Mariinsky Orchestra
type: MusicGroup
genre: classical
genre: opera
genre: orchestra
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followers: 21939
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subject of: OpenTimestamps Proof of Existence
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album: Verdi: Messa da Requiem
  type: MusicAlbum
  date published: 2001-03-20
  track: Requiem: I. Introit – Kyrie
  track: Messa da Requiem: 3. Offertorium
  track: Requiem: IIa. Dies irae
  track: Messa da Requiem: 5. Agnus Dei
  track: Requiem: IId. Liber scriptus
  track: Requiem: IIe. Quid sum miser
  track: Messa da Requiem: 7. Libera me
  track: Messa da Requiem: 4. Sanctus
  track: Requiem: IIb-c. Tuba mirum – Mors stupebit
  track: Messa da Requiem: 6. Lux aeterna
  track: Requiem: IIf. Rex tremendae
  track: Requiem: IIg. Recordare
  track: Requiem: IIh. Ingemisco
  track: Requiem: IIi. Confutatis
  track: Requiem: IIj. Lacrymosa
album: Prokofiev: Operas
  type: MusicAlbum
  date published: 2010-01-01
album: Tchaikovsky: The Nutcracker
  type: MusicAlbum
  date published: 1998-10-05
  track: The Nutcracker, Op. 71, Act II: No. 12, Divertissement: b. Coffee (Arabian Dance)
  track: The Nutcracker, Op. 71, Act II: No. 12, Divertissement: e. Dance of the Reed-Pipes
  track: The Nutcracker, Op. 71, Act II: No. 14, Pas de deux: Var. 2. Dance of the Sugar Plum Fairy
album: Tchaikovsky: Swan Lake
  type: MusicAlbum
  date published: 2007-10-15
  track: Swan Lake, Op. 20 (Mariinsky Version), Act I: No. 10, Scene. Moderato
album: Rachmaninov: Piano Concerto No.2; Rhapsody on a Theme of Paganini; Prelude op.23
  type: MusicAlbum
  date published: 2005-01-01
  track: Rhapsody on a Theme of Paganini, Op. 43: Variation No. 18 - Live
track: In the Steppes of Central Asia
track: Adagio from Spartacus: Onedin Line theme
track: Romeo and Juliet, Op. 64 / Act 1: 13. Dance Of The Knights
track: Piano Concerto No. 2 In C Minor, Op. 18: 2. Adagio sostenuto - Live
track: Tosca, SC 69, Act II: Vissi d'arte, vissi d'amore

Requiem: I. Introit – Kyrie
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by artist: Giuseppe Verdi
by artist: Renée Fleming
by artist: Olga Borodina
by artist: Andrea Bocelli
by artist: Ildebrando D'Arcangelo
by artist: Mariinsky Chorus
by artist: Mariinsky Orchestra
by artist: Valery Gergiev
in album: Verdi: Messa da Requiem
  type: MusicAlbum
  date published: 2001-03-20
genre: classical
genre: opera
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  date published: 2026-07-07T12:58:18Z
audio: Requiem: I. Introit – Kyrie
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Messa da Requiem: 3. Offertorium
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  date published: 2026-07-08T03:53:27Z
audio: Messa da Requiem: 3. Offertorium
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Requiem: IIa. Dies irae
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by artist: Giuseppe Verdi
by artist: Mariinsky Chorus
by artist: Mariinsky Orchestra
by artist: Valery Gergiev
in album: Verdi: Messa da Requiem
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  date published: 2001-03-20
popularity: 49
genre: classical
genre: opera
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  date published: 2026-06-13T12:47:07Z
audio: Requiem: IIa. Dies irae
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Messa da Requiem: 5. Agnus Dei
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by artist: Giuseppe Verdi
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by artist: Olga Borodina
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by artist: Mariinsky Orchestra
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genre: classical
genre: opera
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additional property: OTSVerifyInstructions
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  date published: 2026-07-08T03:20:19Z
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Requiem: IId. Liber scriptus
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    value: 0.98
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.002
  additional property: Liveness
    type: PropertyValue
    value: 0.085
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.035
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.388
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Requiem: IIe. Quid sum miser
type: MusicRecording
duration: PT3M55S
duration ms: 235693
explicit: false
by artist: Giuseppe Verdi
by artist: Renée Fleming
by artist: Olga Borodina
by artist: Andrea Bocelli
by artist: Mariinsky Orchestra
by artist: Valery Gergiev
in album: Verdi: Messa da Requiem
  type: MusicAlbum
  date published: 2001-03-20
genre: classical
genre: opera
isrc code: GBBBB2011805
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T22:13:04+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9c452ef4383d47fb20284c56b901cffd655f625a93c5ea84bd7b7d81f6638985
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/GBBBB2011805
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 0x9c452ef4383d47fb20284c56b901cffd655f625a93c5ea84bd7b7d81f6638985. 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/GBBBB2011805.
  date published: 2026-07-08T03:20:19Z
audio: Requiem: IIe. Quid sum miser
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 170.239
  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: 0.141
  additional property: Energy
    type: PropertyValue
    value: 0.047
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.985
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.059
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.047
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.594
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Messa da Requiem: 7. Libera me
type: MusicRecording
duration: PT14M8S
duration ms: 848266
explicit: false
by artist: Giuseppe Verdi
by artist: Renée Fleming
by artist: Mariinsky Orchestra
by artist: Valery Gergiev
in album: Verdi: Messa da Requiem
  type: MusicAlbum
  date published: 2001-03-20
genre: classical
genre: opera
isrc code: GBBBB2011815
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T10:02:57+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4cf4e27c0fe6513a9d9cbf8ae65ac396faf51dc751faa763dcb0b1ac5f4e2309
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957011
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957011
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBB2011815
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T08:25:35+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
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: 957011
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-07T08:25:35+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 0x4cf4e27c0fe6513a9d9cbf8ae65ac396faf51dc751faa763dcb0b1ac5f4e2309. Chain 2 (Bitcoin): anchored in block 957013 (2026-07-07T08:31:11Z), 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/GBBBB2011815.
  date published: 2026-07-07T08:31:11Z
audio: Messa da Requiem: 7. Libera me
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 134.112
  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: 0.265
  additional property: Energy
    type: PropertyValue
    value: 0.205
  additional property: Speechiness
    type: PropertyValue
    value: 0.07
  additional property: Acousticness
    type: PropertyValue
    value: 0.98
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.339
  additional property: Liveness
    type: PropertyValue
    value: 0.063
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.04
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.419
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Messa da Requiem: 4. Sanctus
type: MusicRecording
duration: PT2M22S
duration ms: 142400
explicit: false
by artist: Giuseppe Verdi
by artist: Mariinsky Chorus
by artist: Mariinsky Orchestra
by artist: Valery Gergiev
in album: Verdi: Messa da Requiem
  type: MusicAlbum
  date published: 2001-03-20
genre: classical
genre: opera
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6843d389f21084dcd3c696177b995148ac9604eca7f06d269e4d6a778f44137. Chain 2 (Bitcoin): anchored in block 960305 (2026-07-30T20:14:59Z), 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/GBBBB2011812.
  date published: 2026-07-30T20:14:59Z
audio: Messa da Requiem: 4. Sanctus
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 137.606
  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: 0.25
  additional property: Energy
    type: PropertyValue
    value: 0.307
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.987
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.937
  additional property: Liveness
    type: PropertyValue
    value: 0.05
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.217
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.66
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: GBBBB2011812
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: 960305
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T20:14:59+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBB2011812
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960305
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960305
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T20:14:59+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

Requiem: IIb-c. Tuba mirum – Mors stupebit
type: MusicRecording
duration: PT3M6S
duration ms: 186866
explicit: false
by artist: Giuseppe Verdi
by artist: Ildebrando D'Arcangelo
by artist: Mariinsky Chorus
by artist: Mariinsky Orchestra
by artist: Valery Gergiev
in album: Verdi: Messa da Requiem
  type: MusicAlbum
  date published: 2001-03-20
genre: classical
genre: opera
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x756567fc003d9f481d27c35614251de523c40f550f0082cb9f29d4d96e97e834. 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/GBBBB2011803.
  date published: 2026-07-29T19:35:34Z
audio: Requiem: IIb-c. Tuba mirum – Mors stupebit
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 168.981
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.158
  additional property: Energy
    type: PropertyValue
    value: 0.332
  additional property: Speechiness
    type: PropertyValue
    value: 0.07
  additional property: Acousticness
    type: PropertyValue
    value: 0.939
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.262
  additional property: Liveness
    type: PropertyValue
    value: 0.151
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.033
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.533
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: GBBBB2011803
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/GBBBB2011803
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

Messa da Requiem: 6. Lux aeterna
type: MusicRecording
duration: PT6M26S
duration ms: 386120
explicit: false
by artist: Giuseppe Verdi
by artist: Olga Borodina
by artist: Andrea Bocelli
by artist: Ildebrando D'Arcangelo
by artist: Mariinsky Chorus
by artist: Mariinsky Orchestra
by artist: Valery Gergiev
in album: Verdi: Messa da Requiem
  type: MusicAlbum
  date published: 2001-03-20
genre: classical
genre: opera
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d5061f19603358ad8ce600101183e6fe4e306eb85f42ee048d28b4a4a0c26a7. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBB2011814.
  date published: 2026-07-30T19:11:09Z
audio: Messa da Requiem: 6. Lux aeterna
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 101.955
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.124
  additional property: Energy
    type: PropertyValue
    value: 0.082
  additional property: Speechiness
    type: PropertyValue
    value: 0.053
  additional property: Acousticness
    type: PropertyValue
    value: 0.981
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.002
  additional property: Liveness
    type: PropertyValue
    value: 0.353
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.034
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.045
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: GBBBB2011814
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: 960296
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T19:11:09+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBB2011814
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960296
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960296
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T19:11:09+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

Requiem: IIf. Rex tremendae
type: MusicRecording
duration: PT3M42S
duration ms: 222626
explicit: false
by artist: Giuseppe Verdi
by artist: Renée Fleming
by artist: Olga Borodina
by artist: Andrea Bocelli
by artist: Ildebrando D'Arcangelo
by artist: Mariinsky Chorus
by artist: Mariinsky Orchestra
by artist: Valery Gergiev
in album: Verdi: Messa da Requiem
  type: MusicAlbum
  date published: 2001-03-20
genre: classical
genre: opera
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8177ea962bf8ae8ef6a092fc0ad0fbdda54f9055b48d9576bce33f2b3afe8efb. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/GBBBB2011806.
  date published: 2026-07-30T04:47:22Z
audio: Requiem: IIf. Rex tremendae
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 103.617
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.125
  additional property: Energy
    type: PropertyValue
    value: 0.232
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.973
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.107
  additional property: Liveness
    type: PropertyValue
    value: 0.189
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.057
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.977
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: GBBBB2011806
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: 960207
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T04:47:22+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBB2011806
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960207
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960207
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T04:47:22+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

Requiem: IIg. Recordare
type: MusicRecording
duration: PT4M32S
duration ms: 272173
explicit: false
by artist: Giuseppe Verdi
by artist: Renée Fleming
by artist: Olga Borodina
by artist: Mariinsky Orchestra
by artist: Valery Gergiev
in album: Verdi: Messa da Requiem
  type: MusicAlbum
  date published: 2001-03-20
genre: classical
genre: opera
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa9a498f14619acb13917398cd7ec932388be9e17c560495198469f59338620. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), 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/GBBBB2011807.
  date published: 2026-07-29T22:12:10Z
audio: Requiem: IIg. Recordare
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 167.819
  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: 0.135
  additional property: Energy
    type: PropertyValue
    value: 0.064
  additional property: Speechiness
    type: PropertyValue
    value: 0.047
  additional property: Acousticness
    type: PropertyValue
    value: 0.985
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.127
  additional property: Liveness
    type: PropertyValue
    value: 0.115
  additional property: Valence (Positivity)
    type: PropertyValue
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additional property: OTSVerifyInstructions
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Requiem: IIh. Ingemisco
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by artist: Giuseppe Verdi
by artist: Andrea Bocelli
by artist: Mariinsky Orchestra
by artist: Valery Gergiev
in album: Verdi: Messa da Requiem
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genre: classical
genre: opera
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T21:13:37Z
audio: Requiem: IIh. Ingemisco
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Requiem: IIi. Confutatis
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by artist: Giuseppe Verdi
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by artist: Mariinsky Chorus
by artist: Mariinsky Orchestra
by artist: Valery Gergiev
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genre: classical
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  date published: 2026-07-29T23:20:38Z
audio: Requiem: IIi. Confutatis
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additional property: OTSVerifyInstructions
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Requiem: IIj. Lacrymosa
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duration: PT6M48S
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explicit: false
by artist: Giuseppe Verdi
by artist: Renée Fleming
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by artist: Ildebrando D'Arcangelo
by artist: Mariinsky Chorus
by artist: Mariinsky Orchestra
by artist: Valery Gergiev
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genre: classical
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  date published: 2026-07-30T06:57:05Z
audio: Requiem: IIj. Lacrymosa
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The Nutcracker, Op. 71, Act II: No. 12, Divertissement: b. Coffee (Arabian Dance)
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by artist: Valery Gergiev
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popularity: 42
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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  date published: 2026-06-13T15:41:10Z
audio: The Nutcracker, Op. 71, Act II: No. 12, Divertissement: b. Coffee (Arabian Dance)
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The Nutcracker, Op. 71, Act II: No. 12, Divertissement: e. Dance of the Reed-Pipes
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duration: PT2M13S
duration ms: 133800
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by artist: Valery Gergiev
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popularity: 45
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  date published: 2026-06-13T15:41:10Z
audio: The Nutcracker, Op. 71, Act II: No. 12, Divertissement: e. Dance of the Reed-Pipes
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The Nutcracker, Op. 71, Act II: No. 14, Pas de deux: Var. 2. Dance of the Sugar Plum Fairy
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duration: PT2M5S
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explicit: false
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by artist: Valery Gergiev
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popularity: 38
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  date published: 2026-06-13T15:41:10Z
audio: The Nutcracker, Op. 71, Act II: No. 14, Pas de deux: Var. 2. Dance of the Sugar Plum Fairy
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Swan Lake, Op. 20 (Mariinsky Version), Act I: No. 10, Scene. Moderato
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  date published: 2026-06-13T17:25:41Z
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Rhapsody on a Theme of Paganini, Op. 43: Variation No. 18 - Live
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by artist: Lang Lang
by artist: Mariinsky Orchestra
by artist: Valery Gergiev
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  date published: 2026-06-13T15:41:10Z
audio: Rhapsody on a Theme of Paganini, Op. 43: Variation No. 18 - Live
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In the Steppes of Central Asia
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by artist: Mariinsky Orchestra
by artist: Valery Gergiev
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popularity: 19
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  date published: 2026-06-13T15:41:10Z
audio: In the Steppes of Central Asia
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Adagio from Spartacus: Onedin Line theme
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by artist: Mariinsky Orchestra
by artist: Valery Gergiev
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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  date published: 2026-07-02T03:30:09Z
audio: Adagio from Spartacus: Onedin Line theme
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Romeo and Juliet, Op. 64 / Act 1: 13. Dance Of The Knights
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by artist: Mariinsky Orchestra
by artist: Valery Gergiev
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  date published: 2026-07-06T01:25:57Z
audio: Romeo and Juliet, Op. 64 / Act 1: 13. Dance Of The Knights
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Piano Concerto No. 2 In C Minor, Op. 18: 2. Adagio sostenuto - Live
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duration: PT4M27S
duration ms: 267306
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by artist: Sergei Rachmaninoff
by artist: Lang Lang
by artist: Mariinsky Orchestra
by artist: Valery Gergiev
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popularity: 2
genre: classical
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  date published: 2026-07-31T18:48:12Z
audio: Piano Concerto No. 2 In C Minor, Op. 18: 2. Adagio sostenuto - Live
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additional property: OTSVerifyInstructions
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Tosca, SC 69, Act II: Vissi d'arte, vissi d'amore
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duration: PT3M48S
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by artist: Renée Fleming
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by artist: Valery Gergiev
in album: Renée Fleming singt italienische Arien
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  date published: 2026-07-31T15:27:29Z
audio: Tosca, SC 69, Act II: Vissi d'arte, vissi d'amore
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    type: PropertyValue
    value: 0.986
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.658
  additional property: Liveness
    type: PropertyValue
    value: 0.074
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.037
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.47
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: GBBBA0641540
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: 960311
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T20:45:02+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0641540
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960311
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960311
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T20:45:02+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch