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type: MusicGroup
genre: choral
genre: classical
popularity: 24
followers: 336
additional property: CopyrightID
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: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b921c291-ef57-4500-8c7c-e34ad94db800.ots
additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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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
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  date published: 2026-06-12T19:28:13Z
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album: Sullivan: Cox and Box & Trial by Jury
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  date published: 2005-06-01
  track: Trial by Jury: Oh Gentlemen Listen I Pray (Defendant, Chorus of Bridesmaids)
    type: MusicRecording
    duration: PT1M37S
    duration ms: 97143
    explicit: false
    by artist: Arthur Sullivan
    by artist: Richard Hickox
    by artist: BBC National Orchestra Of Wales
    by artist: James Gilchrist
    by artist: Chamber Choir of the Royal Welsh College of Music and Drama
    in album: Sullivan: Cox and Box & Trial by Jury
      type: MusicAlbum
      date published: 2005-06-01
    popularity: 2
    genre: late-romantic-era
    genre: victorian-britain
    genre: operetta
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    additional property: CopyrightID
    additional property: CopyrightStatus
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    additional property: OTSVerificationAPI
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    additional property: OTSTimestamp
      type: PropertyValue
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    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf296087140d52764959522393b71d43f20b07e415478a65efc6f21aea2e6c3. 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/GBLWD0506827.
      date published: 2026-07-08T03:22:41Z
    audio: Trial by Jury: Oh Gentlemen Listen I Pray (Defendant, Chorus of Bridesmaids)
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  track: Trial by Jury: I Love Him - I Love Him (Plaintiff, Defendant, Judge, Counsel, Foreman, Chorus)
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    duration: PT2M25S
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    by artist: Arthur Sullivan
    by artist: Richard Hickox
    by artist: BBC National Orchestra Of Wales
    by artist: Rebecca Evans
    by artist: James Gilchrist
    by artist: Donald Maxwell
    by artist: Matthew Brook
    by artist: David Thaxton
    by artist: Chamber Choir of the Royal Welsh College of Music and Drama
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      type: MusicAlbum
      date published: 2005-06-01
    popularity: 2
    genre: late-romantic-era
    genre: victorian-britain
    genre: operetta
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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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
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      date published: 2026-07-08T08:56:20Z
    audio: Trial by Jury: I Love Him - I Love Him (Plaintiff, Defendant, Judge, Counsel, Foreman, Chorus)
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  track: Trial by Jury: Hark, the Hour of Ten is Sounding (Usher, Chorus)
  track: Trial by Jury: Oh Never, Never, Never… (Judge, Foreman, Plaintiff, Usher, Chorus)
  track: Trial by Jury: That She is Reeling is Plain to See! (Judge, Foreman, Plaintiff, Counsel, Defendant, Usher, Foreman)
  track: Trial by Jury: Oh Joy Unbounded (Plaintiff, Counsel, Defendant, Usher, Judge, Foreman, Chorus)
album: Janáček: Jenůfa
track: Symphony No. 9 in D Minor, Op. 125 "Choral": II. Molto vivace
track: Symphony No. 9 in D Minor, Op. 125, "Choral": IV. Finale. Presto - Allegro assai
track: Britten: Billy Budd, Op. 50, Act 1, Scene 1: "Your Name? Billy Budd, Sir" (Claggart, Billy, Redburn, Flint)
track: Britten: Billy Budd, Op. 50, Act 1, Scene 2: "Mr Redburn and Mr Flint, Sir!" (Boy, Vere, Redburn, Flint)
track: Symphony No. 9 in D Minor, Op. 125 "Choral": I. Allegro ma non troppo, un poco maestoso
track: Britten: Billy Budd, Op. 50, Act 1, Scene 2: "We Are, Sir, Claggart Is an Able One" (Redburn, Vere, Flint, Sailors, Ratcliffe)
track: Symphony No. 9 in D Minor, Op. 125 "Choral": III. Adagio molto e cantabile - Andante moderato
track: Britten: Billy Budd, Op. 50, Act 1, Scene 1: "Boat Ahoy" (Maintop, Midshipmen, Flint, Redburn, Bosun, Ratcliffe, Claggart)
track: Britten: Billy Budd, Op. 50, Act 1, Scene 1: "First Man Forward! (Claggart, Red Whiskers, Redburn, Flint, Jones)
track: Britten: Billy Budd, Op. 50, Act 1, Scene 1: "Billy Budd, King of the Birds!" (Billy, Sailors, Flint, Redburn, Ratcliffe, Claggart)
track: Britten: Billy Budd, Op. 50, Act 2, Scene 1: "I Don't Like the Look of the Mist" (Vere, Redburn)
track: Britten: Billy Budd, Op. 50, Act 2, Scene 1: "Deck Ahoy! Enemy Sail on Starboard Bow!" (Maintop, Bosun, Flint, Redburn, Ratcliffe, Sailors, Vere)
track: Britten: Billy Budd, Op. 50, Act 2, Scene 1: "Volunteers! Call for Boarding Volunteers!" (Vere, Redburn, Donald, Red Whiskers, Dansker, Sailors, Billy, Maintop, Ratcliffe)
track: Britten: Billy Budd, Op. 50, Act 2, Scene 2: "Gentlemen, William Budd Here Has Killed" (Vere, Redburn, Flint, Ratcliffe)

Trial by Jury: Hark, the Hour of Ten is Sounding (Usher, Chorus)
type: MusicRecording
duration: PT3M8S
duration ms: 188877
explicit: false
by artist: Arthur Sullivan
by artist: Richard Hickox
by artist: BBC National Orchestra Of Wales
by artist: Neal Davies
by artist: Chamber Choir of the Royal Welsh College of Music and Drama
in album: Sullivan: Cox and Box & Trial by Jury
  type: MusicAlbum
  date published: 2005-06-01
popularity: 3
genre: late-romantic-era
genre: victorian-britain
genre: operetta
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3955c7a7ebcde646e90d23760afdb4d4ee7af49176a5fafae8b0ba52744a6fa. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/GBLWD0506817.
  date published: 2026-08-01T02:22:04Z
audio: Trial by Jury: Hark, the Hour of Ten is Sounding (Usher, Chorus)
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additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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additional property: OTSHash
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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

Trial by Jury: Oh Never, Never, Never… (Judge, Foreman, Plaintiff, Usher, Chorus)
type: MusicRecording
duration: PT1M15S
duration ms: 75010
explicit: false
by artist: Arthur Sullivan
by artist: Richard Hickox
by artist: BBC National Orchestra Of Wales
by artist: Donald Maxwell
by artist: David Thaxton
by artist: Rebecca Evans
by artist: Neal Davies
by artist: Chamber Choir of the Royal Welsh College of Music and Drama
in album: Sullivan: Cox and Box & Trial by Jury
  type: MusicAlbum
  date published: 2005-06-01
popularity: 1
genre: late-romantic-era
genre: victorian-britain
genre: operetta
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x954c26067f98fa6bc2d408740c8038e717d1e7bd8c1e8400f50d95788f06dd3e. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/GBLWD0506824.
  date published: 2026-08-01T01:44:32Z
audio: Trial by Jury: Oh Never, Never, Never… (Judge, Foreman, Plaintiff, Usher, Chorus)
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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

Trial by Jury: That She is Reeling is Plain to See! (Judge, Foreman, Plaintiff, Counsel, Defendant, Usher, Foreman)
type: MusicRecording
duration: PT0M50S
duration ms: 50410
explicit: false
by artist: Arthur Sullivan
by artist: Richard Hickox
by artist: BBC National Orchestra Of Wales
by artist: Donald Maxwell
by artist: David Thaxton
by artist: Rebecca Evans
by artist: Matthew Brook
by artist: James Gilchrist
by artist: Neal Davies
in album: Sullivan: Cox and Box & Trial by Jury
  type: MusicAlbum
  date published: 2005-06-01
popularity: 1
genre: late-romantic-era
genre: victorian-britain
genre: operetta
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd83a287ccbdb37f71ba7b98b33b8837264243fb2ac04ecb9e79a2251af1fd77a. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GBLWD0506826.
  date published: 2026-07-31T18:48:12Z
audio: Trial by Jury: That She is Reeling is Plain to See! (Judge, Foreman, Plaintiff, Counsel, Defendant, Usher, Foreman)
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additional property: CopyrightID
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additional property: OTSHash
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  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

Trial by Jury: Oh Joy Unbounded (Plaintiff, Counsel, Defendant, Usher, Judge, Foreman, Chorus)
type: MusicRecording
duration: PT1M51S
duration ms: 111215
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Symphony No. 9 in D Minor, Op. 125 "Choral": II. Molto vivace
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  date published: 2026-06-13T13:32:09Z
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Symphony No. 9 in D Minor, Op. 125, "Choral": IV. Finale. Presto - Allegro assai
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Britten: Billy Budd, Op. 50, Act 1, Scene 1: "Your Name? Billy Budd, Sir" (Claggart, Billy, Redburn, Flint)
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  date published: 2026-07-08T03:53:27Z
audio: Britten: Billy Budd, Op. 50, Act 1, Scene 1: "Your Name? Billy Budd, Sir" (Claggart, Billy, Redburn, Flint)
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Britten: Billy Budd, Op. 50, Act 1, Scene 2: "Mr Redburn and Mr Flint, Sir!" (Boy, Vere, Redburn, Flint)
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audio: Britten: Billy Budd, Op. 50, Act 1, Scene 2: "Mr Redburn and Mr Flint, Sir!" (Boy, Vere, Redburn, Flint)
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Symphony No. 9 in D Minor, Op. 125 "Choral": I. Allegro ma non troppo, un poco maestoso
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  date published: 2026-07-30T09:37:10Z
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Britten: Billy Budd, Op. 50, Act 1, Scene 2: "We Are, Sir, Claggart Is an Able One" (Redburn, Vere, Flint, Sailors, Ratcliffe)
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75295d0b0394b6510c2022f9cf1747c66c26a859f29c011a54e97efcb0f9a19f. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBAYC0801596.
  date published: 2026-07-31T12:24:41Z
audio: Britten: Billy Budd, Op. 50, Act 1, Scene 2: "We Are, Sir, Claggart Is an Able One" (Redburn, Vere, Flint, Sailors, Ratcliffe)
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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isrc code: GBAYC0801596
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T12:24:41+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

Symphony No. 9 in D Minor, Op. 125 "Choral": III. Adagio molto e cantabile - Andante moderato
type: MusicRecording
duration: PT14M12S
duration ms: 852573
explicit: false
by artist: Ludwig van Beethoven
by artist: Helena Juntunen
by artist: Katarina Karnéus
by artist: Daniel Norman
by artist: Neal Davies
by artist: Minnesota Chorale
by artist: Minnesota Orchestra
by artist: Osmo Vänskä
in album: Beethoven, Van L.: Symphony No. 9, "Choral"
  type: MusicAlbum
  date published: 2000-01-01
popularity: 4
genre: classical
genre: classical-piano
genre: chamber-music
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08c3e6c7c905abad767947cfd261489d8a97b461a46dd837def23e2b27c8b3cd. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEQ0616030.
  date published: 2026-07-30T17:23:26Z
audio: Symphony No. 9 in D Minor, Op. 125 "Choral": III. Adagio molto e cantabile - Andante moderato
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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    value: 10
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  additional property: Danceability
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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isrc code: SEAEQ0616030
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T17:23:26+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Britten: Billy Budd, Op. 50, Act 1, Scene 1: "Boat Ahoy" (Maintop, Midshipmen, Flint, Redburn, Bosun, Ratcliffe, Claggart)
type: MusicRecording
duration: PT3M29S
duration ms: 209640
explicit: false
by artist: Benjamin Britten
by artist: Daniel Harding
by artist: Andrew Staples
by artist: Gidon Saks
by artist: Jonathan Lemalu
by artist: Mark Stone
by artist: Matthew Rose
by artist: Neal Davies
by artist: St Luke's Youth Choir
by artist: London Symphony Orchestra
in album: Britten: Billy Budd
  type: MusicAlbum
  date published: 2008-09-12
popularity: 2
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x616baad29167a2374ba098d767159736cd71fd431ef0118907fdd537b8d5761e. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0801584.
  date published: 2026-07-31T02:19:15Z
audio: Britten: Billy Budd, Op. 50, Act 1, Scene 1: "Boat Ahoy" (Maintop, Midshipmen, Flint, Redburn, Bosun, Ratcliffe, Claggart)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 134.102
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.408
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.958
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.007
  additional property: Liveness
    type: PropertyValue
    value: 0.253
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.355
  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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isrc code: GBAYC0801584
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T02:19:15+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

Britten: Billy Budd, Op. 50, Act 1, Scene 1: "First Man Forward! (Claggart, Red Whiskers, Redburn, Flint, Jones)
type: MusicRecording
duration: PT2M10S
duration ms: 130880
explicit: false
by artist: Benjamin Britten
by artist: Daniel Harding
by artist: Alasdair Elliott
by artist: Gidon Saks
by artist: Jonathan Lemalu
by artist: Neal Davies
by artist: Roderick Williams
by artist: London Symphony Orchestra
in album: Britten: Billy Budd
  type: MusicAlbum
  date published: 2008-09-12
popularity: 2
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x052b2c3c53853bb8fe77d3d62809527da90383b5ac626033093d4c65eba42195. Chain 2 (Bitcoin): anchored in block 960306 (2026-07-30T20:23:53Z), 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/GBAYC0801585.
  date published: 2026-07-30T20:23:53Z
audio: Britten: Billy Budd, Op. 50, Act 1, Scene 1: "First Man Forward! (Claggart, Red Whiskers, Redburn, Flint, Jones)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.172
  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: 0.492
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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isrc code: GBAYC0801585
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T20:23:53+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

Britten: Billy Budd, Op. 50, Act 1, Scene 1: "Billy Budd, King of the Birds!" (Billy, Sailors, Flint, Redburn, Ratcliffe, Claggart)
type: MusicRecording
duration: PT2M39S
duration ms: 159826
explicit: false
by artist: Benjamin Britten
by artist: Daniel Harding
by artist: Gidon Saks
by artist: Jonathan Lemalu
by artist: London Symphony Chorus
by artist: Matthew Rose
by artist: Nathan Gunn
by artist: Neal Davies
by artist: London Symphony Orchestra
in album: Britten: Billy Budd
  type: MusicAlbum
  date published: 2008-09-12
popularity: 2
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b58bce1c56530d6f54d3998aea19ad24dc44199989e37375458465b8c58bd9c. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0801587.
  date published: 2026-07-31T00:26:26Z
audio: Britten: Billy Budd, Op. 50, Act 1, Scene 1: "Billy Budd, King of the Birds!" (Billy, Sailors, Flint, Redburn, Ratcliffe, Claggart)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 110.294
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.303
  additional property: Energy
    type: PropertyValue
    value: 0.328
  additional property: Speechiness
    type: PropertyValue
    value: 0.051
  additional property: Acousticness
    type: PropertyValue
    value: 0.912
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.067
  additional property: Liveness
    type: PropertyValue
    value: 0.293
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.382
  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: GBAYC0801587
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
  type: PropertyValue
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additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960327
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T00:26:26+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0801587
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960327
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Britten: Billy Budd, Op. 50, Act 2, Scene 1: "I Don't Like the Look of the Mist" (Vere, Redburn)
type: MusicRecording
duration: PT1M48S
duration ms: 108320
explicit: false
by artist: Benjamin Britten
by artist: Daniel Harding
by artist: Ian Bostridge
by artist: Neal Davies
by artist: London Symphony Orchestra
in album: Britten: Billy Budd
  type: MusicAlbum
  date published: 2008-09-12
popularity: 1
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c9de356c8b38d4cb012abe91e53baf72c5e3a74107ecefe3633e60c1f14e61. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GBAYC0801604.
  date published: 2026-07-31T18:48:12Z
audio: Britten: Billy Budd, Op. 50, Act 2, Scene 1: "I Don't Like the Look of the Mist" (Vere, Redburn)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 107.087
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.409
  additional property: Energy
    type: PropertyValue
    value: 0.074
  additional property: Speechiness
    type: PropertyValue
    value: 0.095
  additional property: Acousticness
    type: PropertyValue
    value: 0.961
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.185
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.095
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.057
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: GBAYC0801604
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: 960448
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T18:48:12+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0801604
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960448
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960448
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T18:48:12+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

Britten: Billy Budd, Op. 50, Act 2, Scene 1: "Deck Ahoy! Enemy Sail on Starboard Bow!" (Maintop, Bosun, Flint, Redburn, Ratcliffe, Sailors, Vere)
type: MusicRecording
duration: PT3M22S
duration ms: 202240
explicit: false
by artist: Benjamin Britten
by artist: Daniel Harding
by artist: Andrew Staples
by artist: Ian Bostridge
by artist: Jonathan Lemalu
by artist: London Symphony Chorus
by artist: Mark Stone
by artist: Matthew Rose
by artist: Neal Davies
by artist: London Symphony Orchestra
in album: Britten: Billy Budd
  type: MusicAlbum
  date published: 2008-09-12
popularity: 1
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46c5af5e6dc6540a730131b8bcdc206bfc2ed176cbbbf9ba3ab83330517592f3. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0801606.
  date published: 2026-07-30T15:42:38Z
audio: Britten: Billy Budd, Op. 50, Act 2, Scene 1: "Deck Ahoy! Enemy Sail on Starboard Bow!" (Maintop, Bosun, Flint, Redburn, Ratcliffe, Sailors, Vere)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 135
  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: 0.337
  additional property: Energy
    type: PropertyValue
    value: 0.442
  additional property: Speechiness
    type: PropertyValue
    value: 0.106
  additional property: Acousticness
    type: PropertyValue
    value: 0.957
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.058
  additional property: Liveness
    type: PropertyValue
    value: 0.492
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.375
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.706
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: GBAYC0801606
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: 960273
additional property: BitcoinTime
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T15:42:38+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Britten: Billy Budd, Op. 50, Act 2, Scene 1: "Volunteers! Call for Boarding Volunteers!" (Vere, Redburn, Donald, Red Whiskers, Dansker, Sailors, Billy, Maintop, Ratcliffe)
type: MusicRecording
duration: PT7M46S
duration ms: 466013
explicit: false
by artist: Benjamin Britten
by artist: Daniel Harding
by artist: Alasdair Elliott
by artist: Andrew Staples
by artist: Daniel Teadt
by artist: Ian Bostridge
by artist: London Symphony Chorus
by artist: Matthew Best
by artist: Matthew Rose
by artist: Nathan Gunn
by artist: Neal Davies
by artist: London Symphony Orchestra
in album: Britten: Billy Budd
  type: MusicAlbum
  date published: 2008-09-12
popularity: 1
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cbb4b718c5f0b7f891c1d5507e000deff8e348646e91201a7b31c971ff13981. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0801607.
  date published: 2026-07-30T16:01:17Z
audio: Britten: Billy Budd, Op. 50, Act 2, Scene 1: "Volunteers! Call for Boarding Volunteers!" (Vere, Redburn, Donald, Red Whiskers, Dansker, Sailors, Billy, Maintop, Ratcliffe)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 110.942
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.234
  additional property: Energy
    type: PropertyValue
    value: 0.33
  additional property: Speechiness
    type: PropertyValue
    value: 0.095
  additional property: Acousticness
    type: PropertyValue
    value: 0.949
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.005
  additional property: Liveness
    type: PropertyValue
    value: 0.249
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.154
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.968
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: GBAYC0801607
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: 960276
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T16:01:17+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0801607
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960276
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960276
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T16:01:17+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Britten: Billy Budd, Op. 50, Act 2, Scene 2: "Gentlemen, William Budd Here Has Killed" (Vere, Redburn, Flint, Ratcliffe)
type: MusicRecording
duration: PT1M23S
duration ms: 83360
explicit: false
by artist: Benjamin Britten
by artist: Daniel Harding
by artist: Ian Bostridge
by artist: Jonathan Lemalu
by artist: Matthew Rose
by artist: Neal Davies
by artist: London Symphony Orchestra
in album: Britten: Billy Budd
  type: MusicAlbum
  date published: 2008-09-12
popularity: 1
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x071ea8e56201656b0d07c404acde5d479b932263f23fe03e9d26609d493e9185. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GBAYC0801613.
  date published: 2026-07-31T18:48:12Z
audio: Britten: Billy Budd, Op. 50, Act 2, Scene 2: "Gentlemen, William Budd Here Has Killed" (Vere, Redburn, Flint, Ratcliffe)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.89
  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: 0.434
  additional property: Energy
    type: PropertyValue
    value: 0.33
  additional property: Speechiness
    type: PropertyValue
    value: 0.093
  additional property: Acousticness
    type: PropertyValue
    value: 0.92
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.007
  additional property: Liveness
    type: PropertyValue
    value: 0.242
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.388
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.92
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: GBAYC0801613
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: 960448
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T18:48:12+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0801613
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960448
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960448
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T18:48:12+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

Danceability
type: PropertyValue
value: 0.584

Energy
type: PropertyValue
value: 0.203

Speechiness
type: PropertyValue
value: 0.187

Acousticness
type: PropertyValue
value: 0.944

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.197

Valence (Positivity)
type: PropertyValue
value: 0.409

Loudness (dB)
type: PropertyValue
value: -22.878

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Major

Janáček: Jenůfa
type: MusicAlbum
date published: 2004-05-01