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track: Izhe Kheruvimi (Cherubic Hymn): No. 7. —
track: Sacred Concerto No. 15, "Priidite, vospoim lyudiye" (Come, let us praise in song, O people): II. Adagio
track: Sacred Concerto No. 21, "Zhiviy v pomoshchi Vishniaho" (He that dwelleth in the help of the Most High): IV. Allegro moderato
track: Sacred Concerto No. 6, "Slava vo vishnikh Bohu" (Glory to God in the highest): III. Andante
track: Sacred Concerto No. 15, "Priidite, vospoim lyudiye" (Come, let us praise in song, O people): I. Allegro maestoso
track: Sacred Concerto No. 15, "Priidite, vospoim lyudiye" (Come, let us praise in song, O people): III. Allegro moderato
track: Sacred Concerto No. 21, "Zhiviy v pomoshchi Vishniaho" (He that dwelleth in the help of the Most High): I. Largo
track: Sacred Concerto No. 21, "Zhiviy v pomoshchi Vishniaho" (He that dwelleth in the help of the Most High): II. Allegro maestoso
track: Sacred Concerto No. 21, "Zhiviy v pomoshchi Vishniaho" (He that dwelleth in the help of the Most High): III. Adagio
track: Sacred Concerto No. 1, "Vospoyte Hospodevi piesn' novu" (O sing to the Lord a new song): I. Allegro - Maestoso
track: Sacred Concerto No. 1, "Vospoyte Hospodevi piesn' novu" (O sing to the Lord a new song): II. Andante con moto - Largo
track: Sacred Concerto No. 1, "Vospoyte Hospodevi piesn' novu" (O sing to the Lord a new song): III. Allegro moderato
track: Sacred Concerto No. 27, "Hlasom moim ko Hospodu vozzvakh" (With my voice unto the Lord have I cried): I. Adagio
track: Sacred Concerto No. 27, "Hlasom moim ko Hospodu vozzvakh" (With my voice unto the Lord have I cried): II. Allegretto vivace
track: Sacred Concerto No. 27, "Hlasom moim ko Hospodu vozzvakh" (With my voice unto the Lord have I cried): III. Larghetto
track: Sacred Concerto No. 27, "Hlasom moim ko Hospodu vozzvakh" (With my voice unto the Lord have I cried): IV. Allegro moderato
track: Sacred Concerto No. 6, "Slava vo vishnikh Bohu" (Glory to God in the highest): II. Adagio

Izhe Kheruvimi (Cherubic Hymn): No. 7. —
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by artist: Ensemble Cherubim
by artist: Marika Kuzma
in album: Bortniansky: I cried out to the Lord: Hymns and Choral Concertos
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  date published: 2013-06-04
isrc code: HKI191253001
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  date published: 2026-06-13T15:41:10Z
audio: Izhe Kheruvimi (Cherubic Hymn): No. 7. —
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Sacred Concerto No. 15, "Priidite, vospoim lyudiye" (Come, let us praise in song, O people): II. Adagio
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  date published: 2026-06-13T17:25:41Z
audio: Sacred Concerto No. 15, "Priidite, vospoim lyudiye" (Come, let us praise in song, O people): II. Adagio
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Sacred Concerto No. 21, "Zhiviy v pomoshchi Vishniaho" (He that dwelleth in the help of the Most High): IV. Allegro moderato
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duration: PT1M30S
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by artist: Ensemble Cherubim
by artist: Marika Kuzma
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  date published: 2026-07-08T03:53:27Z
audio: Sacred Concerto No. 21, "Zhiviy v pomoshchi Vishniaho" (He that dwelleth in the help of the Most High): IV. Allegro moderato
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Sacred Concerto No. 6, "Slava vo vishnikh Bohu" (Glory to God in the highest): III. Andante
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  date published: 2026-07-08T08:56:20Z
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Sacred Concerto No. 15, "Priidite, vospoim lyudiye" (Come, let us praise in song, O people): I. Allegro maestoso
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  date published: 2026-07-30T12:45:34Z
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  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

Sacred Concerto No. 15, "Priidite, vospoim lyudiye" (Come, let us praise in song, O people): III. Allegro moderato
type: MusicRecording
duration: PT1M16S
duration ms: 76733
explicit: false
by artist: Dmitry Bortniansky
by artist: Ensemble Cherubim
by artist: Marika Kuzma
in album: Bortniansky: I cried out to the Lord: Hymns and Choral Concertos
  type: MusicAlbum
  date published: 2013-06-04
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc6cf7e8c7b9ea5ed69a7b1d73eb79f62d6fa35cad8a19d6bf69d0476b997e22. 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/HKI191253004.
  date published: 2026-07-30T16:01:17Z
audio: Sacred Concerto No. 15, "Priidite, vospoim lyudiye" (Come, let us praise in song, O people): III. Allegro moderato
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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isrc code: HKI191253004
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T16:01:17+00:00
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

Sacred Concerto No. 21, "Zhiviy v pomoshchi Vishniaho" (He that dwelleth in the help of the Most High): I. Largo
type: MusicRecording
duration: PT2M18S
duration ms: 138773
explicit: false
by artist: Dmitry Bortniansky
by artist: Ensemble Cherubim
by artist: Marika Kuzma
in album: Bortniansky: I cried out to the Lord: Hymns and Choral Concertos
  type: MusicAlbum
  date published: 2013-06-04
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97da0d110c856a3864a282325c15139be618f033a186330d2aa49c722409e89b. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/HKI191253005.
  date published: 2026-07-30T17:23:26Z
audio: Sacred Concerto No. 21, "Zhiviy v pomoshchi Vishniaho" (He that dwelleth in the help of the Most High): I. Largo
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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isrc code: HKI191253005
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T17:23:26+00:00
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

Sacred Concerto No. 21, "Zhiviy v pomoshchi Vishniaho" (He that dwelleth in the help of the Most High): II. Allegro maestoso
type: MusicRecording
duration: PT1M23S
duration ms: 83426
explicit: false
by artist: Dmitry Bortniansky
by artist: Ensemble Cherubim
by artist: Marika Kuzma
in album: Bortniansky: I cried out to the Lord: Hymns and Choral Concertos
  type: MusicAlbum
  date published: 2013-06-04
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0578d2e049514ea2340acd68d200eaff8ab8e475273cf13d28bd1c6a2e1bd358. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/HKI191253006.
  date published: 2026-07-30T15:42:38Z
audio: Sacred Concerto No. 21, "Zhiviy v pomoshchi Vishniaho" (He that dwelleth in the help of the Most High): II. Allegro maestoso
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: 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: Valence (Positivity)
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  additional property: Loudness (dB)
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isrc code: HKI191253006
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: OTSVerificationAPI
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T15:42:38+00:00
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

Sacred Concerto No. 21, "Zhiviy v pomoshchi Vishniaho" (He that dwelleth in the help of the Most High): III. Adagio
type: MusicRecording
duration: PT2M1S
duration ms: 121360
explicit: false
by artist: Dmitry Bortniansky
by artist: Ensemble Cherubim
by artist: Marika Kuzma
in album: Bortniansky: I cried out to the Lord: Hymns and Choral Concertos
  type: MusicAlbum
  date published: 2013-06-04
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9712de247bd829f1aab0aecc6022217854b34992f2b97545bac50af34c1722ed. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/HKI191253007.
  date published: 2026-07-30T09:37:10Z
audio: Sacred Concerto No. 21, "Zhiviy v pomoshchi Vishniaho" (He that dwelleth in the help of the Most High): III. Adagio
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 118.758
  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
    value: 0.147
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
    type: PropertyValue
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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)
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isrc code: HKI191253007
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: ContentHash
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additional property: OTSVerificationAPI
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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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

Sacred Concerto No. 1, "Vospoyte Hospodevi piesn' novu" (O sing to the Lord a new song): I. Allegro - Maestoso
type: MusicRecording
duration: PT2M2S
duration ms: 122880
explicit: false
by artist: Dmitry Bortniansky
by artist: Ensemble Cherubim
by artist: Marika Kuzma
in album: Bortniansky: I cried out to the Lord: Hymns and Choral Concertos
  type: MusicAlbum
  date published: 2013-06-04
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x174fc2904b9c6dd369259d168c4d6304ca1829c5603404201643b23562268d3c. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/HKI191253009.
  date published: 2026-07-30T17:23:26Z
audio: Sacred Concerto No. 1, "Vospoyte Hospodevi piesn' novu" (O sing to the Lord a new song): I. Allegro - Maestoso
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 102.187
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.241
  additional property: Energy
    type: PropertyValue
    value: 0.067
  additional property: Speechiness
    type: PropertyValue
    value: 0.053
  additional property: Acousticness
    type: PropertyValue
    value: 0.989
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.344
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.071
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.456
  additional property: Key Name
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    value: Bb
  additional property: Mode Name
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    value: Major
isrc code: HKI191253009
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T17:23:26+00:00
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

Sacred Concerto No. 1, "Vospoyte Hospodevi piesn' novu" (O sing to the Lord a new song): II. Andante con moto - Largo
type: MusicRecording
duration: PT2M0S
duration ms: 120680
explicit: false
by artist: Dmitry Bortniansky
by artist: Ensemble Cherubim
by artist: Marika Kuzma
in album: Bortniansky: I cried out to the Lord: Hymns and Choral Concertos
  type: MusicAlbum
  date published: 2013-06-04
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f1a7457b214231ae0445fbd3f6c9e95cb2132cdb05f18dd8a369df19f194c99. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191253010.
  date published: 2026-07-31T05:17:02Z
audio: Sacred Concerto No. 1, "Vospoyte Hospodevi piesn' novu" (O sing to the Lord a new song): II. Andante con moto - Largo
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
    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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isrc code: HKI191253010
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T05:17:02+00:00
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

Sacred Concerto No. 1, "Vospoyte Hospodevi piesn' novu" (O sing to the Lord a new song): III. Allegro moderato
type: MusicRecording
duration: PT1M27S
duration ms: 87893
explicit: false
by artist: Dmitry Bortniansky
by artist: Ensemble Cherubim
by artist: Marika Kuzma
in album: Bortniansky: I cried out to the Lord: Hymns and Choral Concertos
  type: MusicAlbum
  date published: 2013-06-04
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e5cb46b3358cb8a860eb039bdcc2649ff1c87473dfce1161ce6918b5dea6e4f. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191253011.
  date published: 2026-07-31T02:19:15Z
audio: Sacred Concerto No. 1, "Vospoyte Hospodevi piesn' novu" (O sing to the Lord a new song): III. Allegro moderato
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 97.764
  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
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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

Sacred Concerto No. 27, "Hlasom moim ko Hospodu vozzvakh" (With my voice unto the Lord have I cried): I. Adagio
type: MusicRecording
duration: PT3M12S
duration ms: 192560
explicit: false
by artist: Dmitry Bortniansky
by artist: Ensemble Cherubim
by artist: Marika Kuzma
in album: Bortniansky: I cried out to the Lord: Hymns and Choral Concertos
  type: MusicAlbum
  date published: 2013-06-04
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82b35dafff03d2ec90869ee91028e30c6867820d24e825bb4e68c011fb1b4843. Chain 2 (Bitcoin): anchored in block 960277 (2026-07-30T16:10:47Z), 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/HKI191253012.
  date published: 2026-07-30T16:10:47Z
audio: Sacred Concerto No. 27, "Hlasom moim ko Hospodu vozzvakh" (With my voice unto the Lord have I cried): I. Adagio
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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

Sacred Concerto No. 27, "Hlasom moim ko Hospodu vozzvakh" (With my voice unto the Lord have I cried): II. Allegretto vivace
type: MusicRecording
duration: PT1M45S
duration ms: 105706
explicit: false
by artist: Dmitry Bortniansky
by artist: Ensemble Cherubim
by artist: Marika Kuzma
in album: Bortniansky: I cried out to the Lord: Hymns and Choral Concertos
  type: MusicAlbum
  date published: 2013-06-04
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaed5217a938b63be3595e3acb34060768215b9c7b8ceb97ab5fc25a85a5e5f6. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191253013.
  date published: 2026-07-31T05:48:18Z
audio: Sacred Concerto No. 27, "Hlasom moim ko Hospodu vozzvakh" (With my voice unto the Lord have I cried): II. Allegretto vivace
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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

Sacred Concerto No. 27, "Hlasom moim ko Hospodu vozzvakh" (With my voice unto the Lord have I cried): III. Larghetto
type: MusicRecording
duration: PT1M29S
duration ms: 89946
explicit: false
by artist: Dmitry Bortniansky
by artist: Ensemble Cherubim
by artist: Marika Kuzma
in album: Bortniansky: I cried out to the Lord: Hymns and Choral Concertos
  type: MusicAlbum
  date published: 2013-06-04
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6050c0c835079ff7a3e8636b444c9206cadde7484a76992ac0b5b3d0a4ed8b73. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191253014.
  date published: 2026-07-31T02:19:15Z
audio: Sacred Concerto No. 27, "Hlasom moim ko Hospodu vozzvakh" (With my voice unto the Lord have I cried): III. Larghetto
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  additional property: Tempo (BPM)
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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

Sacred Concerto No. 27, "Hlasom moim ko Hospodu vozzvakh" (With my voice unto the Lord have I cried): IV. Allegro moderato
type: MusicRecording
duration: PT2M22S
duration ms: 142360
explicit: false
by artist: Dmitry Bortniansky
by artist: Ensemble Cherubim
by artist: Marika Kuzma
in album: Bortniansky: I cried out to the Lord: Hymns and Choral Concertos
  type: MusicAlbum
  date published: 2013-06-04
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d077200a54bff75c4d8cb9d70d10b6f7c192cb71cafbff2cee8d3919779473. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/HKI191253015.
  date published: 2026-07-31T04:14:58Z
audio: Sacred Concerto No. 27, "Hlasom moim ko Hospodu vozzvakh" (With my voice unto the Lord have I cried): IV. Allegro moderato
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: 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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isrc code: HKI191253015
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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

Sacred Concerto No. 6, "Slava vo vishnikh Bohu" (Glory to God in the highest): II. Adagio
type: MusicRecording
duration: PT1M41S
duration ms: 101000
explicit: false
by artist: Dmitry Bortniansky
by artist: Ensemble Cherubim
by artist: Marika Kuzma
in album: Bortniansky: I cried out to the Lord: Hymns and Choral Concertos
  type: MusicAlbum
  date published: 2013-06-04
subject of: OpenTimestamps Proof of Existence
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  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17cf4759aaa9efe76b4eb66b4763d52c87bcf43128cdd2300273a40ae2437df4. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/HKI191253017.
  date published: 2026-07-30T02:30:29Z
audio: Sacred Concerto No. 6, "Slava vo vishnikh Bohu" (Glory to God in the highest): II. Adagio
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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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isrc code: HKI191253017
additional property: CopyrightID
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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