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genre: opera
description: Alessandra Marc, born Judith Borden (born July 29, 1957) is an American dramatic soprano who has appeared at many of the world's opera houses and orchestras.Alessandra Marc, Thrilling in 'Russian Musi
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  track: Die Walküre, WWV 86B / Act 1: "Schläfst du, Gast?...Der Männer Sippe saß hier"
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Die Walküre, WWV 86B / Act 1: "Schläfst du, Gast?...Der Männer Sippe saß hier"
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Die Walküre, WWV 86B / Act 1: "Du bist der Lenz"
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Entartete Musik
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    date published: 2026-07-08T03:53:27Z
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track: Symphony No. 1 in D Major "Titan": III. Feierlich und gemessen, ohne zu schleppen
track: Symphony No. 2 in C Minor "Resurrection": V. Finale. Im tempo des scherzos
track: Symphony No. 2 in C Minor "Resurrection": I. Allegro maestoso
track: Symphony No. 3 in D Minor: VI. Langsam. Ruhevoll. Empfunden

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Symphony No. 6 in A Minor "Tragic": I. Allegro energico, ma non troppo. Heftig aber markig
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Symphony No. 1 in D Major "Titan": III. Feierlich und gemessen, ohne zu schleppen
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Symphony No. 2 in C Minor "Resurrection": V. Finale. Im tempo des scherzos
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  date published: 2026-07-08T03:53:27Z
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Symphony No. 3 in D Minor: VI. Langsam. Ruhevoll. Empfunden
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40 Most Beautiful Classical Anthems
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track: Elgar: 5 Pomp and Circumstance Marches, Op. 39: No. 1 in D Major
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Puccini: Turandot, Act 3: "Nessun dorma" (Calaf)
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Tchaikovsky: 1812 Overture in E-Flat Major, Op. 49 (Excerpt)
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Vivaldi: The Four Seasons, Violin Concerto in E Major, Op. 8 No. 1, RV 269 "Spring": I. Allegro
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Handel: Messiah, HWV 56, Pt. 2, Scene 7: Chorus. "Hallelujah"
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Parry: Jerusalem (Arr. Elgar)
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Beethoven: Symphony No. 9 in D Minor, Op. 125 "Choral": IV. Presto - "O Freunde, nicht diese Töne!" (Ode to Joy) [Excerpt]
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Mussorgsky: Pictures at an Exhibition: I. Promenade
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Saint-Saëns: Symphony No. 3 in C Minor, Op. 78 "Organ Symphony": II. (b) Maestoso - Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T11:34:59Z
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Verdi: Aïda, Act 2: "Gloria all'Egitto, ad Iside" (Chorus - Triumphal Scene)
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subject of: OpenTimestamps Proof of Existence
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Vivaldi: The Four Seasons, Violin Concerto in G Minor, Op. 8 No. 2, RV 315 "Summer": III. Presto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T16:07:00Z
audio: Vivaldi: The Four Seasons, Violin Concerto in G Minor, Op. 8 No. 2, RV 315 "Summer": III. Presto
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Trad / Arr Spiegl : Radio 4 UK Theme
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subject of: OpenTimestamps Proof of Existence
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audio: Trad / Arr Spiegl : Radio 4 UK Theme
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Holst: The Planets, Op. 32: IV. Jupiter, the Bringer of Jollity (Excerpt)
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Elgar: Variations on an Original Theme, Op. 36 "Enigma": Variation IX. Nimrod
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  date published: 2026-07-07T20:41:57Z
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Vaughan Williams: Fantasia on Greensleeves
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  date published: 2026-06-13T17:25:41Z
audio: Vaughan Williams: Fantasia on Greensleeves
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Coates: Dambusters March
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  value: 2026-07-06T07:16:32Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2775bb9542193e54bcfeebeb4aef26a75d750f59c88173380ff1aaf8634dcba4. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GBELP0790021.
  date published: 2026-07-06T07:16:32Z
audio: Coates: Dambusters March
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  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.34
  additional property: Energy
    type: PropertyValue
    value: 0.195
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.946
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.854
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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Binge: Sailing By (Radio 4, Shipping Forecast theme)
type: MusicRecording
duration: PT2M31S
duration ms: 151133
explicit: false
by artist: Ronald Binge
by artist: BBC Symphony Orchestra
by artist: David Parry
in album: 40 Most Beautiful Classical Anthems
  type: MusicAlbum
  date published: 2008-12-09
popularity: 21
genre: light-music
isrc code: GBELP0790022
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELP0790022
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e294a5abcb5a77acc0f4b6d2d2f6996c4c70f968873befbf387f2ffc00e8e7d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELP0790022.
  date published: 2026-07-02T03:30:09Z
audio: Binge: Sailing By (Radio 4, Shipping Forecast theme)
  type: AudioObject
  additional property: Tempo (BPM)
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  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: 0.203
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.965
  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Coates: By the Sleepy Lagoon (Instrumental Version)
type: MusicRecording
duration: PT3M57S
duration ms: 237693
explicit: false
by artist: Eric Coates
by artist: David Parry
by artist: BBC Symphony Orchestra
in album: 40 Most Beautiful Classical Anthems
  type: MusicAlbum
  date published: 2008-12-09
popularity: 10
isrc code: GBELP0790025
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957073
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957073
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELP0790025
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T18:39:05Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f5c6f73267d9c28bb2e97127eec3eae5fcffb578302dd66529a44fce45dd1a1. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBELP0790025.
  date published: 2026-07-07T18:39:05Z
audio: Coates: By the Sleepy Lagoon (Instrumental Version)
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.148
  additional property: Energy
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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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Wood, Arthur : My Native Heath : IV Barwick Green [The Archers theme]
type: MusicRecording
duration: PT3M16S
duration ms: 196959
explicit: false
by artist: Arthur Wood
by artist: BBC Symphony Orchestra
by artist: David Parry
in album: 40 Most Beautiful Classical Anthems
  type: MusicAlbum
  date published: 2008-12-09
popularity: 10
isrc code: GBELP0790024
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T09:58:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x73b7e1f03fb22f80b11e59f260f6bbca22c2e7ad4981b5280eefa55e4fb686a6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957026
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957026
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELP0790024
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T11:02:43Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b7e1f03fb22f80b11e59f260f6bbca22c2e7ad4981b5280eefa55e4fb686a6. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELP0790024.
  date published: 2026-07-07T11:02:43Z
audio: Wood, Arthur : My Native Heath : IV Barwick Green [The Archers theme]
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 133.574
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.445
  additional property: Energy
    type: PropertyValue
    value: 0.119
  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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Wood, Henry : Fantasia on British Sea Songs : Sailor's Hornpipe [Excerpt]
type: MusicRecording
duration: PT2M11S
duration ms: 131199
explicit: false
by artist: Sir Henry Wood
by artist: BBC Symphony Orchestra
by artist: David Parry
in album: 40 Most Beautiful Classical Anthems
  type: MusicAlbum
  date published: 2008-12-09
popularity: 22
isrc code: GBELP0790026
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-11T05:28:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x397b694b7ab43b082711bf5f6523095dbd00cd9ade0737567aec25fbe9e89223
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953536
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELP0790026
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397b694b7ab43b082711bf5f6523095dbd00cd9ade0737567aec25fbe9e89223. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELP0790026.
  date published: 2026-06-13T17:25:41Z
audio: Wood, Henry : Fantasia on British Sea Songs : Sailor's Hornpipe [Excerpt]
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  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: 0.323
  additional property: Energy
    type: PropertyValue
    value: 0.058
  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
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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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Fucik : Entry of the Gladiators Op.68
type: MusicRecording
duration: PT2M44S
duration ms: 164826
explicit: false
by artist: Julius Fučík
by artist: Václav Neumann
by artist: Czech Philharmonic
in album: 40 Most Beautiful Classical Anthems
  type: MusicAlbum
  date published: 2008-12-09
popularity: 29
isrc code: DEA807201400
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T02:13:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x35b6f1eb47399bc01b16825a292bac1aea0e96632ddef8c1218593c01446ec6d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA807201400
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35b6f1eb47399bc01b16825a292bac1aea0e96632ddef8c1218593c01446ec6d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA807201400.
  date published: 2026-06-13T13:32:09Z
audio: Fucik : Entry of the Gladiators Op.68
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 132.594
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.853
  additional property: Instrumentalness
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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Barber: Adagio for Strings, Op. 11
type: MusicRecording
duration: PT3M39S
duration ms: 219573
explicit: false
by artist: Samuel Barber
by artist: Lawrence Foster
by artist: Monte-Carlo Philharmonic Orchestra
in album: 40 Most Beautiful Classical Anthems
  type: MusicAlbum
  date published: 2008-12-09
popularity: 11
isrc code: FRZ208300101
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T09:36:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xaeee8dc43b73737bf6dc6adda557a06a97ab8c5c3100f032e8ddcf1d671f2100
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957061
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957061
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ208300101
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T16:07:00Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeee8dc43b73737bf6dc6adda557a06a97ab8c5c3100f032e8ddcf1d671f2100. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/FRZ208300101.
  date published: 2026-07-07T16:07:00Z
audio: Barber: Adagio for Strings, Op. 11
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  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
    value: 6
  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: 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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Wagner : Tannhäuser : Act 1 Overture
type: MusicRecording
duration: PT3M4S
duration ms: 184840
explicit: false
by artist: Richard Wagner
by artist: Marek Janowski
by artist: Philharmonia Orchestra
in album: 40 Most Beautiful Classical Anthems
  type: MusicAlbum
  date published: 2008-12-09
popularity: 7
genre: classical
genre: opera
isrc code: DEA809004612
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T09:07:16+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdaedfaa282b4a9761c1231742ce61628e4d0a66b3244c0739d9581f11f8c02bf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957055
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957055
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA809004612
additional property: OTSTimestamp
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  value: 2026-07-07T15:12:44Z
additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T15:12:44Z
audio: Wagner : Tannhäuser : Act 1 Overture
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Sibelius: Karelia Suite, Op. 11: I. Intermezzo
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by artist: Helsinki Philharmonic Orchestra
by artist: Okko Kamu
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popularity: 9
genre: classical
genre: impressionism
genre: post-romantic-era
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T06:56:49Z
audio: Sibelius: Karelia Suite, Op. 11: I. Intermezzo
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Charpentier: Te Deum, H. 146: I. Prélude
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T11:34:59Z
audio: Charpentier: Te Deum, H. 146: I. Prélude
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Ravel: Boléro, M. 81
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:53:06Z
audio: Ravel: Boléro, M. 81
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Arne: Rule Britannia!
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by artist: Andrew Davis
by artist: BBC Singers
by artist: BBC Symphony Chorus
by artist: BBC Symphony Orchestra
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T11:34:59Z
audio: Arne: Rule Britannia!
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Mahler: Symphonies Nos. 1-9
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Mahler: Symphony No. 8 in E-Flat Major / Schoenberg: Jakobsleiter (Die)
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Part, A.: Cantus in Memoriam Benjamin Britten / Allegri, G.: Miserere / Webern, A.: Langsamer Satz (Secret Classics)
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date published: 1994-01-01

Daniel Barenboim - The Conductor
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-06T07:53:57Z
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track: Bernstein: Symphonic Dances from West Side Story: No. 3, Scherzo
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:22:41Z
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track: Bernstein: Symphonic Dances from West Side Story: No. 7a, Cool
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  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
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track: Bernstein: Symphonic Dances from West Side Story: No. 8, Rumble
track: Bernstein: Symphonic Dances from West Side Story: No. 9, Finale
track: Wagner: Parsifal, Act 2: Prelude
track: Wagner: Parsifal, Act 3: Prelude
track: Wagner: Die Walküre, Act 2: Prelude
track: Berlioz: Symphonie fantastique, Op. 14, H 48: II. Un bal. Valse
track: Mozart: Le nozze di Figaro, K. 492: Overture
track: Ravel: Pavane pour une infante défunte, M. 19
track: Wagner: Die Walküre, Act 3: The Ride of the Valkyries
track: Mozart: Così fan tutte, K. 588: Overture
track: Mozart: Requiem in D Minor, K. 626: I. Introitus
track: Mozart: Requiem in D Minor, K. 626: II. Kyrie
track: Mozart: Requiem in D Minor, K. 626: VIII. Lacrimosa
track: Mozart: Requiem in D Minor, K. 626: X. Hostias
track: Mozart: Requiem in D Minor, K. 626: XIII. Agnus Dei
track: Mozart: Requiem in D Minor, K. 626: XIV. Communio

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

OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:22:41Z

Bernstein: Symphonic Dances from West Side Story: No. 7a, Cool
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Bernstein: Symphonic Dances from West Side Story: No. 8, Rumble
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Bernstein: Symphonic Dances from West Side Story: No. 8, Rumble
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Bernstein: Symphonic Dances from West Side Story: No. 9, Finale
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Bernstein: Symphonic Dances from West Side Story: No. 9, Finale
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Wagner: Parsifal, Act 2: Prelude
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Wagner: Parsifal, Act 2: Prelude
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Wagner: Parsifal, Act 3: Prelude
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Wagner: Parsifal, Act 3: Prelude
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Wagner: Die Walküre, Act 2: Prelude
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  date published: 2026-07-07T16:07:00Z
audio: Wagner: Die Walküre, Act 2: Prelude
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Berlioz: Symphonie fantastique, Op. 14, H 48: II. Un bal. Valse
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Berlioz: Symphonie fantastique, Op. 14, H 48: II. Un bal. Valse
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    value: 0.947
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.829
  additional property: Liveness
    type: PropertyValue
    value: 0.088
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.177
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.033
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
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Mozart: Le nozze di Figaro, K. 492: Overture
type: MusicRecording
duration: PT4M19S
duration ms: 259426
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Daniel Barenboim
by artist: Berliner Philharmoniker
in album: Daniel Barenboim - The Conductor
  type: MusicAlbum
  date published: 2025-01-16
genre: classical
genre: classical-era
isrc code: FRZ209000499
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209000499
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bbdef51774c330e2e23a3616aa9735c6a0bda352904c36a059bd938be4869a3. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209000499.
  date published: 2026-07-08T03:22:41Z
audio: Mozart: Le nozze di Figaro, K. 492: Overture
  type: AudioObject
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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
    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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Ravel: Pavane pour une infante défunte, M. 19
type: MusicRecording
duration: PT6M8S
duration ms: 368133
explicit: false
by artist: Maurice Ravel
by artist: Daniel Barenboim
by artist: Chicago Symphony Orchestra
in album: Daniel Barenboim - The Conductor
  type: MusicAlbum
  date published: 2025-01-16
genre: classical
genre: impressionism
genre: neoclassicism
genre: post-romantic-era
isrc code: FRZ209108700
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209108700
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43c569e9159edc647e4cab89789b06b12263976630efcc144cd4900bd6c58f40. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209108700.
  date published: 2026-07-08T03:22:41Z
audio: Ravel: Pavane pour une infante défunte, M. 19
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 122.004
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.153
  additional property: Energy
    type: PropertyValue
    value: 0.048
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.98
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.963
  additional property: Liveness
    type: PropertyValue
    value: 0.16
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.041
  additional property: Loudness (dB)
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  additional property: Key Name
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Wagner: Die Walküre, Act 3: The Ride of the Valkyries
type: MusicRecording
duration: PT5M22S
duration ms: 322053
explicit: false
by artist: Richard Wagner
by artist: Daniel Barenboim
by artist: Chicago Symphony Orchestra
in album: Daniel Barenboim - The Conductor
  type: MusicAlbum
  date published: 2025-01-16
genre: classical
genre: opera
isrc code: FRZ209115900
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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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/FRZ209115900
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T18:39:05Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a053a5773d53b40e1d2eb30f8d0afc57081a93e9ed12456b8920981fcfbfbcc. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FRZ209115900.
  date published: 2026-07-07T18:39:05Z
audio: Wagner: Die Walküre, Act 3: The Ride of the Valkyries
  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
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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: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Mozart: Così fan tutte, K. 588: Overture
type: MusicRecording
duration: PT4M36S
duration ms: 276333
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Daniel Barenboim
by artist: Berliner Philharmoniker
in album: Daniel Barenboim - The Conductor
  type: MusicAlbum
  date published: 2025-01-16
genre: classical
genre: classical-era
isrc code: FRZ209009201
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T20:36:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb1f203961a344c51545ae4189586c0b612f86f5fe86b90e09bf60602862e4525
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209009201
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1f203961a344c51545ae4189586c0b612f86f5fe86b90e09bf60602862e4525. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209009201.
  date published: 2026-07-08T08:56:20Z
audio: Mozart: Così fan tutte, K. 588: Overture
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 142.647
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.339
  additional property: Energy
    type: PropertyValue
    value: 0.043
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.954
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.847
  additional property: Liveness
    type: PropertyValue
    value: 0.11
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.342
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.34
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
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Mozart: Requiem in D Minor, K. 626: I. Introitus
type: MusicRecording
duration: PT5M22S
duration ms: 322840
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Daniel Barenboim
by artist: John Alldis Choir
by artist: Sheila Armstrong
by artist: English Chamber Orchestra
in album: Daniel Barenboim - The Conductor
  type: MusicAlbum
  date published: 2025-01-16
genre: classical
genre: classical-era
isrc code: GBAYC0801422
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T02:05:08+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x98de377e2c19b6a0280c69f6267057cf8edebf81dc885d5cb7488d607dedd878
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0801422
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98de377e2c19b6a0280c69f6267057cf8edebf81dc885d5cb7488d607dedd878. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0801422.
  date published: 2026-07-08T03:22:41Z
audio: Mozart: Requiem in D Minor, K. 626: I. Introitus
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.14
  additional property: Energy
    type: PropertyValue
    value: 0.224
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.95
  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.067
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.716
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
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Mozart: Requiem in D Minor, K. 626: II. Kyrie
type: MusicRecording
duration: PT2M53S
duration ms: 173773
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Daniel Barenboim
by artist: John Alldis Choir
by artist: English Chamber Orchestra
in album: Daniel Barenboim - The Conductor
  type: MusicAlbum
  date published: 2025-01-16
genre: classical
genre: classical-era
isrc code: GBAYC0801423
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T06:12:47+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0d4b1dbdeed5c8f3050fe5a609d85b42d53f56ec69ee889ed76f311a4492b309
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0801423
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d4b1dbdeed5c8f3050fe5a609d85b42d53f56ec69ee889ed76f311a4492b309. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0801423.
  date published: 2026-07-08T03:53:27Z
audio: Mozart: Requiem in D Minor, K. 626: II. Kyrie
  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
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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: Instrumentalness
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Mozart: Requiem in D Minor, K. 626: VIII. Lacrimosa
type: MusicRecording
duration: PT3M18S
duration ms: 198586
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Daniel Barenboim
by artist: John Alldis Choir
by artist: English Chamber Orchestra
in album: Daniel Barenboim - The Conductor
  type: MusicAlbum
  date published: 2025-01-16
genre: classical
genre: classical-era
isrc code: GBAYC0801430
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T06:09:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a77667e376f402d6a6eb1664b7941d5e24effae27f5c6defc1fff703c750381. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0801430.
  date published: 2026-07-08T08:56:20Z
audio: Mozart: Requiem in D Minor, K. 626: VIII. Lacrimosa
  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
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  additional property: Danceability
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  additional property: Energy
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    value: 0.128
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.957
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.955
  additional property: Liveness
    type: PropertyValue
    value: 0.045
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.041
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.992
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
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Mozart: Requiem in D Minor, K. 626: X. Hostias
type: MusicRecording
duration: PT5M23S
duration ms: 323253
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Daniel Barenboim
by artist: John Alldis Choir
by artist: English Chamber Orchestra
in album: Daniel Barenboim - The Conductor
  type: MusicAlbum
  date published: 2025-01-16
genre: classical
genre: classical-era
isrc code: GBAYC0801433
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T16:51:29+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa627b9ef8116df93560eaa4adc070b6669e13fbb3ba73559fb60547124bd718b
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/GBAYC0801433
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa627b9ef8116df93560eaa4adc070b6669e13fbb3ba73559fb60547124bd718b. 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/GBAYC0801433.
  date published: 2026-07-08T03:20:19Z
audio: Mozart: Requiem in D Minor, K. 626: X. Hostias
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.02
  additional property: Musical Key
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    value: 10
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.088
  additional property: Energy
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    value: 0.131
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.948
  additional property: Instrumentalness
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.048
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.854
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
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Mozart: Requiem in D Minor, K. 626: XIII. Agnus Dei
type: MusicRecording
duration: PT3M33S
duration ms: 213586
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Daniel Barenboim
by artist: John Alldis Choir
by artist: English Chamber Orchestra
in album: Daniel Barenboim - The Conductor
  type: MusicAlbum
  date published: 2025-01-16
genre: classical
genre: classical-era
isrc code: GBAYC0801436
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T06:43:21+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7c6c99c6ead12fc25e2a3fc8bdd37a4e9f6289cff78a9091d8fd6dfe3cf4810e
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0801436
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c6c99c6ead12fc25e2a3fc8bdd37a4e9f6289cff78a9091d8fd6dfe3cf4810e. 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/GBAYC0801436.
  date published: 2026-07-08T03:20:19Z
audio: Mozart: Requiem in D Minor, K. 626: XIII. Agnus Dei
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 110.946
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.175
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.944
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.701
  additional property: Liveness
    type: PropertyValue
    value: 0.101
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.037
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.806
  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Mozart: Requiem in D Minor, K. 626: XIV. Communio
type: MusicRecording
duration: PT6M24S
duration ms: 384333
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Daniel Barenboim
by artist: John Alldis Choir
by artist: Sheila Armstrong
by artist: English Chamber Orchestra
in album: Daniel Barenboim - The Conductor
  type: MusicAlbum
  date published: 2025-01-16
genre: classical
genre: classical-era
isrc code: GBAYC0801437
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T06:44:39+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xeb90558c8ead9f5e503205f19d0e702276e37ee720e1f1b09366b05d3d3ff4ad
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/GBAYC0801437
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb90558c8ead9f5e503205f19d0e702276e37ee720e1f1b09366b05d3d3ff4ad. 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/GBAYC0801437.
  date published: 2026-07-08T03:20:19Z
audio: Mozart: Requiem in D Minor, K. 626: XIV. Communio
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.165
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.124
  additional property: Energy
    type: PropertyValue
    value: 0.36
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.963
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.734
  additional property: Liveness
    type: PropertyValue
    value: 0.063
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.14
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.376
  additional property: Key Name
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    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Zemlinsky: Lyric Symphony
type: MusicAlbum
date published: 2015-08-01
track: Lyrische Symphonie, Op. 18: 1. Langsam
  type: MusicRecording
  duration: PT10M37S
  duration ms: 637466
  explicit: false
  by artist: Alexander von Zemlinsky
  by artist: Håkan Hagegård
  by artist: Royal Concertgebouw Orchestra
  by artist: Riccardo Chailly
  in album: Zemlinsky: Lyric Symphony
    type: MusicAlbum
    date published: 2015-08-01
  genre: dark-cabaret
  isrc code: GBF079310741
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T11:10:19+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa52c4035ecca1762f1e0969968102a60b518daf2db5a5e12b373f669c099f6d1
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957124
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957124
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF079310741
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:53:27Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa52c4035ecca1762f1e0969968102a60b518daf2db5a5e12b373f669c099f6d1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF079310741.
    date published: 2026-07-08T03:53:27Z
  audio: Lyrische Symphonie, Op. 18: 1. Langsam
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 113.528
    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: 0.164
    additional property: Energy
      type: PropertyValue
      value: 0.198
    additional property: Speechiness
      type: PropertyValue
      value: 0.04
    additional property: Acousticness
      type: PropertyValue
      value: 0.939
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.692
    additional property: Liveness
      type: PropertyValue
      value: 0.099
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.051
    additional property: Loudness (dB)
      type: PropertyValue
      value: -22.344
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major

Strauss, R.: Elektra
type: MusicAlbum
date published: 1997-01-01
track: Elektra, Op. 58: "Allein! Weh, ganz allein."
  type: MusicRecording
  duration: PT9M30S
  duration ms: 570733
  explicit: false
  by artist: Richard Strauss
  by artist: Alessandra Marc
  by artist: Wiener Philharmoniker
  by artist: Giuseppe Sinopoli
  in album: Strauss, R.: Elektra
    type: MusicAlbum
    date published: 1997-01-01
  genre: classical
  genre: opera
  genre: orchestra
  isrc code: DEF059531602
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T23:17:25+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x7ed3a0a3962b8be9be1c7e1b0d547be182af62fd3df9d3a372e1561373700d93
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059531602
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed3a0a3962b8be9be1c7e1b0d547be182af62fd3df9d3a372e1561373700d93. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059531602.
    date published: 2026-07-08T03:22:41Z
  audio: Elektra, Op. 58: "Allein! Weh, ganz allein."
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 117.63
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.281
    additional property: Energy
      type: PropertyValue
      value: 0.216
    additional property: Speechiness
      type: PropertyValue
      value: 0.044
    additional property: Acousticness
      type: PropertyValue
      value: 0.96
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.001
    additional property: Liveness
      type: PropertyValue
      value: 0.667
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.04
    additional property: Loudness (dB)
      type: PropertyValue
      value: -18.152
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Elektra, Op. 58: "Was willst du? Seht doch dort!"
  type: MusicRecording
  duration: PT10M43S
  duration ms: 643906
  explicit: false
  by artist: Richard Strauss
  by artist: Hanna Schwarz
  by artist: Alessandra Marc
  by artist: Christiane Hossfeld
  by artist: Karin Wieser
  by artist: Wiener Philharmoniker
  by artist: Giuseppe Sinopoli
  in album: Strauss, R.: Elektra
    type: MusicAlbum
    date published: 1997-01-01
  genre: classical
  genre: opera
  genre: orchestra
  isrc code: DEF059531604
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T05:38:50+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9cfcb0e3f0a21734dbfa50f40114e98d6a9692fb76fca420842874ffcbbbb681
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059531604
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cfcb0e3f0a21734dbfa50f40114e98d6a9692fb76fca420842874ffcbbbb681. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059531604.
    date published: 2026-07-08T03:22:41Z
  audio: Elektra, Op. 58: "Was willst du? Seht doch dort!"
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 102.824
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.262
    additional property: Energy
      type: PropertyValue
      value: 0.13
    additional property: Speechiness
      type: PropertyValue
      value: 0.05
    additional property: Acousticness
      type: PropertyValue
      value: 0.941
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.002
    additional property: Liveness
      type: PropertyValue
      value: 0.119
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.062
    additional property: Loudness (dB)
      type: PropertyValue
      value: -24.364
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
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Zemlinsky: Lyric Symphony; Sinfonische Gesänge
type: MusicAlbum
date published: 1994-11-24
track: Lyrische Symphonie, Op. 18: 1. Langsam
  type: MusicRecording
  duration: PT10M38S
  duration ms: 638333
  explicit: false
  by artist: Alexander von Zemlinsky
  by artist: Håkan Hagegård
  by artist: Royal Concertgebouw Orchestra
  by artist: Riccardo Chailly
  in album: Zemlinsky: Lyric Symphony; Sinfonische Gesänge
    type: MusicAlbum
    date published: 1994-11-24
  genre: dark-cabaret
  isrc code: GBF079310741
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T11:10:19+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa52c4035ecca1762f1e0969968102a60b518daf2db5a5e12b373f669c099f6d1
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF079310741
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
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Verdi : Messa da Requiem (Elatus)
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Marc, Alessandra: Arias (Opera Gala) -Bellini, V. / Donizetti, G. / Hofmannsthal, H. / Barber, S. / Puccini, G.
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Marc, Alessandra: Arias - Verdi, G. / Catalani, A. / Cilea, F. / Puccini, G. / Charpentier, G. / Wagner, R.
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Wagner: Orchestral Excerpts, Vol. 2
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Expressionism
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Barenboim & Chicago Symphony Orchestra - The Erato-Teldec Recordings, Vol.3
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Classical Music for Peace
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