafde8ff536adbc8f388bc6d9ac9bfd6b4cf3802c715a95dcd969120c69dba5c9. 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/DEF059002322.
  date published: 2026-07-08T03:20:19Z
audio: Brandenburg Concerto No. 4 in G, BWV 1049: 2. Andante
  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: 0.14
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
    value: 0.055
  additional property: Acousticness
    type: PropertyValue
    value: 0.879
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.089
  additional property: Liveness
    type: PropertyValue
    value: 0.229
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.098
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.445
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
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Brandenburg Concerto No. 4 in G, BWV 1049: 3. Presto
type: MusicRecording
duration: PT4M34S
duration ms: 274866
explicit: false
by artist: Johann Sebastian Bach
by artist: Chamber Orchestra of Europe
by artist: Marieke Blankestijn
by artist: Thierry Fischer
by artist: Josine Buter
in album: Bach, J.S.: 6 Brandenburg Concertos; Oboe Concertos
  type: MusicAlbum
  date published: 2011-01-01
popularity: 7
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: DEF059002323
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T06:55:14+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc2ff63a37a5c9d763468b6a321da90d1aa570e3734017bdcfaffcf4d6344a55f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960220
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960220
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059002323
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T07:28:30Z
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 0xc2ff63a37a5c9d763468b6a321da90d1aa570e3734017bdcfaffcf4d6344a55f. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/DEF059002323.
  date published: 2026-07-30T07:28:30Z
audio: Brandenburg Concerto No. 4 in G, BWV 1049: 3. Presto
  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: 0.544
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
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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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Brandenburg Concerto No. 5 in D Major, BWV 1050: 1. Allegro
type: MusicRecording
duration: PT10M3S
duration ms: 603746
explicit: false
by artist: Johann Sebastian Bach
by artist: Chamber Orchestra of Europe
by artist: Thierry Fischer
by artist: Marieke Blankestijn
by artist: Ian Watson
in album: Bach, J.S.: 6 Brandenburg Concertos; Oboe Concertos
  type: MusicAlbum
  date published: 2011-01-01
popularity: 7
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: DEF059002331
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T00:18:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x44df5083af81b549e8956653839ffcdbe4b452b0dc57518193007c0925349def
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/DEF059002331
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 0x44df5083af81b549e8956653839ffcdbe4b452b0dc57518193007c0925349def. 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/DEF059002331.
  date published: 2026-07-08T03:20:19Z
audio: Brandenburg Concerto No. 5 in D Major, BWV 1050: 1. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Musical Key
    type: PropertyValue
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Brandenburg Concerto No. 5 in D, BWV 1050: 2. Affetuoso
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by artist: Chamber Orchestra of Europe
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subject of: OpenTimestamps Proof of Existence
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Brandenburg Concerto No. 5 in D, BWV 1050: 3. Allegro
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  date published: 2026-07-08T03:20:19Z
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Beethoven: Symphonies Nos. 1 and 3
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Beethoven: Symphonies Nos. 4 & 7
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    date published: 2026-07-08T03:20:19Z
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Mahler: Symphony No. 4 (arr. Erwin Stein)
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Music for Strings
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-30T08:30:10Z
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track: Britten: Lachrymae for Viola and Strings, Op. 48a
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-31T15:20:33Z
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track: Purcell / Arr. Stokowski: Dido and Aeneas, Z. 626, Act III: Song. When I Am Laid in Earth
track: Walton : Incidental Music to Henry V : 'Touch her soft lips and part'

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OpenTimestamps Proof of Existence
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date published: 2026-07-30T03:35:13Z

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  value: 2026-07-06T04:43:46+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xabd814bd853468b7b82abb29d826bdbe4dc007756f84e8a1b7f64c70f3cf3a68
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956889
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956889
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELP0400147
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T06:56:49Z
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 0xabd814bd853468b7b82abb29d826bdbe4dc007756f84e8a1b7f64c70f3cf3a68. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELP0400147.
  date published: 2026-07-06T06:56:49Z
audio: Purcell / Arr. Stokowski: Dido and Aeneas, Z. 626, Act III: Song. When I Am Laid in Earth
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  additional property: Tempo (BPM)
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    value: 107.64
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.16
  additional property: Energy
    type: PropertyValue
    value: 0.022
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.825
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.966
  additional property: Liveness
    type: PropertyValue
    value: 0.35
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.033
  additional property: Loudness (dB)
    type: PropertyValue
    value: -30.806
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Walton : Incidental Music to Henry V : 'Touch her soft lips and part'
type: MusicRecording
duration: PT1M55S
duration ms: 115906
explicit: false
by artist: William Walton
by artist: Chamber Orchestra of Europe
by artist: Douglas Boyd
in album: Music for Strings
  type: MusicAlbum
  date published: 2004-03-01
isrc code: GBELP0400150
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T08:10:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbd1f2e01a627d180fc00b57c182ac2cef45320f01fa0db8ca552f492b286e6f2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960229
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960229
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELP0400150
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T08:30:10Z
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 0xbd1f2e01a627d180fc00b57c182ac2cef45320f01fa0db8ca552f492b286e6f2. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/GBELP0400150.
  date published: 2026-07-30T08:30:10Z
audio: Walton : Incidental Music to Henry V : 'Touch her soft lips and part'
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.402
  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: 0.15
  additional property: Energy
    type: PropertyValue
    value: 0.013
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.901
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.921
  additional property: Liveness
    type: PropertyValue
    value: 0.121
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.041
  additional property: Loudness (dB)
    type: PropertyValue
    value: -35.783
  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
    type: PropertyValue
    value: Major

Beethoven: Symphonies Nos. 2 & 5
type: MusicAlbum
date published: 2004
track: Symphony No. 2 In D Major, Op. 36: I. Adagio Molto - Allegro Con Brio
  type: MusicRecording
  duration: PT12M24S
  duration ms: 744760
  explicit: false
  by artist: Ludwig van Beethoven
  by artist: Manchester Camerata
  by artist: Douglas Boyd
  in album: Beethoven: Symphonies Nos. 2 & 5
    type: MusicAlbum
    date published: 2004
  genre: classical
  genre: classical-piano
  genre: chamber-music
  isrc code: GBELX0400717
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-30T15:41:38+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x17d9127018bfd59d7ce9e9d47b62fa3ad0086b83230c4b9304821e6a6f70246b
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960276
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960276
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELX0400717
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T16:01:17Z
  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 0x17d9127018bfd59d7ce9e9d47b62fa3ad0086b83230c4b9304821e6a6f70246b. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELX0400717.
    date published: 2026-07-30T16:01:17Z
  audio: Symphony No. 2 In D Major, Op. 36: I. Adagio Molto - Allegro Con Brio
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 111.405
    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: 0.318
    additional property: Energy
      type: PropertyValue
      value: 0.084
    additional property: Speechiness
      type: PropertyValue
      value: 0.036
    additional property: Acousticness
      type: PropertyValue
      value: 0.958
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.811
    additional property: Liveness
      type: PropertyValue
      value: 0.079
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.142
    additional property: Loudness (dB)
      type: PropertyValue
      value: -23.172
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Symphony No. 2 In D Major, Op. 36: II. Larghetto
  type: MusicRecording
  duration: PT11M0S
  duration ms: 660880
  explicit: false
  by artist: Ludwig van Beethoven
  by artist: Manchester Camerata
  by artist: Douglas Boyd
  in album: Beethoven: Symphonies Nos. 2 & 5
    type: MusicAlbum
    date published: 2004
  genre: classical
  genre: classical-piano
  genre: chamber-music
  isrc code: GBELX0400718
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-30T14:38:47+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x7ac5e734265548cf9f86dcf027a495d8a854b04066658e272c49a73b1de22c07
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960268
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960268
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELX0400718
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T14:53:07Z
  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 0x7ac5e734265548cf9f86dcf027a495d8a854b04066658e272c49a73b1de22c07. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELX0400718.
    date published: 2026-07-30T14:53:07Z
  audio: Symphony No. 2 In D Major, Op. 36: II. Larghetto
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 104.044
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.318
    additional property: Energy
      type: PropertyValue
      value: 0.009
    additional property: Speechiness
      type: PropertyValue
      value: 0.04
    additional property: Acousticness
      type: PropertyValue
      value: 0.977
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.231
    additional property: Liveness
      type: PropertyValue
      value: 0.081
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.063
    additional property: Loudness (dB)
      type: PropertyValue
      value: -28.321
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Symphony No. 2 In D Major, Op. 36: III. Scherzo: Allegro
  type: MusicRecording
  duration: PT3M32S
  duration ms: 212386
  explicit: false
  by artist: Ludwig van Beethoven
  by artist: Manchester Camerata
  by artist: Douglas Boyd
  in album: Beethoven: Symphonies Nos. 2 & 5
    type: MusicAlbum
    date published: 2004
  genre: classical
  genre: classical-piano
  genre: chamber-music
  isrc code: GBELX0400719
  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: Symphony No. 2 In D Major, Op. 36: III. Scherzo: Allegro
track: Symphony No. 5 In C Minor, Op. 67: I. Allegro Con Brio
track: Symphony No. 5 In C Minor, Op. 67: II. Andante Con Moto
track: Symphony No. 5 In C Minor, Op. 67: III. Allegro
track: Symphony No. 5 In C Minor, Op. 67: IV. Allegro

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-30T18:06:18+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x4a6240b25999c2855ec0f40d2b81a1311d25075d052a4447c69f44142c3a73c6

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 960291

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960291

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELX0400719

OTSTimestamp
type: PropertyValue
value: 2026-07-30T18:23:33Z

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 0x4a6240b25999c2855ec0f40d2b81a1311d25075d052a4447c69f44142c3a73c6. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELX0400719.
date published: 2026-07-30T18:23:33Z

Symphony No. 2 In D Major, Op. 36: III. Scherzo: Allegro
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 153.359
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: 0.406
additional property: Energy
  type: PropertyValue
  value: 0.065
additional property: Speechiness
  type: PropertyValue
  value: 0.044
additional property: Acousticness
  type: PropertyValue
  value: 0.95
additional property: Instrumentalness
  type: PropertyValue
  value: 0.527
additional property: Liveness
  type: PropertyValue
  value: 0.15
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.66
additional property: Loudness (dB)
  type: PropertyValue
  value: -26.579
additional property: Key Name
  type: PropertyValue
  value: D
additional property: Mode Name
  type: PropertyValue
  value: Major

Symphony No. 5 In C Minor, Op. 67: I. Allegro Con Brio
type: MusicRecording
duration: PT6M56S
duration ms: 416040
explicit: false
by artist: Ludwig van Beethoven
by artist: Manchester Camerata
by artist: Douglas Boyd
in album: Beethoven: Symphonies Nos. 2 & 5
  type: MusicAlbum
  date published: 2004
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: GBELX0400721
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T18:31:57+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x81d1bf2c03bb912bc3df6a061bcbcbe8ba84c7f85f08bc57a34d627794261771
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960294
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960294
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELX0400721
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T18:46:00Z
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 0x81d1bf2c03bb912bc3df6a061bcbcbe8ba84c7f85f08bc57a34d627794261771. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELX0400721.
  date published: 2026-07-30T18:46:00Z
audio: Symphony No. 5 In C Minor, Op. 67: I. Allegro Con Brio
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 118.42
  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: 0.476
  additional property: Energy
    type: PropertyValue
    value: 0.193
  additional property: Speechiness
    type: PropertyValue
    value: 0.053
  additional property: Acousticness
    type: PropertyValue
    value: 0.943
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.792
  additional property: Liveness
    type: PropertyValue
    value: 0.059
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.206
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.842
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Symphony No. 5 In C Minor, Op. 67: II. Andante Con Moto
type: MusicRecording
duration: PT9M32S
duration ms: 572586
explicit: false
by artist: Ludwig van Beethoven
by artist: Manchester Camerata
by artist: Douglas Boyd
in album: Beethoven: Symphonies Nos. 2 & 5
  type: MusicAlbum
  date published: 2004
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: GBELX0400722
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T23:55:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe743466dfde14c7ecf4a6f6451c6f0c9560e045fa7ebd2827e499ee47e842e0e
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/GBELX0400722
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
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Symphony No. 5 In C Minor, Op. 67: III. Allegro
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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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Bassoon Concertos: Michael Haydn, Mozart, Stamitz & Weber
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Sciarrino - Ligeti - Schoenberg
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-31T06:42:11Z
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track: 3 Romances, Op. 94: No. 2 Einfach, innig
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  subject of: OpenTimestamps Proof of Existence
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track: Adagio and Allegro in A Flat Major, Op. 70: I. Langsam, mit innigem Ausdruck
track: Adagio and Allegro in A Flat Major, Op. 70: II. Rasch und feurig

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date published: 2026-07-31T13:04:34Z

3 Romances, Op. 94: No. 3 Nicht schnell
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Adagio and Allegro in A Flat Major, Op. 70: I. Langsam, mit innigem Ausdruck
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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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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:53:27Z
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track: Oboe Concerto in A minor, R.463: 1. Allegro
track: Oboe Concerto in A minor, R.463: 2. Largo
track: Oboe Concerto in A minor, R.463: 3. Allegro
track: Concerto for Oboe, Violin, Strings and Continuo in B flat, R.548: 1. (Allegro)
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track: Oboe Concerto in D, R.453: 1. Allegro
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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: 2026-07-30T18:23:33Z
audio: Oboe Concerto in A minor, R.463: 3. Allegro
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Concerto for Oboe, Violin, Strings and Continuo in B flat, R.548: 1. (Allegro)
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duration: PT3M36S
duration ms: 216000
explicit: false
by artist: Antonio Vivaldi
by artist: Douglas Boyd
by artist: Marieke Blankestijn
by artist: Howard Penny
by artist: Harold Lister
by artist: Chamber Orchestra of Europe
in album: Vivaldi: Oboe Concertos
  type: MusicAlbum
  date published: 1992-01-01
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: DEF059103581
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
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059103581
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: 2026-07-30T15:42:38Z
audio: Concerto for Oboe, Violin, Strings and Continuo in B flat, R.548: 1. (Allegro)
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Concerto for Oboe, Violin, Strings and Continuo in B flat, R.548: 2. Largo
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duration: PT2M42S
duration ms: 162000
explicit: false
by artist: Antonio Vivaldi
by artist: Douglas Boyd
by artist: Marieke Blankestijn
by artist: Howard Penny
by artist: Harold Lister
by artist: Chamber Orchestra of Europe
in album: Vivaldi: Oboe Concertos
  type: MusicAlbum
  date published: 1992-01-01
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: DEF059103582
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
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  date published: 2026-07-08T03:20:19Z
audio: Concerto for Oboe, Violin, Strings and Continuo in B flat, R.548: 2. Largo
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Concerto for Oboe, Violin, Strings and Continuo in B flat, R.548: 3. Allegro
type: MusicRecording
duration: PT2M6S
duration ms: 126000
explicit: false
by artist: Antonio Vivaldi
by artist: Douglas Boyd
by artist: Marieke Blankestijn
by artist: Howard Penny
by artist: Harold Lister
by artist: Chamber Orchestra of Europe
in album: Vivaldi: Oboe Concertos
  type: MusicAlbum
  date published: 1992-01-01
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: DEF059103583
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
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059103583
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: 2026-07-07T04:27:57Z
audio: Concerto for Oboe, Violin, Strings and Continuo in B flat, R.548: 3. Allegro
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Oboe Concerto in D, R.453: 1. Allegro
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duration: PT3M26S
duration ms: 206000
explicit: false
by artist: Antonio Vivaldi
by artist: Douglas Boyd
by artist: Howard Penny
by artist: Chamber Orchestra of Europe
by artist: Harold Lister
in album: Vivaldi: Oboe Concertos
  type: MusicAlbum
  date published: 1992-01-01
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: DEF059103591
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
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059103591
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dc4b9901f6cce2ec90a5c2d3f478b5fca0114186eed246c2565a6b305024567. 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/DEF059103591.
  date published: 2026-07-08T03:20:19Z
audio: Oboe Concerto in D, R.453: 1. Allegro
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  additional property: Valence (Positivity)
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Oboe Concerto in D, R.453: 2. Largo
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duration: PT1M45S
duration ms: 105000
explicit: false
by artist: Antonio Vivaldi
by artist: Douglas Boyd
by artist: Howard Penny
by artist: Chamber Orchestra of Europe
by artist: Harold Lister
in album: Vivaldi: Oboe Concertos
  type: MusicAlbum
  date published: 1992-01-01
genre: classical
genre: early-music
genre: baroque
genre: concerto
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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: 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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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x374167744212213fb0e813ddd1a312b0de642c837fa9a7ba8164bba63a3dfdd1. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059103592.
  date published: 2026-07-07T16:43:08Z
audio: Oboe Concerto in D, R.453: 2. Largo
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Oboe Concerto in D, R.453: 3. Allegro
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duration: PT2M55S
duration ms: 175000
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by artist: Antonio Vivaldi
by artist: Douglas Boyd
by artist: Howard Penny
by artist: Chamber Orchestra of Europe
by artist: Harold Lister
in album: Vivaldi: Oboe Concertos
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genre: classical
genre: early-music
genre: baroque
genre: concerto
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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
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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 0xb718f8b9f5ab19fa0e27d4cb5c9bd161d82a8dfe81068c9148fceb08edccb232. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/DEF059103593.
  date published: 2026-07-30T22:27:30Z
audio: Oboe Concerto in D, R.453: 3. Allegro
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Oboe Concerto in A minor, RV 461 (for Oboe, Strings and Continuo): Allegro non molto
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Oboe Concerto in A minor, RV 461 (for Oboe, Strings and Continuo): Larghetto
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Oboe Concerto in C, R.447: 1. Allegro non molto
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Mozart: Oboe Concerto in C; Sinfonia Concertante in E flat; Clarinet Concerto in A
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Bach, J.S.: Oboe Concertos BWV 1053, 1059 & 1055
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track: Concerto for Harpsichord, Strings, and Continuo No. 2 in E, BWV 1053: 2. Siciliano
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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: 2026-07-30T02:21:55Z
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  subject of: OpenTimestamps Proof of Existence
  audio: Concerto for Harpsichord, Strings, and Continuo No. 2 in E, BWV 1053: 3. Allegro
track: Concerto for Harpsichord, Oboe, Strings, and Continuo in D minor, BWV 1059: 1. Allegro
track: Concerto for Harpsichord, Oboe, Strings, and Continuo in D minor, BWV 1059: 2. Adagio
track: Concerto for Harpsichord, Oboe, Strings, and Continuo in D minor, BWV 1059: 3. Presto
track: Concerto for Harpsichord, Strings, and Continuo No. 4 in A, BWV 1055: 1. (Allegro moderato)
track: Concerto for Harpsichord, Strings, and Continuo No. 4 in A, BWV 1055: 2. Larghetto
track: Concerto for Harpsichord, Strings, and Continuo No. 4 in A, BWV 1055: 3. Allegro ma non tanto

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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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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: 2026-07-30T19:42:40Z

Concerto for Harpsichord, Strings, and Continuo No. 2 in E, BWV 1053: 3. Allegro
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Concerto for Harpsichord, Oboe, Strings, and Continuo in D minor, BWV 1059: 1. Allegro
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duration: PT5M53S
duration ms: 353160
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by artist: Johann Sebastian Bach
by artist: Douglas Boyd
by artist: Chamber Orchestra of Europe
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  date published: 1990-01-01
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
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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: 2026-07-30T02:05:19Z
audio: Concerto for Harpsichord, Oboe, Strings, and Continuo in D minor, BWV 1059: 1. Allegro
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Concerto for Harpsichord, Oboe, Strings, and Continuo in D minor, BWV 1059: 2. Adagio
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duration: PT2M49S
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by artist: Johann Sebastian Bach
by artist: Douglas Boyd
by artist: Chamber Orchestra of Europe
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  type: MusicAlbum
  date published: 1990-01-01
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
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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: 2026-07-29T14:28:24Z
audio: Concerto for Harpsichord, Oboe, Strings, and Continuo in D minor, BWV 1059: 2. Adagio
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Concerto for Harpsichord, Oboe, Strings, and Continuo in D minor, BWV 1059: 3. Presto
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duration: PT3M10S
duration ms: 190133
explicit: false
by artist: Johann Sebastian Bach
by artist: Douglas Boyd
by artist: Chamber Orchestra of Europe
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  type: MusicAlbum
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genre: classical
genre: classical-piano
genre: early-music
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genre: chamber-music
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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: 2026-07-30T15:42:38Z
audio: Concerto for Harpsichord, Oboe, Strings, and Continuo in D minor, BWV 1059: 3. Presto
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Concerto for Harpsichord, Strings, and Continuo No. 4 in A, BWV 1055: 1. (Allegro moderato)
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duration ms: 267000
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by artist: Johann Sebastian Bach
by artist: Douglas Boyd
by artist: Chamber Orchestra of Europe
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  date published: 1990-01-01
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
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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 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: Concerto for Harpsichord, Strings, and Continuo No. 4 in A, BWV 1055: 1. (Allegro moderato)
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Concerto for Harpsichord, Strings, and Continuo No. 4 in A, BWV 1055: 2. Larghetto
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by artist: Chamber Orchestra of Europe
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genre: classical
genre: classical-piano
genre: early-music
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genre: chamber-music
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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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Concerto for Harpsichord, Strings, and Continuo No. 4 in A, BWV 1055: 3. Allegro ma non tanto
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Mozart / Strauss: Oboe Concertos
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J.S.Bach:Violinkonzerte BWV 1041-1043; BWV 1060
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Bach: Violin Concertos / Vivaldi: The Four Seasons
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Après un rêve
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Haydn: Symphony No. 85 in B-Flat Major
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Haydn: Symphony No. 83 in G Minor
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Clarinet Concerto in A Major, K. 622: II. Adagio
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Der Schwan - Karneval der Tiere
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Brandenburg Concerto No. 2 in F, BWV 1047: 1. (Allegro)
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Dvořák: From the Bohemian Forest, Op. 68, B. 133: V. Silent Woods
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    value: 0.934
  additional property: Liveness
    type: PropertyValue
    value: 0.209
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.036
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.477
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major