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type: MusicGroup
genre: gregorian chant
popularity: 11
followers: 163
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additional property: CopyrightChainExplorerURL
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additional property: OTSProofURL
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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 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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-15T11:52:51Z
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album: 100 Best Classical Composers
  type: MusicAlbum
  date published: 2012-10-29
  track: Tallis: Spem in alium
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    duration: PT10M18S
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    by artist: Taverner Choir
    by artist: Wim Becu
    by artist: Paul Nicholson
    by artist: Alan Wilson
    by artist: Andrew Parrott
    by artist: Taverner Consort
    in album: 100 Best Classical Composers
      type: MusicAlbum
      date published: 2012-10-29
    popularity: 2
    genre: choral
    isrc code: GBAYC8601755
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    additional property: OTSVerificationAPI
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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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e067a26c98d3f3655bcbd8e1e698067ac8820f39a00c38ac1f287dfea88b85. 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/GBAYC8601755.
      date published: 2026-07-08T03:20:19Z
    audio: Tallis: Spem in alium
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  track: Mozart: Piano Concerto No. 21 in C Major, K. 467: II. Andante
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    popularity: 2
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    genre: classical-era
    genre: classical-piano
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    genre: chamber-music
    genre: concerto
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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 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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
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      date published: 2026-07-08T03:20:19Z
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  track: Verdi: Nabucco, Act 3: "Va, pensiero, sull'ali dorate" (Chorus)
  track: Beethoven: Symphony No. 5 in C Minor, Op. 67: I. Allegro con brio
  track: Lachrimae, or Seaven Teares: Semper Dowland Semper Dolens
  track: Allegri: Miserere mei, Deus
  track: Rossini: Guillaume Tell: Overture. Andante - Allegro (Excerpt, Conclusion)
  track: Pachelbel: Canon and Gigue for Three Violins and Continuo in D Major: Canon
  track: Schubert: Schwanengesang, D. 957: No. 4, Ständchen (Arr. for Cello and Piano)
  track: Purcell: Abdelazer, Z. 570: II. Rondeau
  track: Giazzotto: Adagio for Strings and Organ in G Minor, "Albinoni's Adagio" (Arr. for Trumpet)
  track: Vivaldi: The Four Seasons, Violin Concerto in E Major, Op. 8 No. 1, RV 269 "Spring": I. Allegro
  track: Les Indes galantes : Les Sauvages - Danse du Calumet de la Paix et duo Forêts paisibles
  track: Handel / Orch. Hale: Keyboard Suite No. 4 in D Minor, HWV 437: III. Sarabande
album: Catalogue 2004
album: Antologia Polifonii Renesansowej
album: German Baroque Sacred Music: Christmas
album: Gabrieli: Sacrae Sympnoniae
album: Trombone Grande: Music for Bass Sackbut around 1600
album: Paradisi porte: Hans Memling's Angelic Concert
album: Sonar cantando
album: Coronation Music for Charles II
album: Lambert De Sayve: Sacred Music - Priuli & Gabrieli: Canzonas & Sonata (VRT Muziek Edition)
album: Sonar Cantando (VRT Muziek Edition)
album: Scheidt: Ludi musici (Excerpts)
album: Johann Sebastian Bach: Die Kunst der Fuga (A Soundtrack by Joris Verdin)

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Valence (Positivity)
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Loudness (dB)
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value: -35.855

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Verdi: Nabucco, Act 3: "Va, pensiero, sull'ali dorate" (Chorus)
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duration: PT5M12S
duration ms: 312660
explicit: false
by artist: Giuseppe Verdi
by artist: Riccardo Muti
by artist: Philharmonia Orchestra
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  type: MusicAlbum
  date published: 2012-10-29
popularity: 1
genre: classical
genre: opera
isrc code: GBAYC8600472
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additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c8c5977aaf1ba60a843634d796b8bb31cd7c76916cd7a0a129a572b3a658695. 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/GBAYC8600472.
  date published: 2026-07-08T03:20:19Z
audio: Verdi: Nabucco, Act 3: "Va, pensiero, sull'ali dorate" (Chorus)
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Beethoven: Symphony No. 5 in C Minor, Op. 67: I. Allegro con brio
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by artist: Ludwig van Beethoven
by artist: London Classical Players
by artist: Sir Roger Norrington
in album: 100 Best Classical Composers
  type: MusicAlbum
  date published: 2012-10-29
popularity: 2
genre: classical
genre: classical-piano
genre: chamber-music
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additional property: CopyrightStatus
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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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x256fe43e45cbe64ca733f5c23a573a77e2d90e9668f8607d06686f3b63acb9e0. 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/GBAYC8804146.
  date published: 2026-07-08T03:20:19Z
audio: Beethoven: Symphony No. 5 in C Minor, Op. 67: I. Allegro con brio
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Lachrimae, or Seaven Teares: Semper Dowland Semper Dolens
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by artist: Emma Kirkby
by artist: Anthony Rooley
in album: 100 Best Classical Composers
  type: MusicAlbum
  date published: 2012-10-29
popularity: 1
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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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295144e9b21edad29f1753c4942328a3a9d7ffd79b7a72c819ba1204ef301304. 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/GBAYC8805990.
  date published: 2026-07-08T03:20:19Z
audio: Lachrimae, or Seaven Teares: Semper Dowland Semper Dolens
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Allegri: Miserere mei, Deus
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by artist: Choir of King's College, Cambridge
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by artist: Stephen Cleobury
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  date published: 2012-10-29
popularity: 1
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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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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  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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Allegri: Miserere mei, Deus
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Rossini: Guillaume Tell: Overture. Andante - Allegro (Excerpt, Conclusion)
type: MusicRecording
duration: PT3M17S
duration ms: 197173
explicit: false
by artist: Gioachino Rossini
by artist: Sir Roger Norrington
by artist: London Classical Players
in album: 100 Best Classical Composers
  type: MusicAlbum
  date published: 2012-10-29
popularity: 2
genre: classical
genre: opera
isrc code: GBAYC9006246
additional property: CopyrightID
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9006246
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf518ab6c5eb4224ef3c616dd442a66c3c6ab27874ed660d3ba94529d8da04b94. 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/GBAYC9006246.
  date published: 2026-07-08T03:20:19Z
audio: Rossini: Guillaume Tell: Overture. Andante - Allegro (Excerpt, Conclusion)
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Pachelbel: Canon and Gigue for Three Violins and Continuo in D Major: Canon
type: MusicRecording
duration: PT3M41S
duration ms: 221293
explicit: false
by artist: Johann Pachelbel
by artist: Taverner Players
by artist: Andrew Parrott
in album: 100 Best Classical Composers
  type: MusicAlbum
  date published: 2012-10-29
popularity: 2
isrc code: GBAYC8702056
additional property: CopyrightID
additional property: CopyrightStatus
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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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  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8702056
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-08T03:20:19Z
audio: Pachelbel: Canon and Gigue for Three Violins and Continuo in D Major: Canon
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Schubert: Schwanengesang, D. 957: No. 4, Ständchen (Arr. for Cello and Piano)
type: MusicRecording
duration: PT4M42S
duration ms: 282013
explicit: false
by artist: Franz Schubert
by artist: Gautier Capuçon
by artist: Franck Braley
in album: 100 Best Classical Composers
  type: MusicAlbum
  date published: 2012-10-29
popularity: 2
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: GBAYC0800669
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99955a49434d3ef094a9ecb10614ceb5496cec844389966c99aca1e3a7acb03d. 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/GBAYC0800669.
  date published: 2026-07-08T03:53:27Z
audio: Schubert: Schwanengesang, D. 957: No. 4, Ständchen (Arr. for Cello and Piano)
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  additional property: Mode (Major/Minor)
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Purcell: Abdelazer, Z. 570: II. Rondeau
type: MusicRecording
duration: PT1M36S
duration ms: 96040
explicit: false
by artist: Henry Purcell
by artist: Andrew Parrott
by artist: Taverner Players
in album: 100 Best Classical Composers
  type: MusicAlbum
  date published: 2012-10-29
popularity: 1
genre: classical
genre: choral
isrc code: GBAYC8703951
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x398339c28a2d9052b93e13797ae2ec5a6cb5907c5db8c9c990c981e2235281f2. 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/GBAYC8703951.
  date published: 2026-07-08T03:20:19Z
audio: Purcell: Abdelazer, Z. 570: II. Rondeau
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Giazzotto: Adagio for Strings and Organ in G Minor, "Albinoni's Adagio" (Arr. for Trumpet)
type: MusicRecording
duration: PT7M40S
duration ms: 460026
explicit: false
by artist: Tomaso Albinoni
by artist: Jonathan Rees
by artist: Scottish Ensemble
in album: 100 Best Classical Composers
  type: MusicAlbum
  date published: 2012-10-29
popularity: 2
genre: classical
isrc code: GBAYC9006813
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
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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/GBAYC9006813
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:20:15Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7a8c6d00dced9bfcfac23adc1d42ce98820e6cfeb30f94fbea9c2c2977203e2. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBAYC9006813.
  date published: 2026-07-31T15:20:15Z
audio: Giazzotto: Adagio for Strings and Organ in G Minor, "Albinoni's Adagio" (Arr. for Trumpet)
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  additional property: Musical Key
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
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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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  additional property: Key Name
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Vivaldi: The Four Seasons, Violin Concerto in E Major, Op. 8 No. 1, RV 269 "Spring": I. Allegro
type: MusicRecording
duration: PT3M3S
duration ms: 183706
explicit: false
by artist: Antonio Vivaldi
by artist: Europa Galante
by artist: Fabio Biondi
in album: 100 Best Classical Composers
  type: MusicAlbum
  date published: 2012-10-29
popularity: 1
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: GBAYC0003248
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0529ddc62dcb8f6aa65f91c588446703c29fe49faecf596ab200c7a2a6570923. 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/GBAYC0003248.
  date published: 2026-07-08T03:20:19Z
audio: Vivaldi: The Four Seasons, Violin Concerto in E Major, Op. 8 No. 1, RV 269 "Spring": I. Allegro
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Handel / Orch. Hale: Keyboard Suite No. 4 in D Minor, HWV 437: III. Sarabande
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Catalogue 2004
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Antologia Polifonii Renesansowej
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German Baroque Sacred Music: Christmas
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Gabrieli: Sacrae Sympnoniae
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Trombone Grande: Music for Bass Sackbut around 1600
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Paradisi porte: Hans Memling's Angelic Concert
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Sonar cantando
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Coronation Music for Charles II
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Lambert De Sayve: Sacred Music - Priuli & Gabrieli: Canzonas & Sonata (VRT Muziek Edition)
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Sonar Cantando (VRT Muziek Edition)
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Scheidt: Ludi musici (Excerpts)
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Johann Sebastian Bach: Die Kunst der Fuga (A Soundtrack by Joris Verdin)
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