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track: Boris Godunov: Opera in Four Acts With a Prologue: Prologue, Scene 1, Introduction
track: Boris Godunov: Opera in Four Acts With a Prologue: Prologue, Scene 1: "Who are you adandoning us to"
track: Boris Godunov: Opera in Four Acts With a Prologue: Prologue, Scene 2: "Glory!"
track: Boris Godunov: Opera in Four Acts With a Prologue: Act I, Scene 1: "Do not complain, brother"
track: Boris Godunov: Opera in Four Acts With a Prologue: Act I, Scene 1: "I arrived at night"
track: Boris Godunov: Opera in Four Acts With a Prologue: Act 1, Scene 1: "They are ringing for matins"
track: Boris Godunov: Opera in Four Acts With a Prologue: Prologue, Scene 1: "Glory to Thee, Creator on high"
track: Boris Godunov: Opera in Four Acts With a Prologue: Prologue, Scene 2, Introduction
track: Boris Godunov: Opera in Four Acts With a Prologue: Prologue, Scene 1: "True believers! The boyar is implacable."
track: Boris Godunov: Opera in Four Acts With a Prologue: Prologue, Scene 1: "Did you hear what the holy pilgrims said?"
track: Boris Godunov: Opera in Four Acts With a Prologue: Prologue, Scene 2: "Long live Tsar Boris Fyodorovich!"
track: Boris Godunov: Opera in Four Acts With a Prologue: Prologue, Scene 2: "My soul is sad"
track: Boris Godunov: Opera in Four Acts With a Prologue: Act I, Scene 1: "Just one final story"
track: Boris Godunov: Opera in Four Acts With a Prologue: Act I, Scene 1: "O Lord, strong and righteous"
track: Boris Godunov: Opera in Four Acts With a Prologue: Act I, Scene 1: "For alLong time, honoured father"
track: Boris Godunov: Opera in Four Acts With a Prologue: Act I, Scene 1: "How old was the murdered Tsarevich?"
track: Boris Godunov: Opera in Four Acts With a Prologue: Act I, Scene 2: Introduction

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by artist: Claudio Abbado
by artist: Berliner Philharmoniker
by artist: Rundfunkchor Berlin
by artist: Liliana Nichiteanu
by artist: Valentina Valente
by artist: Eugenia Gorochovskaya
by artist: Philip Langridge
by artist: Albert Shagidullin
by artist: Samuel Ramey
by artist: Sergej Larin
by artist: Marjana Lipovek
by artist: Helmut Wildhaber
by artist: Gleb Nikolsky
by artist: Elena Zaremba
by artist: Alexander Fedin
by artist: Tölz Boys' Choir
by artist: Mikhail Krutikov
by artist: Wojtek Drabowicz
in album: Mussorgsky: Boris Godunov
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  date published: 1994-05-03
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genre: late-romantic-era
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audio: Boris Godunov: Opera in Four Acts With a Prologue: Prologue, Scene 1, Introduction
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Boris Godunov: Opera in Four Acts With a Prologue: Prologue, Scene 1: "Who are you adandoning us to"
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Boris Godunov: Opera in Four Acts With a Prologue: Prologue, Scene 2: "Glory!"
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by artist: Claudio Abbado
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by artist: Slovak Philharmonic Chorus Bratislava
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by artist: Tölzer Knabenchor
by artist: Anatoly Kotcherga
by artist: Liliana Nichiteanu
by artist: Valentina Valente
by artist: Eugenia Gorochovskaya
by artist: Philip Langridge
by artist: Albert Shagidullin
by artist: Samuel Ramey
by artist: Sergej Larin
by artist: Marjana Lipovsek
by artist: Sergei Leiferkus
by artist: Helmut Wildhaber
by artist: Gleb Nikolsky
by artist: Elena Zaremba
by artist: Alexander Fedin
by artist: Mikhail Krutikov
by artist: Wojtek Drabowicz
by artist: Tölz Boys' Choir
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  date published: 1994-05-03
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genre: late-romantic-era
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Boris Godunov: Opera in Four Acts With a Prologue: Act I, Scene 1: "Do not complain, brother"
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by artist: Eugenia Gorochovskaya
by artist: Philip Langridge
by artist: Albert Shagidullin
by artist: Sergej Larin
by artist: Marjana Lipovsek
by artist: Sergei Leiferkus
by artist: Helmut Wildhaber
by artist: Gleb Nikolsky
by artist: Elena Zaremba
by artist: Alexander Fedin
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Boris Godunov: Opera in Four Acts With a Prologue: Act I, Scene 1: "I arrived at night"
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by artist: Marjana Lipovsek
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  value: https://explorer.copyrightchains.com/tx/0xa22b97f46c77f8b9aad09900d908cda49e9a2a97744c337bd95bf4565b669a73
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/USSM10405466
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa22b97f46c77f8b9aad09900d908cda49e9a2a97744c337bd95bf4565b669a73. 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/USSM10405466.
  date published: 2026-07-08T03:20:19Z
audio: Boris Godunov: Opera in Four Acts With a Prologue: Act I, Scene 1: "I arrived at night"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 109.981
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.273
  additional property: Energy
    type: PropertyValue
    value: 0.126
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.97
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.03
  additional property: Liveness
    type: PropertyValue
    value: 0.169
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.138
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.117
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Boris Godunov: Opera in Four Acts With a Prologue: Act 1, Scene 1: "They are ringing for matins"
type: MusicRecording
duration: PT3M8S
duration ms: 188933
explicit: false
by artist: Modest Mussorgsky
by artist: Claudio Abbado
by artist: Berliner Philharmoniker
by artist: Samuel Ramey
by artist: Sergej Larin
by artist: Slovak Philharmonic Chorus Bratislava
by artist: Rundfunkchor Berlin
by artist: Tölzer Knabenchor
by artist: Anatoly Kotcherga
by artist: Liliana Nichiteanu
by artist: Valentina Valente
by artist: Eugenia Gorochovskaya
by artist: Philip Langridge
by artist: Albert Shagidullin
by artist: Marjana Lipovsek
by artist: Sergei Leiferkus
by artist: Helmut Wildhaber
by artist: Gleb Nikolsky
by artist: Elena Zaremba
by artist: Alexander Fedin
by artist: Mikhail Krutikov
by artist: Wojtek Drabowicz
by artist: Tölz Boys' Choir
in album: Mussorgsky: Boris Godunov
  type: MusicAlbum
  date published: 1994-05-03
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: USSM10405468
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T22:03:32+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xba24dcbf6acac96bb7500aa5c1dc7e34175fe03f9b69185ffe1b308139391a13
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/USSM10405468
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba24dcbf6acac96bb7500aa5c1dc7e34175fe03f9b69185ffe1b308139391a13. 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/USSM10405468.
  date published: 2026-07-08T03:53:27Z
audio: Boris Godunov: Opera in Four Acts With a Prologue: Act 1, Scene 1: "They are ringing for matins"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 142.796
  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: 0.177
  additional property: Energy
    type: PropertyValue
    value: 0.005
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.877
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.104
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.115
  additional property: Loudness (dB)
    type: PropertyValue
    value: -38.391
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Boris Godunov: Opera in Four Acts With a Prologue: Prologue, Scene 1: "Glory to Thee, Creator on high"
type: MusicRecording
duration: PT3M35S
duration ms: 215840
explicit: false
by artist: Modest Mussorgsky
by artist: Claudio Abbado
by artist: Berliner Philharmoniker
by artist: Slovak Philharmonic Chorus Bratislava
by artist: Rundfunkchor Berlin
by artist: Tölzer Knabenchor
by artist: Liliana Nichiteanu
by artist: Valentina Valente
by artist: Eugenia Gorochovskaya
by artist: Philip Langridge
by artist: Albert Shagidullin
by artist: Samuel Ramey
by artist: Sergej Larin
by artist: Marjana Lipovek
by artist: Wojtek Drabowicz
by artist: Helmut Wildhaber
by artist: Gleb Nikolsky
by artist: Elena Zaremba
by artist: Alexander Fedin
by artist: Mikhail Krutikov
by artist: Tölz Boys' Choir
in album: Mussorgsky: Boris Godunov
  type: MusicAlbum
  date published: 1994-05-03
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c4ba6678c79a3e83bdc82dd803820bcb483341e7be4ca9415f9ca7fdda5128. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:52:50Z), 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/USSM10205334.
  date published: 2026-07-22T14:52:50Z
audio: Boris Godunov: Opera in Four Acts With a Prologue: Prologue, Scene 1: "Glory to Thee, Creator on high"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 99.938
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.16
  additional property: Energy
    type: PropertyValue
    value: 0.012
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.969
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.685
  additional property: Liveness
    type: PropertyValue
    value: 0.115
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.04
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.231
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: USSM10205334
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 959128
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-22T12:33:25+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10205334
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 959128
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/959128
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-22T12:33:25+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

Boris Godunov: Opera in Four Acts With a Prologue: Prologue, Scene 2, Introduction
type: MusicRecording
duration: PT1M53S
duration ms: 113106
explicit: false
by artist: Modest Mussorgsky
by artist: Claudio Abbado
by artist: Berliner Philharmoniker
by artist: Anatoly Kotcherga
by artist: Liliana Nichiteanu
by artist: Valentina Valente
by artist: Eugenia Gorochovskaya
by artist: Philip Langridge
by artist: Albert Shagidullin
by artist: Samuel Ramey
by artist: Sergej Larin
by artist: Marjana Lipovsek
by artist: Sergei Leiferkus
by artist: Helmut Wildhaber
by artist: Gleb Nikolsky
by artist: Elena Zaremba
by artist: Alexander Fedin
by artist: Slovak Philharmonic Chorus Bratislava
by artist: Rundfunkchor Berlin
by artist: Mikhail Krutikov
by artist: Wojtek Drabowicz
by artist: Tölz Boys' Choir
in album: Mussorgsky: Boris Godunov
  type: MusicAlbum
  date published: 1994-05-03
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bb13918f6813d8728c7258fbc07951bbb71264617611da19a8c5eceab5c1ab1. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:39:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10405457.
  date published: 2026-07-22T20:39:49Z
audio: Boris Godunov: Opera in Four Acts With a Prologue: Prologue, Scene 2, Introduction
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 128.009
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.289
  additional property: Energy
    type: PropertyValue
    value: 0.299
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.932
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.883
  additional property: Liveness
    type: PropertyValue
    value: 0.662
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.068
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.209
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: USSM10405457
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 959159
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-22T17:48:40+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10405457
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 959159
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/959159
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-22T17:48:40+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

Boris Godunov: Opera in Four Acts With a Prologue: Prologue, Scene 1: "Who are you adandoning us to"
type: MusicRecording
duration: PT1M26S
duration ms: 86440
explicit: false
by artist: Modest Mussorgsky
by artist: Claudio Abbado
by artist: Berliner Philharmoniker
by artist: Slovak Philharmonic Chorus Bratislava
by artist: Rundfunkchor Berlin
by artist: Tölzer Knabenchor
by artist: Mikhail Krutikov
by artist: Liliana Nichiteanu
by artist: Valentina Valente
by artist: Eugenia Gorochovskaya
by artist: Philip Langridge
by artist: Albert Shagidullin
by artist: Samuel Ramey
by artist: Sergej Larin
by artist: Marjana Lipovek
by artist: Helmut Wildhaber
by artist: Gleb Nikolsky
by artist: Elena Zaremba
by artist: Alexander Fedin
by artist: Wojtek Drabowicz
by artist: Tölz Boys' Choir
in album: Mussorgsky: Boris Godunov
  type: MusicAlbum
  date published: 1994-05-03
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06501f62ff990e14e5e728814806bb1417c25d7ebe101deee904737a49e7ee88. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/USSM10205330.
  date published: 2026-07-29T13:09:35Z
audio: Boris Godunov: Opera in Four Acts With a Prologue: Prologue, Scene 1: "Who are you adandoning us to"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.223
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.22
  additional property: Energy
    type: PropertyValue
    value: 0.15
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.956
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.116
  additional property: Liveness
    type: PropertyValue
    value: 0.177
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.059
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.683
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: USSM10205330
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960108
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-29T13:09:35+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10205330
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960108
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960108
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T13:09:35+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

Boris Godunov: Opera in Four Acts With a Prologue: Prologue, Scene 1: "True believers! The boyar is implacable."
type: MusicRecording
duration: PT2M42S
duration ms: 162026
explicit: false
by artist: Modest Mussorgsky
by artist: Claudio Abbado
by artist: Berliner Philharmoniker
by artist: Albert Shagidullin
by artist: Liliana Nichiteanu
by artist: Valentina Valente
by artist: Eugenia Gorochovskaya
by artist: Philip Langridge
by artist: Samuel Ramey
by artist: Sergej Larin
by artist: Marjana Lipovek
by artist: Helmut Wildhaber
by artist: Gleb Nikolsky
by artist: Elena Zaremba
by artist: Alexander Fedin
by artist: Rundfunkchor Berlin
by artist: Mikhail Krutikov
by artist: Wojtek Drabowicz
by artist: Tölz Boys' Choir
in album: Mussorgsky: Boris Godunov
  type: MusicAlbum
  date published: 1994-05-03
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44dc0b7b15ac80f0830025c114b40d2a5f263c7d1abbbc44d3b6f8b150905748. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/USSM10205333.
  date published: 2026-07-29T14:28:24Z
audio: Boris Godunov: Opera in Four Acts With a Prologue: Prologue, Scene 1: "True believers! The boyar is implacable."
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.616
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.163
  additional property: Energy
    type: PropertyValue
    value: 0.044
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.969
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.003
  additional property: Liveness
    type: PropertyValue
    value: 0.091
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.057
  additional property: Loudness (dB)
    type: PropertyValue
    value: -30.463
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: USSM10205333
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960117
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-29T14:28:24+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10205333
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960117
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960117
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T14:28:24+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

Boris Godunov: Opera in Four Acts With a Prologue: Prologue, Scene 1: "Did you hear what the holy pilgrims said?"
type: MusicRecording
duration: PT3M14S
duration ms: 194160
explicit: false
by artist: Modest Mussorgsky
by artist: Claudio Abbado
by artist: Berliner Philharmoniker
by artist: Slovak Philharmonic Chorus Bratislava
by artist: Rundfunkchor Berlin
by artist: Tölzer Knabenchor
by artist: Mikhail Krutikov
by artist: Wojciech Drabowicz
by artist: Liliana Nichiteanu
by artist: Valentina Valente
by artist: Eugenia Gorochovskaya
by artist: Philip Langridge
by artist: Albert Shagidullin
by artist: Samuel Ramey
by artist: Sergej Larin
by artist: Marjana Lipovek
by artist: Helmut Wildhaber
by artist: Gleb Nikolsky
by artist: Elena Zaremba
by artist: Alexander Fedin
by artist: Tölz Boys' Choir
in album: Mussorgsky: Boris Godunov
  type: MusicAlbum
  date published: 1994-05-03
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x256b9629a7043aa292af8e103ba6e200f8ba2f22218391711362c936d6a233ad. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/USSM10205335.
  date published: 2026-07-29T15:38:18Z
audio: Boris Godunov: Opera in Four Acts With a Prologue: Prologue, Scene 1: "Did you hear what the holy pilgrims said?"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 107.016
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.173
  additional property: Energy
    type: PropertyValue
    value: 0.01
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.957
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.004
  additional property: Liveness
    type: PropertyValue
    value: 0.139
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.109
  additional property: Loudness (dB)
    type: PropertyValue
    value: -35.142
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: USSM10205335
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960125
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-29T15:38:18+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10205335
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960125
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960125
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T15:38:18+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

Boris Godunov: Opera in Four Acts With a Prologue: Prologue, Scene 2: "Long live Tsar Boris Fyodorovich!"
type: MusicRecording
duration: PT2M15S
duration ms: 135426
explicit: false
by artist: Modest Mussorgsky
by artist: Claudio Abbado
by artist: Berliner Philharmoniker
by artist: Philip Langridge
by artist: Slovak Philharmonic Chorus Bratislava
by artist: Tölzer Knabenchor
by artist: Anatoly Kotcherga
by artist: Liliana Nichiteanu
by artist: Valentina Valente
by artist: Eugenia Gorochovskaya
by artist: Albert Shagidullin
by artist: Samuel Ramey
by artist: Sergej Larin
by artist: Marjana Lipovsek
by artist: Sergei Leiferkus
by artist: Helmut Wildhaber
by artist: Gleb Nikolsky
by artist: Elena Zaremba
by artist: Alexander Fedin
by artist: Rundfunkchor Berlin
by artist: Mikhail Krutikov
by artist: Wojtek Drabowicz
by artist: Tölz Boys' Choir
in album: Mussorgsky: Boris Godunov
  type: MusicAlbum
  date published: 1994-05-03
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c28e6cf7b0413eabff482eb381f34d314b847b9404a63af9ba1179fd8c51ea0. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/USSM10405458.
  date published: 2026-07-29T11:30:20Z
audio: Boris Godunov: Opera in Four Acts With a Prologue: Prologue, Scene 2: "Long live Tsar Boris Fyodorovich!"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 139.538
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.187
  additional property: Energy
    type: PropertyValue
    value: 0.123
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.953
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.754
  additional property: Liveness
    type: PropertyValue
    value: 0.164
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.258
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.787
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: USSM10405458
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960099
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-29T11:30:20+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10405458
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960099
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960099
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T11:30:20+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

Boris Godunov: Opera in Four Acts With a Prologue: Prologue, Scene 2: "My soul is sad"
type: MusicRecording
duration: PT2M19S
duration ms: 139373
explicit: false
by artist: Modest Mussorgsky
by artist: Claudio Abbado
by artist: Berliner Philharmoniker
by artist: Anatoly Kotcherga
by artist: Liliana Nichiteanu
by artist: Valentina Valente
by artist: Eugenia Gorochovskaya
by artist: Philip Langridge
by artist: Albert Shagidullin
by artist: Samuel Ramey
by artist: Sergej Larin
by artist: Marjana Lipovsek
by artist: Sergei Leiferkus
by artist: Helmut Wildhaber
by artist: Gleb Nikolsky
by artist: Elena Zaremba
by artist: Alexander Fedin
by artist: Slovak Philharmonic Chorus Bratislava
by artist: Rundfunkchor Berlin
by artist: Mikhail Krutikov
by artist: Wojtek Drabowicz
by artist: Tölz Boys' Choir
in album: Mussorgsky: Boris Godunov
  type: MusicAlbum
  date published: 1994-05-03
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb26fe78ad2777c132bbfe0dc525822314c902601f80c75a4179de614616db4f3. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10405459.
  date published: 2026-07-29T19:35:34Z
audio: Boris Godunov: Opera in Four Acts With a Prologue: Prologue, Scene 2: "My soul is sad"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 110.202
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.225
  additional property: Energy
    type: PropertyValue
    value: 0.023
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.984
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.017
  additional property: Liveness
    type: PropertyValue
    value: 0.335
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.081
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.326
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: USSM10405459
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960138
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-29T19:35:34+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10405459
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960138
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960138
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T19:35:34+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

Boris Godunov: Opera in Four Acts With a Prologue: Act I, Scene 1: "Just one final story"
type: MusicRecording
duration: PT3M41S
duration ms: 221560
explicit: false
by artist: Modest Mussorgsky
by artist: Claudio Abbado
by artist: Berliner Philharmoniker
by artist: Samuel Ramey
by artist: Anatoly Kotcherga
by artist: Liliana Nichiteanu
by artist: Valentina Valente
by artist: Eugenia Gorochovskaya
by artist: Philip Langridge
by artist: Albert Shagidullin
by artist: Sergej Larin
by artist: Marjana Lipovsek
by artist: Sergei Leiferkus
by artist: Helmut Wildhaber
by artist: Gleb Nikolsky
by artist: Elena Zaremba
by artist: Alexander Fedin
by artist: Slovak Philharmonic Chorus Bratislava
by artist: Rundfunkchor Berlin
by artist: Mikhail Krutikov
by artist: Wojtek Drabowicz
by artist: Tölz Boys' Choir
in album: Mussorgsky: Boris Godunov
  type: MusicAlbum
  date published: 1994-05-03
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc1c501b76d9cbc0d53ee8306323203c1d85eaf4c32ed772cf3027294c19abb. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/USSM10405462.
  date published: 2026-07-30T02:05:19Z
audio: Boris Godunov: Opera in Four Acts With a Prologue: Act I, Scene 1: "Just one final story"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 107.527
  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: 0.236
  additional property: Energy
    type: PropertyValue
    value: 0.023
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.981
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.123
  additional property: Liveness
    type: PropertyValue
    value: 0.248
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.058
  additional property: Loudness (dB)
    type: PropertyValue
    value: -31.522
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: USSM10405462
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960193
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T02:05:19+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10405462
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960193
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960193
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T02:05:19+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

Boris Godunov: Opera in Four Acts With a Prologue: Act I, Scene 1: "O Lord, strong and righteous"
type: MusicRecording
duration: PT5M39S
duration ms: 339800
explicit: false
by artist: Modest Mussorgsky
by artist: Claudio Abbado
by artist: Berliner Philharmoniker
by artist: Samuel Ramey
by artist: Sergej Larin
by artist: Slovak Philharmonic Chorus Bratislava
by artist: Rundfunkchor Berlin
by artist: Tölzer Knabenchor
by artist: Anatoly Kotcherga
by artist: Liliana Nichiteanu
by artist: Valentina Valente
by artist: Eugenia Gorochovskaya
by artist: Philip Langridge
by artist: Albert Shagidullin
by artist: Marjana Lipovsek
by artist: Sergei Leiferkus
by artist: Helmut Wildhaber
by artist: Gleb Nikolsky
by artist: Elena Zaremba
by artist: Alexander Fedin
by artist: Mikhail Krutikov
by artist: Wojtek Drabowicz
by artist: Tölz Boys' Choir
in album: Mussorgsky: Boris Godunov
  type: MusicAlbum
  date published: 1994-05-03
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4e1318b1541b0e5e8c41f5323acdec7c0992be7587c53a41285e6e6284b799e. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/USSM10405463.
  date published: 2026-07-29T23:39:29Z
audio: Boris Godunov: Opera in Four Acts With a Prologue: Act I, Scene 1: "O Lord, strong and righteous"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.643
  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: 0.285
  additional property: Energy
    type: PropertyValue
    value: 0.041
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.973
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.207
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.059
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.644
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: USSM10405463
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960166
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-29T23:39:29+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10405463
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960166
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960166
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T23:39:29+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

Boris Godunov: Opera in Four Acts With a Prologue: Act I, Scene 1: "For alLong time, honoured father"
type: MusicRecording
duration: PT0M46S
duration ms: 46240
explicit: false
by artist: Modest Mussorgsky
by artist: Claudio Abbado
by artist: Berliner Philharmoniker
by artist: Samuel Ramey
by artist: Sergej Larin
by artist: Anatoly Kotcherga
by artist: Liliana Nichiteanu
by artist: Valentina Valente
by artist: Eugenia Gorochovskaya
by artist: Philip Langridge
by artist: Albert Shagidullin
by artist: Marjana Lipovsek
by artist: Sergei Leiferkus
by artist: Helmut Wildhaber
by artist: Gleb Nikolsky
by artist: Elena Zaremba
by artist: Alexander Fedin
by artist: Slovak Philharmonic Chorus Bratislava
by artist: Rundfunkchor Berlin
by artist: Mikhail Krutikov
by artist: Wojtek Drabowicz
by artist: Tölz Boys' Choir
in album: Mussorgsky: Boris Godunov
  type: MusicAlbum
  date published: 1994-05-03
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccdd7b9ce873518e5a4d5147fdc4986caacc0022700db339c1a190854b434831. 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/USSM10405465.
  date published: 2026-07-30T09:37:10Z
audio: Boris Godunov: Opera in Four Acts With a Prologue: Act I, Scene 1: "For alLong time, honoured father"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 97.481
  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: 0.43
  additional property: Energy
    type: PropertyValue
    value: 0.066
  additional property: Speechiness
    type: PropertyValue
    value: 0.053
  additional property: Acousticness
    type: PropertyValue
    value: 0.992
  additional property: Instrumentalness
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  additional property: Liveness
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    value: 0.249
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.222
  additional property: Loudness (dB)
    type: PropertyValue
    value: -31.17
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: USSM10405465
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960236
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: 2026-07-30T09:37:10+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

Boris Godunov: Opera in Four Acts With a Prologue: Act I, Scene 1: "How old was the murdered Tsarevich?"
type: MusicRecording
duration: PT2M17S
duration ms: 137266
explicit: false
by artist: Modest Mussorgsky
by artist: Claudio Abbado
by artist: Berliner Philharmoniker
by artist: Samuel Ramey
by artist: Sergej Larin
by artist: Anatoly Kotcherga
by artist: Liliana Nichiteanu
by artist: Valentina Valente
by artist: Eugenia Gorochovskaya
by artist: Philip Langridge
by artist: Albert Shagidullin
by artist: Marjana Lipovsek
by artist: Sergei Leiferkus
by artist: Helmut Wildhaber
by artist: Gleb Nikolsky
by artist: Elena Zaremba
by artist: Alexander Fedin
by artist: Slovak Philharmonic Chorus Bratislava
by artist: Rundfunkchor Berlin
by artist: Mikhail Krutikov
by artist: Wojtek Drabowicz
by artist: Tölz Boys' Choir
in album: Mussorgsky: Boris Godunov
  type: MusicAlbum
  date published: 1994-05-03
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x366868281090294139d3ab45bad3ce8ad260693e0eaabab1fe7916032a07683a. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10405467.
  date published: 2026-07-29T23:42:34Z
audio: Boris Godunov: Opera in Four Acts With a Prologue: Act I, Scene 1: "How old was the murdered Tsarevich?"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.461
  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: 0.233
  additional property: Energy
    type: PropertyValue
    value: 0.043
  additional property: Speechiness
    type: PropertyValue
    value: 0.058
  additional property: Acousticness
    type: PropertyValue
    value: 0.978
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.08
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.059
  additional property: Loudness (dB)
    type: PropertyValue
    value: -33.895
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: USSM10405467
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
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additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960167
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-29T23:42:34+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10405467
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960167
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960167
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T23:42:34+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

Boris Godunov: Opera in Four Acts With a Prologue: Act I, Scene 2: Introduction
type: MusicRecording
duration: PT0M56S
duration ms: 56706
explicit: false
by artist: Modest Mussorgsky
by artist: Claudio Abbado
by artist: Berliner Philharmoniker
by artist: Anatoly Kotcherga
by artist: Liliana Nichiteanu
by artist: Valentina Valente
by artist: Eugenia Gorochovskaya
by artist: Philip Langridge
by artist: Albert Shagidullin
by artist: Samuel Ramey
by artist: Sergej Larin
by artist: Marjana Lipovsek
by artist: Sergei Leiferkus
by artist: Helmut Wildhaber
by artist: Gleb Nikolsky
by artist: Elena Zaremba
by artist: Alexander Fedin
by artist: Slovak Philharmonic Chorus Bratislava
by artist: Rundfunkchor Berlin
by artist: Mikhail Krutikov
by artist: Wojtek Drabowicz
by artist: Tölz Boys' Choir
in album: Mussorgsky: Boris Godunov
  type: MusicAlbum
  date published: 1994-05-03
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db4899298436662073f0c013d37fdec4dffa8d376149a042a6254e673fc1ace. Chain 2 (Bitcoin): anchored in block 960231 (2026-07-30T08:33:28Z), 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/USSM10405469.
  date published: 2026-07-30T08:33:28Z
audio: Boris Godunov: Opera in Four Acts With a Prologue: Act I, Scene 2: Introduction
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 117.78
  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: 0.321
  additional property: Energy
    type: PropertyValue
    value: 0.025
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.953
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.607
  additional property: Liveness
    type: PropertyValue
    value: 0.118
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.374
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.683
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: USSM10405469
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960231
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T08:33:28+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10405469
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960231
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960231
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T08:33:28+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