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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 1, Scene 1: "They are ringing for matins"
track: Boris Godunov: Opera in Four Acts With a Prologue: Act II: "Hey, Pss!"
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 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
track: Boris Godunov: Opera in Four Acts With a Prologue: Act I, Scene 2: "Here's what happened at the town of Kazan"
track: Boris Godunov: Opera in Four Acts With a Prologue: Act II: "Where are you, my Betrothed"
track: Boris Godunov: Opera in Four Acts With a Prologue: Act II: "Oh, that's enough, Princess, my dear!"
track: Boris Godunov: Opera in Four Acts With a Prologue: Act II: "A gnat was chopping wood"
track: Boris Godunov: Opera in Four Acts With a Prologue: Act II: "My little tale is about this and that"
track: Boris Godunov: Opera in Four Acts With a Prologue: Act II: "What's the matter? Has a wild beast surprised a sitting hen?"
track: Boris Godunov: Opera in Four Acts With a Prologue: Act II: "I have achieved absolute power"

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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: 2026-07-06T07:53:57Z
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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: 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
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audio: Boris Godunov: Opera in Four Acts With a Prologue: Act I, Scene 1: "Do not complain, brother"
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Boris Godunov: Opera in Four Acts With a Prologue: Act 1, Scene 1: "They are ringing for matins"
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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: 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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Boris Godunov: Opera in Four Acts With a Prologue: Act II: "Hey, Pss!"
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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
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Boris Godunov: Opera in Four Acts With a Prologue: Prologue, Scene 2, Introduction
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by artist: Sergej Larin
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by artist: Helmut Wildhaber
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by artist: Alexander Fedin
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genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
subject of: OpenTimestamps Proof of Existence
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  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
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  additional property: Time Signature
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    value: 5
  additional property: Danceability
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  additional property: Energy
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    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
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  additional property: Valence (Positivity)
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    value: 0.068
  additional property: Loudness (dB)
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    value: -23.209
  additional property: Key Name
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    value: C
  additional property: Mode Name
    type: PropertyValue
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isrc code: USSM10405457
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
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: 2026-07-22T17:48:40+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 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)
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  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
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    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
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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  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
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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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
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  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
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  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
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additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
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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
  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)
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  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
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    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
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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
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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
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    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
  type: PropertyValue
  value: 2026-07-30T09:37:10+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10405465
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960236
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
  value: true
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

Boris Godunov: Opera in Four Acts With a Prologue: Act I, Scene 2: "Here's what happened at the town of Kazan"
type: MusicRecording
duration: PT2M15S
duration ms: 135800
explicit: false
by artist: Modest Mussorgsky
by artist: Claudio Abbado
by artist: Berliner Philharmoniker
by artist: Gleb Nikolsky
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: 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 0xfdc2b733c905b9e53779ea7075ae78a1826315f1dd39352fe74eecca4a7f00c6. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/USSM10405473.
  date published: 2026-07-30T14:44:50Z
audio: Boris Godunov: Opera in Four Acts With a Prologue: Act I, Scene 2: "Here's what happened at the town of Kazan"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.158
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.446
  additional property: Energy
    type: PropertyValue
    value: 0.201
  additional property: Speechiness
    type: PropertyValue
    value: 0.054
  additional property: Acousticness
    type: PropertyValue
    value: 0.979
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.462
  additional property: Liveness
    type: PropertyValue
    value: 0.693
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.459
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.453
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: USSM10405473
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: 960266
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T14:44:50+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10405473
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960266
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960266
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T14:44:50+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 II: "Where are you, my Betrothed"
type: MusicRecording
duration: PT2M13S
duration ms: 133866
explicit: false
by artist: Modest Mussorgsky
by artist: Claudio Abbado
by artist: Berliner Philharmoniker
by artist: Liliana Nichiteanu
by artist: Valentina Valente
by artist: Anatoly Kotcherga
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 0x96dcecdbcecd9d088368b8542ca0aa66e045454747def8a867ecf40773e78935. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10405478.
  date published: 2026-07-30T18:23:33Z
audio: Boris Godunov: Opera in Four Acts With a Prologue: Act II: "Where are you, my Betrothed"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 122.955
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.321
  additional property: Energy
    type: PropertyValue
    value: 0.044
  additional property: Speechiness
    type: PropertyValue
    value: 0.052
  additional property: Acousticness
    type: PropertyValue
    value: 0.944
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.255
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.09
  additional property: Loudness (dB)
    type: PropertyValue
    value: -32.79
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: USSM10405478
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: 960291
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T18:23:33+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10405478
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960291
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960291
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T18:23:33+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 II: "Oh, that's enough, Princess, my dear!"
type: MusicRecording
duration: PT1M54S
duration ms: 114266
explicit: false
by artist: Modest Mussorgsky
by artist: Claudio Abbado
by artist: Berliner Philharmoniker
by artist: Valentina Valente
by artist: Eugenia Gorochovskaya
by artist: Anatoly Kotcherga
by artist: Liliana Nichiteanu
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 0x4f16d005dfe6afe4e504f3c482a4e9b74677a96c9cbd52ab2efa484624a6a380. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/USSM10405479.
  date published: 2026-07-30T09:58:01Z
audio: Boris Godunov: Opera in Four Acts With a Prologue: Act II: "Oh, that's enough, Princess, my dear!"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 103.608
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.323
  additional property: Energy
    type: PropertyValue
    value: 0.025
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.966
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.239
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.166
  additional property: Loudness (dB)
    type: PropertyValue
    value: -32.96
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: USSM10405479
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: 960241
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T09:58:01+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10405479
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960241
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960241
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T09:58:01+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 II: "A gnat was chopping wood"
type: MusicRecording
duration: PT2M27S
duration ms: 147666
explicit: false
by artist: Modest Mussorgsky
by artist: Claudio Abbado
by artist: Berliner Philharmoniker
by artist: Liliana Nichiteanu
by artist: Eugenia Gorochovskaya
by artist: Anatoly Kotcherga
by artist: Valentina Valente
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 0x9ebf6cc672e8cbff83e09e95f276d82a24419749939b1bcb6bb2e54ec35a121f. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10405480.
  date published: 2026-07-30T18:23:33Z
audio: Boris Godunov: Opera in Four Acts With a Prologue: Act II: "A gnat was chopping wood"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 144.892
  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: 0.397
  additional property: Energy
    type: PropertyValue
    value: 0.022
  additional property: Speechiness
    type: PropertyValue
    value: 0.056
  additional property: Acousticness
    type: PropertyValue
    value: 0.984
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.52
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.173
  additional property: Loudness (dB)
    type: PropertyValue
    value: -31.524
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: USSM10405480
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: 960291
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T18:23:33+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10405480
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960291
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960291
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T18:23:33+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 II: "My little tale is about this and that"
type: MusicRecording
duration: PT1M31S
duration ms: 91200
explicit: false
by artist: Modest Mussorgsky
by artist: Claudio Abbado
by artist: Berliner Philharmoniker
by artist: Liliana Nichiteanu
by artist: Eugenia Gorochovskaya
by artist: Anatoly Kotcherga
by artist: Valentina Valente
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 0x7f98f7d963a5e4529366c19a9ec98d0c68f912bf1ca4fa5880f8b23544fa7d54. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/USSM10405481.
  date published: 2026-07-30T21:35:24Z
audio: Boris Godunov: Opera in Four Acts With a Prologue: Act II: "My little tale is about this and that"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 108.923
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.525
  additional property: Energy
    type: PropertyValue
    value: 0.084
  additional property: Speechiness
    type: PropertyValue
    value: 0.091
  additional property: Acousticness
    type: PropertyValue
    value: 0.977
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.017
  additional property: Liveness
    type: PropertyValue
    value: 0.085
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.845
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.019
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: USSM10405481
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: 960317
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T21:35:24+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10405481
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960317
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960317
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T21:35:24+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: Act II: "What's the matter? Has a wild beast surprised a sitting hen?"
type: MusicRecording
duration: PT3M36S
duration ms: 216560
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 0xb5048a1686084aa33bed6b92668458d12d965632a2279b68d2c0881ac6bc4e32. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10405482.
  date published: 2026-07-30T14:53:07Z
audio: Boris Godunov: Opera in Four Acts With a Prologue: Act II: "What's the matter? Has a wild beast surprised a sitting hen?"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 93.262
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.204
  additional property: Energy
    type: PropertyValue
    value: 0.021
  additional property: Speechiness
    type: PropertyValue
    value: 0.055
  additional property: Acousticness
    type: PropertyValue
    value: 0.975
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.255
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.059
  additional property: Loudness (dB)
    type: PropertyValue
    value: -30.136
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: USSM10405482
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: 960268
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T14:53:07+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10405482
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960268
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960268
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T14:53:07+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 II: "I have achieved absolute power"
type: MusicRecording
duration: PT4M55S
duration ms: 295333
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 0x8015509b9a069283ae7e44977f91465b8c0388602394b1857cceca3ac2d717eb. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/USSM10405483.
  date published: 2026-07-30T21:00:46Z
audio: Boris Godunov: Opera in Four Acts With a Prologue: Act II: "I have achieved absolute power"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 114.444
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.278
  additional property: Energy
    type: PropertyValue
    value: 0.052
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.984
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.013
  additional property: Liveness
    type: PropertyValue
    value: 0.378
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.171
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.073
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: USSM10405483
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: 960314
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T21:00:46+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10405483
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960314
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960314
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T21:00:46+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