Igor Bakan
type: MusicGroup
genre: opera
popularity: 3
followers: 1
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x76ca5969b7c928719515d5e7348e9461c4d122a5b5d30d593a4a2b3902ca4be4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953968
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953968
additional property: OTSProofURL
  type: PropertyValue
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additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/289b3223-f662-4386-a21a-fe9131f9c671.json
additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 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. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ca5969b7c928719515d5e7348e9461c4d122a5b5d30d593a4a2b3902ca4be4. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/289b3223-f662-4386-a21a-fe9131f9c671.json and https://artists.proofprofile.net/proofs/artist/289b3223-f662-4386-a21a-fe9131f9c671.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:46:20Z
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track: Simon Boccanegra / Prologue: "Oh, de'Fieschi implacata, orrida razza"
track: Simon Boccanegra / Act 1: Preludio
track: Simon Boccanegra / Act 1: "Cielo di stelle orbato"
track: Simon Boccanegra / Act 1: "Amelia, di come fosti rapita"
track: Simon Boccanegra / Prologue: Preludio. "Che dicesti?"
track: Simon Boccanegra / Prologue: "L'altra magion vedete?"
track: Simon Boccanegra / Act 1: "Che rispose?"
track: Simon Boccanegra / Act 1: "Messeri, il re di Tartaria vi porge"
track: Simon Boccanegra / Act 1: "Plebe! Patrizi! Popolo!..."Piango su voi"
track: Simon Boccanegra / Act 2: "Quei due vedesti?"

Simon Boccanegra / Prologue: "Oh, de'Fieschi implacata, orrida razza"
type: MusicRecording
duration: PT3M56S
duration ms: 236773
explicit: false
by artist: Giuseppe Verdi
by artist: Thomas Hampson
by artist: Carlo Colombara
by artist: Luca Pisaroni
by artist: Igor Bakan
by artist: Wiener Singakademie
by artist: Wiener Symphoniker
by artist: Massimo Zanetti
in album: Verdi: Simon Boccanegra
  type: MusicAlbum
  date published: 2013-01-01
genre: classical
genre: opera
isrc code: GBF071340405
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T02:44:14+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd8e21eea9569b8956a5f44b531eaddcdf3094d8f002340ad5c8c3511c8a6061a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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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/GBF071340405
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e21eea9569b8956a5f44b531eaddcdf3094d8f002340ad5c8c3511c8a6061a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF071340405.
  date published: 2026-07-08T03:53:27Z
audio: Simon Boccanegra / Prologue: "Oh, de'Fieschi implacata, orrida razza"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 114.828
  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
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.943
  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
    value: 0.062
  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.58
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Simon Boccanegra / Act 1: Preludio
type: MusicRecording
duration: PT2M7S
duration ms: 127760
explicit: false
by artist: Giuseppe Verdi
by artist: Joseph Calleja
by artist: Thomas Hampson
by artist: Kristine Opolais
by artist: Carlo Colombara
by artist: Luca Pisaroni
by artist: Igor Bakan
by artist: Andrew Owens
by artist: Wiener Singakademie
by artist: Wiener Symphoniker
by artist: Massimo Zanetti
in album: Verdi: Simon Boccanegra
  type: MusicAlbum
  date published: 2013-01-01
genre: classical
genre: opera
isrc code: GBF071340406
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF071340406
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f6dec9d8cee5533b04f6271fa2bcb9f689ded35c4865f265cc4584212238fdd. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF071340406.
  date published: 2026-07-08T03:22:41Z
audio: Simon Boccanegra / Act 1: Preludio
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 101.537
  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
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  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.857
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.257
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.037
  additional property: Loudness (dB)
    type: PropertyValue
    value: -36.542
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Simon Boccanegra / Act 1: "Cielo di stelle orbato"
type: MusicRecording
duration: PT7M8S
duration ms: 428706
explicit: false
by artist: Giuseppe Verdi
by artist: Joseph Calleja
by artist: Kristine Opolais
by artist: Gaia Petrone
by artist: Igor Bakan
by artist: Wiener Symphoniker
by artist: Massimo Zanetti
in album: Verdi: Simon Boccanegra
  type: MusicAlbum
  date published: 2013-01-01
genre: classical
genre: opera
isrc code: GBF071340408
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T07:51:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbb49915189baa697e559213dddef481e90a465e285af459511f851c4c47d8c62
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/GBF071340408
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 0xbb49915189baa697e559213dddef481e90a465e285af459511f851c4c47d8c62. 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/GBF071340408.
  date published: 2026-07-08T03:20:19Z
audio: Simon Boccanegra / Act 1: "Cielo di stelle orbato"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 119.444
  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: 0.342
  additional property: Energy
    type: PropertyValue
    value: 0.13
  additional property: Speechiness
    type: PropertyValue
    value: 0.07
  additional property: Acousticness
    type: PropertyValue
    value: 0.983
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.002
  additional property: Liveness
    type: PropertyValue
    value: 0.234
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.095
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.322
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Simon Boccanegra / Act 1: "Amelia, di come fosti rapita"
type: MusicRecording
duration: PT2M36S
duration ms: 156146
explicit: false
by artist: Giuseppe Verdi
by artist: Thomas Hampson
by artist: Kristine Opolais
by artist: Joseph Calleja
by artist: Luca Pisaroni
by artist: Igor Bakan
by artist: Carlo Colombara
by artist: Wiener Singakademie
by artist: Wiener Symphoniker
by artist: Massimo Zanetti
in album: Verdi: Simon Boccanegra
  type: MusicAlbum
  date published: 2013-01-01
genre: classical
genre: opera
isrc code: GBF071340415
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T16:15:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe9ca628073851f1857296fe82be2a883ef312ec6dcd6a837d45d7bf356379aba
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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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/GBF071340415
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ca628073851f1857296fe82be2a883ef312ec6dcd6a837d45d7bf356379aba. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF071340415.
  date published: 2026-07-08T03:22:41Z
audio: Simon Boccanegra / Act 1: "Amelia, di come fosti rapita"
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Simon Boccanegra / Prologue: Preludio. "Che dicesti?"
type: MusicRecording
duration: PT6M36S
duration ms: 396346
explicit: false
by artist: Giuseppe Verdi
by artist: Luca Pisaroni
by artist: Igor Bakan
by artist: Thomas Hampson
by artist: Wiener Singakademie
by artist: Wiener Symphoniker
by artist: Massimo Zanetti
in album: Verdi: Simon Boccanegra
  type: MusicAlbum
  date published: 2013-01-01
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 0x8d434023ded14ddfb31cbf20370a57faaa90df1cfcc1cf8eaa935558b3e9fe8f. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/GBF071340401.
  date published: 2026-07-30T07:28:30Z
audio: Simon Boccanegra / Prologue: Preludio. "Che dicesti?"
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
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  additional property: Valence (Positivity)
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    value: 0.046
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.748
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: GBF071340401
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
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additional property: BitcoinTime
  type: PropertyValue
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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/960220
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T07:28:30+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

Simon Boccanegra / Prologue: "L'altra magion vedete?"
type: MusicRecording
duration: PT2M54S
duration ms: 174960
explicit: false
by artist: Giuseppe Verdi
by artist: Luca Pisaroni
by artist: Igor Bakan
by artist: Wiener Singakademie
by artist: Wiener Symphoniker
by artist: Massimo Zanetti
in album: Verdi: Simon Boccanegra
  type: MusicAlbum
  date published: 2013-01-01
genre: classical
genre: opera
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T09:37:10Z
audio: Simon Boccanegra / Prologue: "L'altra magion vedete?"
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Simon Boccanegra / Act 1: "Che rispose?"
type: MusicRecording
duration: PT1M14S
duration ms: 74146
explicit: false
by artist: Giuseppe Verdi
by artist: Luca Pisaroni
by artist: Thomas Hampson
by artist: Igor Bakan
by artist: Wiener Symphoniker
by artist: Massimo Zanetti
in album: Verdi: Simon Boccanegra
  type: MusicAlbum
  date published: 2013-01-01
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 0xb27c4614ee24e0f4246776d002642709a796e024ec6bdafd7402410162ece512. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/GBF071340412.
  date published: 2026-07-31T17:29:52Z
audio: Simon Boccanegra / Act 1: "Che rispose?"
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Simon Boccanegra / Act 1: "Messeri, il re di Tartaria vi porge"
type: MusicRecording
duration: PT6M56S
duration ms: 416720
explicit: false
by artist: Giuseppe Verdi
by artist: Thomas Hampson
by artist: Luca Pisaroni
by artist: Igor Bakan
by artist: Joseph Calleja
by artist: Kristine Opolais
by artist: Carlo Colombara
by artist: Wiener Singakademie
by artist: Wiener Symphoniker
by artist: Massimo Zanetti
in album: Verdi: Simon Boccanegra
  type: MusicAlbum
  date published: 2013-01-01
genre: classical
genre: opera
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T20:09:33Z
audio: Simon Boccanegra / Act 1: "Messeri, il re di Tartaria vi porge"
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additional property: OTSVerifyInstructions
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Simon Boccanegra / Act 1: "Plebe! Patrizi! Popolo!..."Piango su voi"
type: MusicRecording
duration: PT5M11S
duration ms: 311893
explicit: false
by artist: Giuseppe Verdi
by artist: Thomas Hampson
by artist: Kristine Opolais
by artist: Carlo Colombara
by artist: Joseph Calleja
by artist: Luca Pisaroni
by artist: Igor Bakan
by artist: Wiener Singakademie
by artist: Wiener Symphoniker
by artist: Massimo Zanetti
in album: Verdi: Simon Boccanegra
  type: MusicAlbum
  date published: 2013-01-01
genre: classical
genre: opera
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T19:11:09Z
audio: Simon Boccanegra / Act 1: "Plebe! Patrizi! Popolo!..."Piango su voi"
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additional property: OTSVerifyInstructions
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Simon Boccanegra / Act 2: "Quei due vedesti?"
type: MusicRecording
duration: PT2M20S
duration ms: 140960
explicit: false
by artist: Giuseppe Verdi
by artist: Luca Pisaroni
by artist: Igor Bakan
by artist: Wiener Symphoniker
by artist: Massimo Zanetti
in album: Verdi: Simon Boccanegra
  type: MusicAlbum
  date published: 2013-01-01
genre: classical
genre: opera
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T08:38:45Z
audio: Simon Boccanegra / Act 2: "Quei due vedesti?"
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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