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genre: classical
description: thumb|Van Zweden in 1981 Jaap van Zweden (; born 12 December 1960) is a Dutch conductor and violinist. He is currently music director of the Seoul Philharmonic and music director-designate of the Or
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subject of: OpenTimestamps Proof of Existence
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album: Tribute to Anatoli Kotchebine
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  date published: 2020-07-09
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    subject of: OpenTimestamps Proof of Existence
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  track: Symphony No. 5 in D Minor, Op. 47: III. Largo
  track: Symphony No. 5 in D Minor, Op. 47: IV. Allegro non troppo
  track: Symphony No. 9 in E-Flat Major, Op. 70: I. Allegro
  track: Symphony No. 9 in E-Flat Major, Op. 70: II. Moderato
  track: Symphony No. 9 in E-Flat Major, Op. 70: III. Presto
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album: Shostakovich & Mahler: Tenth Symphonies
album: Mahler & Shostakovich: Orchestral Works (Live)
album: Brahms: Symphony No. 3
album: Brahms: Symphony No. 4
album: David Lang: prisoner of the state
album: 3rd Symphony
album: Julia Wolfe: Fire in my mouth
album: Stravinsky Le Sacre du printemps; Debussy La Mer
album: Wagner: Der Ring des Nibelungen (Highlights)
album: Wagner: Götterdämmerung, WWV 86D
album: Wagner: Der Ring des Nibelungen
album: Wagner: Siegfried, WWV 86C
album: Wagner: Die Walküre, WWV 86B (Live)
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album: Mahler: Symphony No. 3 in D Minor
album: Wagner: Das Rheingold, WWV 86A
album: Mozart: Sinfonia Concertante - Christopher Rouse: Flute Concerto
album: Dvořák: Symphony No. 9 in E Minor, Op. 95, B. 178 "From the New World" (Live)
album: Bruckner: Symphony No. 1
album: Beethoven Complete Symphonies
album: Mahler: Symphony No. 6
album: Shostakovich: Violin Concerto No. 1 - Rihm: Gesungene Zeit
album: Bruckner: Symphony No. 6
album: Vivaldi: De Vier Jaargetijden (The Four Seasons / Le quattro stagioni)
album: Bruckner: Symphony no. 3
album: Vivaldi & Bach: Viool
album: Bruckner: Symphony No. 8
album: Stucky: August 4, 1964
album: Tchaikovsky: Symphony No. 4 - Suite No. 4, "Mozartiana"
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album: Mozart: Piano Concertos Nos. 22 & 25
album: Vivaldi: Le quattro stagioni (The Four Seasons) - Locatelli: Concerto No. 1 in D
album: ストラヴィンスキー:ペトルーシュカ,プルチネルラ,管楽器のためのシンフォニー
album: ハイドン交響曲集II:交響曲 第 31番 「ホルン信号」、72番&73番「狩」
album: ハイドン交響曲集1:交響曲 第 92番 「オックスフォード」、第 94番 「驚愕」&第 97番
album: Mahler: Symphony No. 5
album: Locatelli: L'arte del violino, Op. III, concertos no. 1, 2, 5 & 6

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subject of: OpenTimestamps Proof of Existence
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subject of: OpenTimestamps Proof of Existence
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Symphony No. 9 in E-Flat Major, Op. 70: II. Moderato
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subject of: OpenTimestamps Proof of Existence
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Symphony No. 9 in E-Flat Major, Op. 70: III. Presto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T13:50:38Z
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Symphony No. 9 in E-Flat Major, Op. 70: IV. Largo
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
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Symphony No. 9 in E-Flat Major, Op. 70: V. Allegretto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Shostakovich & Mahler: Tenth Symphonies
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date published: 2022-11-25

Mahler & Shostakovich: Orchestral Works (Live)
type: MusicAlbum
date published: 2022-11-18

Brahms: Symphony No. 3
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-13T07:53:33Z
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-22T15:38:35Z
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track: Symphony No. 3 in F Major, Op. 90: I. Allegro con brio - Un poco sostenuto - Tempo I (4)
track: Symphony No. 3 in F Major, Op. 90: II. Andante (1)
track: Symphony No. 3 in F Major, Op. 90: II. Andante (2)
track: Symphony No. 3 in F Major, Op. 90: II. Andante (3)
track: Symphony No. 3 in F Major, Op. 90: II. Andante (4)
track: Symphony No. 3 in F Major, Op. 90: III. Poco allegretto (1)
track: Symphony No. 3 in F Major, Op. 90: III. Poco allegretto (2)
track: Symphony No. 3 in F Major, Op. 90: III. Poco allegretto (3)
track: Symphony No. 3 in F Major, Op. 90: IV. Allegro - Un poco sostenuto (1)
track: Symphony No. 3 in F Major, Op. 90: IV. Allegro - Un poco sostenuto (2)
track: Symphony No. 3 in F Major, Op. 90: IV. Allegro - Un poco sostenuto (3)
track: Symphony No. 3 in F Major, Op. 90: IV. Allegro - Un poco sostenuto (4)

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Symphony No. 3 in F Major, Op. 90: II. Andante (4)
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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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad30c69264ea1d76057b279297f1869e541453241adb0e6821b12dbe25a8d611. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332101138 — a six-check JSON result.
  date published: 2026-07-07T18:39:05Z
audio: Symphony No. 3 in F Major, Op. 90: III. Poco allegretto (1)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 167.83
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.082
  additional property: Energy
    type: PropertyValue
    value: 0.038
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.988
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.879
  additional property: Liveness
    type: PropertyValue
    value: 0.315
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.04
  additional property: Loudness (dB)
    type: PropertyValue
    value: -32.024
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Symphony No. 3 in F Major, Op. 90: III. Poco allegretto (2)
type: MusicRecording
duration: PT1M38S
duration ms: 98679
explicit: false
by artist: Johannes Brahms
by artist: Netherlands Philharmonic Orchestra
by artist: Jaap Van Zweden
in album: Brahms: Symphony No. 3
  type: MusicAlbum
  date published: 2021-03-22
popularity: 5
genre: classical
genre: german-romanticism
genre: classical-piano
genre: late-romantic-era
genre: chamber-music
genre: orchestral
isrc code: NLY332101139
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T23:34:46+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6babeacb15793d00a9b79d359429c86546eea516d35023998ea6c066c5ab5e53
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/NLY332101139
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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6babeacb15793d00a9b79d359429c86546eea516d35023998ea6c066c5ab5e53. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332101139 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Symphony No. 3 in F Major, Op. 90: III. Poco allegretto (2)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 145.564
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.157
  additional property: Energy
    type: PropertyValue
    value: 0.003
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.97
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.306
  additional property: Liveness
    type: PropertyValue
    value: 0.191
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.038
  additional property: Loudness (dB)
    type: PropertyValue
    value: -35.45
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Symphony No. 3 in F Major, Op. 90: III. Poco allegretto (3)
type: MusicRecording
duration: PT2M29S
duration ms: 149599
explicit: false
by artist: Johannes Brahms
by artist: Netherlands Philharmonic Orchestra
by artist: Jaap Van Zweden
in album: Brahms: Symphony No. 3
  type: MusicAlbum
  date published: 2021-03-22
popularity: 5
genre: classical
genre: german-romanticism
genre: classical-piano
genre: late-romantic-era
genre: chamber-music
genre: orchestral
isrc code: NLY332101140
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T07:17:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbfda20c2ef2cb1bd2abff5579b9ef92a33c0951578a8c16e16d70ac8003912da
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957041
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957041
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332101140
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T13:25:45Z
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 0xbfda20c2ef2cb1bd2abff5579b9ef92a33c0951578a8c16e16d70ac8003912da. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332101140 — a six-check JSON result.
  date published: 2026-07-07T13:25:45Z
audio: Symphony No. 3 in F Major, Op. 90: III. Poco allegretto (3)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 101.156
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.079
  additional property: Energy
    type: PropertyValue
    value: 0.02
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.986
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.443
  additional property: Liveness
    type: PropertyValue
    value: 0.095
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.039
  additional property: Loudness (dB)
    type: PropertyValue
    value: -30.189
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Symphony No. 3 in F Major, Op. 90: IV. Allegro - Un poco sostenuto (1)
type: MusicRecording
duration: PT2M37S
duration ms: 157710
explicit: false
by artist: Johannes Brahms
by artist: Netherlands Philharmonic Orchestra
by artist: Jaap Van Zweden
in album: Brahms: Symphony No. 3
  type: MusicAlbum
  date published: 2021-03-22
popularity: 4
genre: classical
genre: german-romanticism
genre: classical-piano
genre: late-romantic-era
genre: chamber-music
genre: orchestral
isrc code: NLY332101141
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-22T16:53:18+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfed8e56d61959c5813112d59a8a7c393c9310946aadf2d43e121532b3d6159f4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 959159
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/959159
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332101141
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-22T17:48:40Z
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 0xfed8e56d61959c5813112d59a8a7c393c9310946aadf2d43e121532b3d6159f4. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332101141 — a six-check JSON result.
  date published: 2026-07-22T17:48:40Z
audio: Symphony No. 3 in F Major, Op. 90: IV. Allegro - Un poco sostenuto (1)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 107.567
  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: 0.198
  additional property: Energy
    type: PropertyValue
    value: 0.105
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.981
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.885
  additional property: Liveness
    type: PropertyValue
    value: 0.208
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.196
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.361
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

Symphony No. 3 in F Major, Op. 90: IV. Allegro - Un poco sostenuto (2)
type: MusicRecording
duration: PT2M5S
duration ms: 125661
explicit: false
by artist: Johannes Brahms
by artist: Netherlands Philharmonic Orchestra
by artist: Jaap Van Zweden
in album: Brahms: Symphony No. 3
  type: MusicAlbum
  date published: 2021-03-22
popularity: 4
genre: classical
genre: german-romanticism
genre: classical-piano
genre: late-romantic-era
genre: chamber-music
genre: orchestral
isrc code: NLY332101142
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T03:09:08+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbdcaca0277c10a60a10751374b4e82cd23459a568b42a917c6aba9ba808d9269
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/NLY332101142
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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdcaca0277c10a60a10751374b4e82cd23459a568b42a917c6aba9ba808d9269. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332101142 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Symphony No. 3 in F Major, Op. 90: IV. Allegro - Un poco sostenuto (2)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.233
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.308
  additional property: Energy
    type: PropertyValue
    value: 0.106
  additional property: Speechiness
    type: PropertyValue
    value: 0.033
  additional property: Acousticness
    type: PropertyValue
    value: 0.978
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.943
  additional property: Liveness
    type: PropertyValue
    value: 0.286
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.116
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.869
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Symphony No. 3 in F Major, Op. 90: IV. Allegro - Un poco sostenuto (3)
type: MusicRecording
duration: PT2M33S
duration ms: 153182
explicit: false
by artist: Johannes Brahms
by artist: Netherlands Philharmonic Orchestra
by artist: Jaap Van Zweden
in album: Brahms: Symphony No. 3
  type: MusicAlbum
  date published: 2021-03-22
popularity: 4
genre: classical
genre: german-romanticism
genre: classical-piano
genre: late-romantic-era
genre: chamber-music
genre: orchestral
isrc code: NLY332101143
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T00:20:03+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x11f3dd3799fda57b6fa2dcc9c0adee9689c6bc0872ee8b727cc7d3458846163e
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/NLY332101143
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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f3dd3799fda57b6fa2dcc9c0adee9689c6bc0872ee8b727cc7d3458846163e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332101143 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Symphony No. 3 in F Major, Op. 90: IV. Allegro - Un poco sostenuto (3)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.368
  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: 0.158
  additional property: Energy
    type: PropertyValue
    value: 0.071
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.981
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.94
  additional property: Liveness
    type: PropertyValue
    value: 0.131
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.091
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.197
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Symphony No. 3 in F Major, Op. 90: IV. Allegro - Un poco sostenuto (4)
type: MusicRecording
duration: PT1M50S
duration ms: 110525
explicit: false
by artist: Johannes Brahms
by artist: Netherlands Philharmonic Orchestra
by artist: Jaap Van Zweden
in album: Brahms: Symphony No. 3
  type: MusicAlbum
  date published: 2021-03-22
popularity: 3
genre: classical
genre: german-romanticism
genre: classical-piano
genre: late-romantic-era
genre: chamber-music
genre: orchestral
isrc code: NLY332101144
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T00:18:32+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x70aacfbca56b17ef130b3d949c5311747f25b6091243f4d11e6f6fe1fe011da9
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/NLY332101144
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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70aacfbca56b17ef130b3d949c5311747f25b6091243f4d11e6f6fe1fe011da9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332101144 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Symphony No. 3 in F Major, Op. 90: IV. Allegro - Un poco sostenuto (4)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 95.724
  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: 0.196
  additional property: Energy
    type: PropertyValue
    value: 0.017
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Brahms: Symphony No. 4
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-31T19:53:13Z
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David Lang: prisoner of the state
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  by artist: Julie Mathevet
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-31T19:53:13Z
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3rd Symphony
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date published: 2019-10-21
track: Poco Allegretto
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  by artist: Jaap Van Zweden
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-31T05:17:02Z
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Julia Wolfe: Fire in my mouth
type: MusicAlbum
date published: 2019-08-30

Stravinsky Le Sacre du printemps; Debussy La Mer
type: MusicAlbum
date published: 2019-02-22

Wagner: Der Ring des Nibelungen (Highlights)
type: MusicAlbum
date published: 2018-11-13
track: Das Rheingold, WWV 86A, Scene 1 (Highlights): Vorspiel
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:53:27Z
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track: Die Walküre, WWV 86B, Act III (Highlights): Hojotoho! Hojotoho! "Ride of the Valkyries"
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-30T22:27:30Z
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Wagner: Götterdämmerung, WWV 86D
type: MusicAlbum
date published: 2018-11-09

Wagner: Der Ring des Nibelungen
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date published: 2018-11-09
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:22:41Z
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Wagner: Siegfried, WWV 86C
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  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T14:57:23+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xfd8359638abe897402c2fe6d0c00b8d562a8b49d2cd0d03137d6cbfda80385b3
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960418
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960418
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191713401
  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
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd8359638abe897402c2fe6d0c00b8d562a8b49d2cd0d03137d6cbfda80385b3. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191713401 — a six-check JSON result.
    date published: 2026-07-31T15:20:15Z
  audio: Siegfried, WWV 86C, Act III: Prelude
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 127.878
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.311
    additional property: Energy
      type: PropertyValue
      value: 0.335
    additional property: Speechiness
      type: PropertyValue
      value: 0.038
    additional property: Acousticness
      type: PropertyValue
      value: 0.602
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.899
    additional property: Liveness
      type: PropertyValue
      value: 0.249
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.119
    additional property: Loudness (dB)
      type: PropertyValue
      value: -20.837
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Siegfried, WWV 86C, Act III: Heil dir, Sonne! Heil dir, Licht!
  type: MusicRecording
  duration: PT4M16S
  duration ms: 256053
  explicit: false
  by artist: Richard Wagner
  by artist: Simon O'Neill
  by artist: Heidi Melton
  by artist: Hong Kong Philharmonic Orchestra
  by artist: Jaap Van Zweden
  in album: Wagner: Siegfried, WWV 86C
    type: MusicAlbum
    date published: 2017-11-10
  genre: classical
  genre: opera
  isrc code: HKI191713501
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T19:04:08+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf7b7ec590697622078058cb564f9b3a80c61e146b35f4e2ec78a2e20ea2a97c3
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957124
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957124
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191713501
  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
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b7ec590697622078058cb564f9b3a80c61e146b35f4e2ec78a2e20ea2a97c3. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191713501 — a six-check JSON result.
    date published: 2026-07-08T03:53:27Z
  audio: Siegfried, WWV 86C, Act III: Heil dir, Sonne! Heil dir, Licht!
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 110.311
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.259
    additional property: Energy
      type: PropertyValue
      value: 0.213
    additional property: Speechiness
      type: PropertyValue
      value: 0.047
    additional property: Acousticness
      type: PropertyValue
      value: 0.921
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.023
    additional property: Liveness
      type: PropertyValue
      value: 0.671
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.039
    additional property: Loudness (dB)
      type: PropertyValue
      value: -21.407
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Siegfried, WWV 86C, Act I: Prelude
  type: MusicRecording
  duration: PT4M7S
  duration ms: 247226
  explicit: false
  by artist: Richard Wagner
  by artist: Hong Kong Philharmonic Orchestra
  by artist: Jaap Van Zweden
  in album: Wagner: Siegfried, WWV 86C
    type: MusicAlbum
    date published: 2017-11-10
  genre: classical
  genre: opera
  isrc code: HKI191713201
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-09T18:17:56+00:00
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Siegfried, WWV 86C, Act I: Prelude
track: Siegfried, WWV 86C, Act II: Prelude
track: Siegfried, WWV 86C, Act III: Siegfried! Siegfried! Seliger Held!
track: Siegfried, WWV 86C, Act I: Zwangvolle Plage! Müh' ohne Zweck!
track: Siegfried, WWV 86C, Act I: Hoiho! Hoiho! Hau' ein! Hau' ein!
track: Siegfried, WWV 86C, Act I: Als zullendes Kind zog ich dich auf
track: Siegfried, WWV 86C, Act III: Ewig war ich, ewig bin ich
track: Siegfried, WWV 86C, Act I: Es sangen die Vöglein so selig im Lenz
track: Siegfried, WWV 86C, Act II: Siegfrieds Hornruf - Haha! Da hätte mein Lied
track: Siegfried, WWV 86C, Act I: Notung! Notung! Neidliches Schwert!
track: Siegfried, WWV 86C, Act I: Hoho! Hoho! Hohei! Schmiede, mein Hammer, ein hartes Schwert
track: Siegfried, WWV 86C, Act I: Den der Bruder schuf

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x691e3246c7baddfcb5d31b4ebf37bebdbde6c2b8734c1a956f1926b92eb96855

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 953520

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/953520

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191713201

OTSTimestamp
type: PropertyValue
value: 2026-06-13T13:32:09Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x691e3246c7baddfcb5d31b4ebf37bebdbde6c2b8734c1a956f1926b92eb96855. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191713201 — a six-check JSON result.
date published: 2026-06-13T13:32:09Z

Siegfried, WWV 86C, Act I: Prelude
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 103.991
additional property: Musical Key
  type: PropertyValue
  value: 10
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.103
additional property: Energy
  type: PropertyValue
  value: 0.009
additional property: Speechiness
  type: PropertyValue
  value: 0.039
additional property: Acousticness
  type: PropertyValue
  value: 0.933
additional property: Instrumentalness
  type: PropertyValue
  value: 0.973
additional property: Liveness
  type: PropertyValue
  value: 0.115
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.047
additional property: Loudness (dB)
  type: PropertyValue
  value: -35.226
additional property: Key Name
  type: PropertyValue
  value: Bb
additional property: Mode Name
  type: PropertyValue
  value: Minor

Siegfried, WWV 86C, Act II: Prelude
type: MusicRecording
duration: PT5M18S
duration ms: 318266
explicit: false
by artist: Richard Wagner
by artist: Hong Kong Philharmonic Orchestra
by artist: Jaap Van Zweden
in album: Wagner: Siegfried, WWV 86C
  type: MusicAlbum
  date published: 2017-11-10
genre: classical
genre: opera
isrc code: HKI191713301
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T09:19:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xaade7599fe269e9a59580c7c401edc6e00a5db2940ad424b5386f6b5d6a746cc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191713301
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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 0xaade7599fe269e9a59580c7c401edc6e00a5db2940ad424b5386f6b5d6a746cc. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191713301 — a six-check JSON result.
  date published: 2026-07-02T03:55:08Z
audio: Siegfried, WWV 86C, Act II: Prelude
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 89.887
  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: 0.166
  additional property: Energy
    type: PropertyValue
    value: 0.002
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.887
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.943
  additional property: Liveness
    type: PropertyValue
    value: 0.114
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.037
  additional property: Loudness (dB)
    type: PropertyValue
    value: -35.225
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Siegfried, WWV 86C, Act III: Siegfried! Siegfried! Seliger Held!
type: MusicRecording
duration: PT6M46S
duration ms: 406773
explicit: false
by artist: Richard Wagner
by artist: Simon O'Neill
by artist: Heidi Melton
by artist: Hong Kong Philharmonic Orchestra
by artist: Jaap Van Zweden
in album: Wagner: Siegfried, WWV 86C
  type: MusicAlbum
  date published: 2017-11-10
genre: classical
genre: opera
isrc code: HKI191713502
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T08:08:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x89dc9d1600122aa3d4d301b212a03904dd4547dbc395f7e2d974b8b0f0fb9f3f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191713502
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
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 0x89dc9d1600122aa3d4d301b212a03904dd4547dbc395f7e2d974b8b0f0fb9f3f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191713502 — a six-check JSON result.
  date published: 2026-07-02T03:30:09Z
audio: Siegfried, WWV 86C, Act III: Siegfried! Siegfried! Seliger Held!
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 119.771
  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: 0.28
  additional property: Energy
    type: PropertyValue
    value: 0.154
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.948
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.182
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.064
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.293
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Siegfried, WWV 86C, Act I: Zwangvolle Plage! Müh' ohne Zweck!
type: MusicRecording
duration: PT3M35S
duration ms: 215333
explicit: false
by artist: Richard Wagner
by artist: David Cangelosi
by artist: Hong Kong Philharmonic Orchestra
by artist: Jaap Van Zweden
in album: Wagner: Siegfried, WWV 86C
  type: MusicAlbum
  date published: 2017-11-10
genre: classical
genre: opera
isrc code: HKI191713202
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T07:46:18+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xff4ea5851c8778061f6ff8c966d8aa968033c5147f6903002738829d13f17d9a
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/HKI191713202
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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff4ea5851c8778061f6ff8c966d8aa968033c5147f6903002738829d13f17d9a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191713202 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Siegfried, WWV 86C, Act I: Zwangvolle Plage! Müh' ohne Zweck!
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 130.327
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.387
  additional property: Energy
    type: PropertyValue
    value: 0.194
  additional property: Speechiness
    type: PropertyValue
    value: 0.068
  additional property: Acousticness
    type: PropertyValue
    value: 0.655
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.629
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.078
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.032
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Siegfried, WWV 86C, Act I: Hoiho! Hoiho! Hau' ein! Hau' ein!
type: MusicRecording
duration: PT4M0S
duration ms: 240533
explicit: false
by artist: Richard Wagner
by artist: Simon O'Neill
by artist: David Cangelosi
by artist: Hong Kong Philharmonic Orchestra
by artist: Jaap Van Zweden
in album: Wagner: Siegfried, WWV 86C
  type: MusicAlbum
  date published: 2017-11-10
genre: classical
genre: opera
isrc code: HKI191713203
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T11:05:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc14016fa4be2d629ffac29d023b8eb9a830cbdf1974f710ea674c70edb4d6b6c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960397
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960397
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191713203
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T12:24:41Z
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 0xc14016fa4be2d629ffac29d023b8eb9a830cbdf1974f710ea674c70edb4d6b6c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191713203 — a six-check JSON result.
  date published: 2026-07-31T12:24:41Z
audio: Siegfried, WWV 86C, Act I: Hoiho! Hoiho! Hau' ein! Hau' ein!
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 115.502
  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: 0.397
  additional property: Energy
    type: PropertyValue
    value: 0.242
  additional property: Speechiness
    type: PropertyValue
    value: 0.081
  additional property: Acousticness
    type: PropertyValue
    value: 0.889
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.666
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.469
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.138
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Siegfried, WWV 86C, Act I: Als zullendes Kind zog ich dich auf
type: MusicRecording
duration: PT5M23S
duration ms: 323480
explicit: false
by artist: Richard Wagner
by artist: Simon O'Neill
by artist: David Cangelosi
by artist: Hong Kong Philharmonic Orchestra
by artist: Jaap Van Zweden
in album: Wagner: Siegfried, WWV 86C
  type: MusicAlbum
  date published: 2017-11-10
genre: classical
genre: opera
isrc code: HKI191713204
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T16:28:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x64627cd9ada1195d8baa83d90ae01f5b371047e362fca296a1ba33ca2b4866ae
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960441
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960441
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191713204
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T17:29:52Z
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 0x64627cd9ada1195d8baa83d90ae01f5b371047e362fca296a1ba33ca2b4866ae. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191713204 — a six-check JSON result.
  date published: 2026-07-31T17:29:52Z
audio: Siegfried, WWV 86C, Act I: Als zullendes Kind zog ich dich auf
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 136.13
  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: 0.402
  additional property: Energy
    type: PropertyValue
    value: 0.088
  additional property: Speechiness
    type: PropertyValue
    value: 0.073
  additional property: Acousticness
    type: PropertyValue
    value: 0.854
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.604
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.26
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.162
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Siegfried, WWV 86C, Act III: Ewig war ich, ewig bin ich
type: MusicRecording
duration: PT4M35S
duration ms: 275520
explicit: false
by artist: Richard Wagner
by artist: Simon O'Neill
by artist: Heidi Melton
by artist: Hong Kong Philharmonic Orchestra
by artist: Jaap Van Zweden
in album: Wagner: Siegfried, WWV 86C
  type: MusicAlbum
  date published: 2017-11-10
genre: classical
genre: opera
isrc code: HKI191713505
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T09:20:35+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5221fba029eb180e4c7c317d44efedbf384cbc5606519acaa283d8d369df06e1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191713505
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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 0x5221fba029eb180e4c7c317d44efedbf384cbc5606519acaa283d8d369df06e1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191713505 — a six-check JSON result.
  date published: 2026-07-02T03:55:08Z
audio: Siegfried, WWV 86C, Act III: Ewig war ich, ewig bin ich
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 109.145
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.207
  additional property: Energy
    type: PropertyValue
    value: 0.125
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.969
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.149
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.039
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.267
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Siegfried, WWV 86C, Act I: Es sangen die Vöglein so selig im Lenz
type: MusicRecording
duration: PT5M11S
duration ms: 311573
explicit: false
by artist: Richard Wagner
by artist: Simon O'Neill
by artist: David Cangelosi
by artist: Hong Kong Philharmonic Orchestra
by artist: Jaap Van Zweden
in album: Wagner: Siegfried, WWV 86C
  type: MusicAlbum
  date published: 2017-11-10
genre: classical
genre: opera
isrc code: HKI191713205
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T17:05:02+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x053598e41f3874032c2f2d8f4009092637c073f3d7f2d1180e6f911baafa444a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960441
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960441
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191713205
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T17:29:52Z
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 0x053598e41f3874032c2f2d8f4009092637c073f3d7f2d1180e6f911baafa444a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191713205 — a six-check JSON result.
  date published: 2026-07-31T17:29:52Z
audio: Siegfried, WWV 86C, Act I: Es sangen die Vöglein so selig im Lenz
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 108.522
  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: 0.318
  additional property: Energy
    type: PropertyValue
    value: 0.131
  additional property: Speechiness
    type: PropertyValue
    value: 0.058
  additional property: Acousticness
    type: PropertyValue
    value: 0.934
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.64
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.212
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.666
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Siegfried, WWV 86C, Act II: Siegfrieds Hornruf - Haha! Da hätte mein Lied
type: MusicRecording
duration: PT5M23S
duration ms: 323413
explicit: false
by artist: Richard Wagner
by artist: Simon O'Neill
by artist: Falk Struckmann
by artist: Hong Kong Philharmonic Orchestra
by artist: Jaap Van Zweden
in album: Wagner: Siegfried, WWV 86C
  type: MusicAlbum
  date published: 2017-11-10
genre: classical
genre: opera
isrc code: HKI191713307
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T20:18:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdfd958d137c4f244abcd33937f3d90828bb44cb1ed67ae6ac09435d978b3d812
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960463
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960463
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191713307
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T20:42:35Z
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 0xdfd958d137c4f244abcd33937f3d90828bb44cb1ed67ae6ac09435d978b3d812. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191713307 — a six-check JSON result.
  date published: 2026-07-31T20:42:35Z
audio: Siegfried, WWV 86C, Act II: Siegfrieds Hornruf - Haha! Da hätte mein Lied
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 115.617
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.278
  additional property: Energy
    type: PropertyValue
    value: 0.202
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.913
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.003
  additional property: Liveness
    type: PropertyValue
    value: 0.104
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.068
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.43
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Siegfried, WWV 86C, Act I: Notung! Notung! Neidliches Schwert!
type: MusicRecording
duration: PT8M4S
duration ms: 484320
explicit: false
by artist: Richard Wagner
by artist: Simon O'Neill
by artist: David Cangelosi
by artist: Hong Kong Philharmonic Orchestra
by artist: Jaap Van Zweden
in album: Wagner: Siegfried, WWV 86C
  type: MusicAlbum
  date published: 2017-11-10
genre: classical
genre: opera
isrc code: HKI191713215
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T18:20:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8a61995068f726f82006d262d08c2b050208ce828798dcc9676240a797f664b8
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: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191713215
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T18:48:12Z
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 0x8a61995068f726f82006d262d08c2b050208ce828798dcc9676240a797f664b8. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191713215 — a six-check JSON result.
  date published: 2026-07-31T18:48:12Z
audio: Siegfried, WWV 86C, Act I: Notung! Notung! Neidliches Schwert!
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 108.532
  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: 0.268
  additional property: Energy
    type: PropertyValue
    value: 0.175
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.879
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.527
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.298
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.819
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Siegfried, WWV 86C, Act I: Hoho! Hoho! Hohei! Schmiede, mein Hammer, ein hartes Schwert
type: MusicRecording
duration: PT3M2S
duration ms: 182133
explicit: false
by artist: Richard Wagner
by artist: Simon O'Neill
by artist: David Cangelosi
by artist: Hong Kong Philharmonic Orchestra
by artist: Jaap Van Zweden
in album: Wagner: Siegfried, WWV 86C
  type: MusicAlbum
  date published: 2017-11-10
genre: classical
genre: opera
isrc code: HKI191713216
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T17:15:42+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6a14a1f1cb945f7527ca47ceeb3f1174032067da36be59f59aab6a3a5d10c78d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191713216
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
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 0x6a14a1f1cb945f7527ca47ceeb3f1174032067da36be59f59aab6a3a5d10c78d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191713216 — a six-check JSON result.
  date published: 2026-07-08T03:22:41Z
audio: Siegfried, WWV 86C, Act I: Hoho! Hoho! Hohei! Schmiede, mein Hammer, ein hartes Schwert
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 129.791
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.483
  additional property: Energy
    type: PropertyValue
    value: 0.274
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.906
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.124
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.484
  additional property: Loudness (dB)
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Wagner: Die Walküre, WWV 86B (Live)
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    date published: 2026-07-29T19:35:34Z
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  audio: Violin Concerto No. 1 in E Major, RV 269 "La Primavera" (Spring): III. Allegro, Danza Pastorale
track: Violin Concerto No. 2 in G Minor, RV 315 "L’Estate" (Summer): I. Allegro non molto
track: Violin Concerto No. 2 in G Minor, RV 315 "L’Estate" (Summer): II. Adagio
track: Violin Concerto No. 2 in G Minor, RV 315 "L’Estate" (Summer): III. Presto, tempo impetuoso d’estate
track: Violin Concerto No. 3 in F Major, RV 293 "L’Autunno" (Autumn): I. Allegro
track: Violin Concerto No. 3 in F Major, RV 293 "L’Autunno" (Autumn): II. Adagio molto
track: Violin Concerto No. 3 in F Major, RV 293 "L’Autunno" (Autumn): III. Allegro, ‘Caccia’
track: Violin Concerto No. 4 in F Minor, RV 297 "L’Inverno" (Winter): I. Allegro non molto
track: Violin Concerto No. 4 in F Minor, RV 297 "L’Inverno" (Winter): II. Largo
track: Violin Concerto No. 4 in F Minor, RV 297 "L’Inverno" (Winter): III. Allegro
track: Sonata in E-Flat Major “Al Santo Sepolcro” RV 130: I. Largo molto
track: Sonata in E-Flat Major “Al Santo Sepolcro” RV 130: II. Allegro
track: Concerto in G Minor, RV 157: I. Allegro
track: Concerto in G Minor, RV 157: II. Largo
track: Concerto in G Minor, RV 157: III. Allegro
track: Concerto in B-Flat Major, RV 163: I. Allegro non molto
track: Concerto in B-Flat Major, RV 163: II. Largo
track: Concerto in B-Flat Major, RV 163: III. Allegro, Danza Pastorale

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Violin Concerto No. 2 in G Minor, RV 315 "L’Estate" (Summer): III. Presto, tempo impetuoso d’estate
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-22T13:34:27Z
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Violin Concerto No. 3 in F Major, RV 293 "L’Autunno" (Autumn): I. Allegro
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by artist: Combattimento Consort Amsterdam
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genre: classical
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-13T07:53:33Z
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Violin Concerto No. 3 in F Major, RV 293 "L’Autunno" (Autumn): II. Adagio molto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T23:52:38Z
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Violin Concerto No. 3 in F Major, RV 293 "L’Autunno" (Autumn): III. Allegro, ‘Caccia’
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by artist: Combattimento Consort Amsterdam
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T04:47:22Z
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Violin Concerto No. 4 in F Minor, RV 297 "L’Inverno" (Winter): I. Allegro non molto
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popularity: 16
genre: classical
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T13:32:09Z
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Violin Concerto No. 4 in F Minor, RV 297 "L’Inverno" (Winter): II. Largo
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T19:35:34Z
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Violin Concerto No. 4 in F Minor, RV 297 "L’Inverno" (Winter): III. Allegro
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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 0xc1130e85acc559399f96d43ef7ffc203c841821b8cd6097798435036fcddd221. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB151600435 — a six-check JSON result.
  date published: 2026-07-29T11:30:20Z
audio: Violin Concerto No. 4 in F Minor, RV 297 "L’Inverno" (Winter): III. Allegro
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  additional property: Valence (Positivity)
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Sonata in E-Flat Major “Al Santo Sepolcro” RV 130: I. Largo molto
type: MusicRecording
duration: PT2M20S
duration ms: 140200
explicit: false
by artist: Antonio Vivaldi
by artist: Jaap Van Zweden
by artist: Jan Willem de Vriend
by artist: Combattimento Consort Amsterdam
in album: The Four Seasons
  type: MusicAlbum
  date published: 2016-09-16
popularity: 4
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: NLB151600436
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/NLB151600436
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 0x49be3f8b38b649203923239a581513a83034c048c31ace733718b3ee9f517d42. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB151600436 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Sonata in E-Flat Major “Al Santo Sepolcro” RV 130: I. Largo molto
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  additional property: Danceability
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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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  additional property: Mode Name
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Sonata in E-Flat Major “Al Santo Sepolcro” RV 130: II. Allegro
type: MusicRecording
duration: PT1M37S
duration ms: 97893
explicit: false
by artist: Antonio Vivaldi
by artist: Jaap Van Zweden
by artist: Jan Willem de Vriend
by artist: Combattimento Consort Amsterdam
in album: The Four Seasons
  type: MusicAlbum
  date published: 2016-09-16
popularity: 4
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: NLB151600437
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T13:11:15+00:00
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/NLB151600437
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T14:36:16Z
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 0x288d56b3e55466b3f1f852f56e4a035047f7f7c8b56d95af22e12cfe13336861. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB151600437 — a six-check JSON result.
  date published: 2026-07-30T14:36:16Z
audio: Sonata in E-Flat Major “Al Santo Sepolcro” RV 130: II. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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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
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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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: Mode Name
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Concerto in G Minor, RV 157: I. Allegro
type: MusicRecording
duration: PT1M57S
duration ms: 117786
explicit: false
by artist: Antonio Vivaldi
by artist: Jaap Van Zweden
by artist: Jan Willem de Vriend
by artist: Combattimento Consort Amsterdam
in album: The Four Seasons
  type: MusicAlbum
  date published: 2016-09-16
popularity: 4
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: NLB151600438
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T08:44:16+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x481c8f5c9a64633bfc09a3179e6a2cbd52fdeb20f74671ad40ce3f88ea41b0ea
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960236
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB151600438
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T09:37:10Z
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 0x481c8f5c9a64633bfc09a3179e6a2cbd52fdeb20f74671ad40ce3f88ea41b0ea. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB151600438 — a six-check JSON result.
  date published: 2026-07-30T09:37:10Z
audio: Concerto in G Minor, RV 157: I. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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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
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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)
    type: PropertyValue
    value: -21.864
  additional property: Key Name
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  additional property: Mode Name
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Concerto in G Minor, RV 157: II. Largo
type: MusicRecording
duration: PT1M35S
duration ms: 95266
explicit: false
by artist: Antonio Vivaldi
by artist: Jaap Van Zweden
by artist: Jan Willem de Vriend
by artist: Combattimento Consort Amsterdam
in album: The Four Seasons
  type: MusicAlbum
  date published: 2016-09-16
popularity: 4
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: NLB151600439
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
  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/NLB151600439
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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11ad4b6b97c741486ef5f37528decba350f6e822894ea7f2cf07377e57b0a5fa. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB151600439 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Concerto in G Minor, RV 157: II. Largo
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 86.559
  additional property: Musical Key
    type: PropertyValue
    value: 7
  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
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0.124
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.075
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.352
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
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Concerto in G Minor, RV 157: III. Allegro
type: MusicRecording
duration: PT2M7S
duration ms: 127840
explicit: false
by artist: Antonio Vivaldi
by artist: Jaap Van Zweden
by artist: Jan Willem de Vriend
by artist: Combattimento Consort Amsterdam
in album: The Four Seasons
  type: MusicAlbum
  date published: 2016-09-16
popularity: 4
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: NLB151600440
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T06:08:03+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x3bf4b0f6200c6aaff8b2b7df484f715748a77b7664e24b4ac6aa47bf571a2d3c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960216
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB151600440
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T06:39:12Z
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 0x3bf4b0f6200c6aaff8b2b7df484f715748a77b7664e24b4ac6aa47bf571a2d3c. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB151600440 — a six-check JSON result.
  date published: 2026-07-30T06:39:12Z
audio: Concerto in G Minor, RV 157: III. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 138.038
  additional property: Musical Key
    type: PropertyValue
    value: 7
  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
    value: 0.751
  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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  additional property: Mode Name
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Concerto in B-Flat Major, RV 163: I. Allegro non molto
type: MusicRecording
duration: PT1M57S
duration ms: 117826
explicit: false
by artist: Antonio Vivaldi
by artist: Jaap Van Zweden
by artist: Jan Willem de Vriend
by artist: Combattimento Consort Amsterdam
in album: The Four Seasons
  type: MusicAlbum
  date published: 2016-09-16
popularity: 4
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: NLB151600441
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T07:29:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x146fd368c89383b376e315a8185948702e56358c16997014036a83b0f3efb22a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960222
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960222
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB151600441
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T07:48:45Z
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 0x146fd368c89383b376e315a8185948702e56358c16997014036a83b0f3efb22a. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB151600441 — a six-check JSON result.
  date published: 2026-07-30T07:48:45Z
audio: Concerto in B-Flat Major, RV 163: I. Allegro non molto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 130.415
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  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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Concerto in B-Flat Major, RV 163: II. Largo
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subject of: OpenTimestamps Proof of Existence
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Concerto in B-Flat Major, RV 163: III. Allegro, Danza Pastorale
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subject of: OpenTimestamps Proof of Existence
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Mahler: Symphony No. 3 in D Minor
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-31T22:27:44Z
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
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Wagner: Das Rheingold, WWV 86A
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Mozart: Sinfonia Concertante - Christopher Rouse: Flute Concerto
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-14T18:13:17Z
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Dvořák: Symphony No. 9 in E Minor, Op. 95, B. 178 "From the New World" (Live)
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Bruckner: Symphony No. 1
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Beethoven Complete Symphonies
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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 0x56d94e7ea89fc5658fade8c24cca304d2c3ce1f9aa4356c3749e77a1ebd5a2cd. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE070300076 — a six-check JSON result.
    date published: 2026-07-31T13:04:34Z
  audio: Symphony No. 7 in A, Op. 92: 2. Allegretto
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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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)
      type: PropertyValue
      value: -31.641
    additional property: Key Name
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      value: G
    additional property: Mode Name
      type: PropertyValue
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track: Symphony No. 9 in D minor, Op. 125 - "Choral": 1. Allegro ma non troppo, un poco maestoso
  type: MusicRecording
  duration: PT14M36S
  duration ms: 876973
  explicit: false
  by artist: Ludwig van Beethoven
  by artist: Residentie Orkest
  by artist: Jaap Van Zweden
  in album: Beethoven Complete Symphonies
    type: MusicAlbum
    date published: 2014-01-01
  genre: classical
  genre: classical-piano
  genre: chamber-music
  isrc code: NLE070300088
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T18:19:02+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x77df3e61f563ea29375531d26b575955d4fd43f68bbe0d5f9a0865f9b5f70e66
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE070300088
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  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 0x77df3e61f563ea29375531d26b575955d4fd43f68bbe0d5f9a0865f9b5f70e66. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE070300088 — a six-check JSON result.
    date published: 2026-07-08T03:22:41Z
  audio: Symphony No. 9 in D minor, Op. 125 - "Choral": 1. Allegro ma non troppo, un poco maestoso
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.261
    additional property: Energy
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    additional property: Speechiness
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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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      value: 0.129
    additional property: Loudness (dB)
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    additional property: Key Name
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Mahler: Symphony No. 6
type: MusicAlbum
date published: 2013-10-29

Shostakovich: Violin Concerto No. 1 - Rihm: Gesungene Zeit
type: MusicAlbum
date published: 2013-10-01

Bruckner: Symphony No. 6
type: MusicAlbum
date published: 2013-05-17

Vivaldi: De Vier Jaargetijden (The Four Seasons / Le quattro stagioni)
type: MusicAlbum
date published: 2013-01-14
track: Le quattro stagioni (The Four Seasons), Concertos No. 1-4, Op. 8
  type: MusicRecording
  duration: PT40M15S
  duration ms: 2415113
  explicit: false
  by artist: Antonio Vivaldi
  by artist: Amadeus Ensemble
  by artist: Jaap Van Zweden
  in album: Vivaldi: De Vier Jaargetijden (The Four Seasons / Le quattro stagioni)
    type: MusicAlbum
    date published: 2013-01-14
  genre: classical
  genre: early-music
  genre: baroque
  genre: concerto
  isrc code: NLHR51383326
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-20T08:09:19+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0a784069dede26e7d0fe4de9e8481ceeedd2b549db04a8b71f9e5af066711611
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956302
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956302
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLHR51383326
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  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 0x0a784069dede26e7d0fe4de9e8481ceeedd2b549db04a8b71f9e5af066711611. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLHR51383326 — a six-check JSON result.
    date published: 2026-07-02T03:30:09Z
  audio: Le quattro stagioni (The Four Seasons), Concertos No. 1-4, Op. 8
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
      type: PropertyValue
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    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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      value: -22.77
    additional property: Key Name
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      value: F
    additional property: Mode Name
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      value: Major
track: Concerto in G Minor, for Oboe, Strings & Harpsichord, RV 460
  type: MusicRecording
  duration: PT11M8S
  duration ms: 668757
  explicit: false
  by artist: Antonio Vivaldi
  by artist: Amadeus Ensemble
  by artist: Jaap Van Zweden
  by artist: Han De Vries
  in album: Vivaldi: De Vier Jaargetijden (The Four Seasons / Le quattro stagioni)
    type: MusicAlbum
    date published: 2013-01-14
  genre: classical
  genre: early-music
  genre: baroque
  genre: concerto
  isrc code: NLHR51383327
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-22T14:39:36+00:00
  additional property: CopyrightChainExplorerURL
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    value: https://explorer.copyrightchains.com/tx/0x1c6a06054d21e11940d2744758863f705a0d725e74b7e64d8ec7e39982dfdba1
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/959144
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLHR51383327
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-22T15:38:35Z
  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 0x1c6a06054d21e11940d2744758863f705a0d725e74b7e64d8ec7e39982dfdba1. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLHR51383327 — a six-check JSON result.
    date published: 2026-07-22T15:38:35Z
  audio: Concerto in G Minor, for Oboe, Strings & Harpsichord, RV 460
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
      type: PropertyValue
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    additional property: Energy
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    additional property: Speechiness
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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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      value: -23.007
    additional property: Key Name
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    additional property: Mode Name
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track: Concerto in A Minor for Violin, Oboe, Strings & Harpsichord, RV 522
  type: MusicRecording
  duration: PT10M57S
  duration ms: 657468
  explicit: false
  by artist: Antonio Vivaldi
  by artist: Amadeus Ensemble
  by artist: Jaap Van Zweden
  by artist: Han De Vries
  in album: Vivaldi: De Vier Jaargetijden (The Four Seasons / Le quattro stagioni)
    type: MusicAlbum
    date published: 2013-01-14
  genre: classical
  genre: early-music
  genre: baroque
  genre: concerto
  isrc code: NLHR51383328
  additional property: CopyrightID
  additional property: CopyrightStatus
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Concerto in A Minor for Violin, Oboe, Strings & Harpsichord, RV 522

CopyrightID
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CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-06-27T07:05:14+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xf85230e2a33f78fb1393fab48b974ccca02600bdbdcaab1723a6909fd789a795

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 956304

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/956304

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLHR51383328

OTSTimestamp
type: PropertyValue
value: 2026-07-02T03:55:08Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf85230e2a33f78fb1393fab48b974ccca02600bdbdcaab1723a6909fd789a795. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLHR51383328 — a six-check JSON result.
date published: 2026-07-02T03:55:08Z

Concerto in A Minor for Violin, Oboe, Strings & Harpsichord, RV 522
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 141.138
additional property: Musical Key
  type: PropertyValue
  value: 9
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.386
additional property: Energy
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additional property: Speechiness
  type: PropertyValue
  value: 0.048
additional property: Acousticness
  type: PropertyValue
  value: 0.956
additional property: Instrumentalness
  type: PropertyValue
  value: 0.794
additional property: Liveness
  type: PropertyValue
  value: 0.354
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.089
additional property: Loudness (dB)
  type: PropertyValue
  value: -22.878
additional property: Key Name
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additional property: Mode Name
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Bruckner: Symphony no. 3
type: MusicAlbum
date published: 2013-01-11
track: Symphony no. 3 in d minor: Gemäßigt, mehr bewegt, misterioso
  type: MusicRecording
  duration: PT22M5S
  duration ms: 1325640
  explicit: false
  by artist: Anton Bruckner
  by artist: Jaap Van Zweden
  by artist: Netherlands Radio Philharmonic Orchestra
  in album: Bruckner: Symphony no. 3
    type: MusicAlbum
    date published: 2013-01-11
  genre: classical
  genre: orchestra
  isrc code: NLB151201131
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T09:00:38+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x2291349649f4afb168f7bc050094a563ffefb2ab59ab73b0efeab8d42dcab533
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957073
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957073
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB151201131
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-07T18:39:05Z
  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 0x2291349649f4afb168f7bc050094a563ffefb2ab59ab73b0efeab8d42dcab533. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB151201131 — a six-check JSON result.
    date published: 2026-07-07T18:39:05Z
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    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.186
    additional property: Energy
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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)
      type: PropertyValue
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    additional property: Key Name
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    additional property: Mode Name
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track: Symphony no. 3 in d minor: Andante. Bewegt, feierlich, quasi Adagio
  type: MusicRecording
  duration: PT16M2S
  duration ms: 962053
  explicit: false
  by artist: Anton Bruckner
  by artist: Jaap Van Zweden
  by artist: Netherlands Radio Philharmonic Orchestra
  in album: Bruckner: Symphony no. 3
    type: MusicAlbum
    date published: 2013-01-11
  genre: classical
  genre: orchestra
  isrc code: NLB151201132
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
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  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x820207d05509bf0c757cca4016357c94c82df8225f605960a4477c47980700a3
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960212
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB151201132
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T05:43:45Z
  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
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    encoding format: application/vnd.opentimestamps.ots
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    date published: 2026-07-30T05:43:45Z
  audio: Symphony no. 3 in d minor: Andante. Bewegt, feierlich, quasi Adagio
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    additional property: Instrumentalness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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track: Symphony no. 3 in d minor: Scherzo. Zienlich schnell
  type: MusicRecording
  duration: PT7M7S
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  by artist: Anton Bruckner
  by artist: Jaap Van Zweden
  by artist: Netherlands Radio Philharmonic Orchestra
  in album: Bruckner: Symphony no. 3
    type: MusicAlbum
    date published: 2013-01-11
  genre: classical
  genre: orchestra
  isrc code: NLB151201133
  additional property: CopyrightID
  additional property: CopyrightStatus
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  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Symphony no. 3 in d minor: Scherzo. Zienlich schnell
track: Symphony no. 3 in d minor: Finale. Allegro

CopyrightChainExplorerURL
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value: https://explorer.copyrightchains.com/tx/0xcc6b9c1f5b2b5cf21a5e165dd64fd27161736a4b66817f8c89622c6e580d46ad

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 960264

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960264

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB151201133

OTSTimestamp
type: PropertyValue
value: 2026-07-30T14:36:16Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc6b9c1f5b2b5cf21a5e165dd64fd27161736a4b66817f8c89622c6e580d46ad. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB151201133 — a six-check JSON result.
date published: 2026-07-30T14:36:16Z

Symphony no. 3 in d minor: Scherzo. Zienlich schnell
type: AudioObject
additional property: Tempo (BPM)
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additional property: Musical Key
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additional property: Mode (Major/Minor)
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additional property: Time Signature
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additional property: Danceability
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additional property: Energy
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additional property: Speechiness
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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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additional property: Mode Name
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Symphony no. 3 in d minor: Finale. Allegro
type: MusicRecording
duration: PT14M17S
duration ms: 857746
explicit: false
by artist: Anton Bruckner
by artist: Jaap Van Zweden
by artist: Netherlands Radio Philharmonic Orchestra
in album: Bruckner: Symphony no. 3
  type: MusicAlbum
  date published: 2013-01-11
genre: classical
genre: orchestra
isrc code: NLB151201134
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x0a6925c76ed758551a40f78172e4e5c9beb822ef6b3d65652a48bf650a9fd879
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960209
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB151201134
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T05:15:54Z
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 0x0a6925c76ed758551a40f78172e4e5c9beb822ef6b3d65652a48bf650a9fd879. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB151201134 — a six-check JSON result.
  date published: 2026-07-30T05:15:54Z
audio: Symphony no. 3 in d minor: Finale. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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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: Mode Name
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Vivaldi & Bach: Viool
type: MusicAlbum
date published: 2013-01-08

Bruckner: Symphony No. 8
type: MusicAlbum
date published: 2012-06-08

Stucky: August 4, 1964
type: MusicAlbum
date published: 2012-06-05

Tchaikovsky: Symphony No. 4 - Suite No. 4, "Mozartiana"
type: MusicAlbum
date published: 2012-04-01
track: Symphony No. 4 in F Minor, Op. 36: I. Andante sostenuto - Moderato con anima
  type: MusicRecording
  duration: PT17M12S
  duration ms: 1032346
  explicit: false
  by artist: Pyotr Ilyich Tchaikovsky
  by artist: Dallas Symphony Orchestra
  by artist: Jaap Van Zweden
  in album: Tchaikovsky: Symphony No. 4 - Suite No. 4, "Mozartiana"
    type: MusicAlbum
    date published: 2012-04-01
  isrc code: USB8U1039630
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-30T21:30:29+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa30b7ab34cc89afef6ae82aeb4fe1c35ba26d2ead24a3651703ecf22aa051388
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960321
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1039630
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T22:27:30Z
  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 0xa30b7ab34cc89afef6ae82aeb4fe1c35ba26d2ead24a3651703ecf22aa051388. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1039630 — a six-check JSON result.
    date published: 2026-07-30T22:27:30Z
  audio: Symphony No. 4 in F Minor, Op. 36: I. Andante sostenuto - Moderato con anima
    type: AudioObject
    additional property: Tempo (BPM)
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      value: 103.891
    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.137
    additional property: Energy
      type: PropertyValue
      value: 0.026
    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
      type: PropertyValue
      value: 0.903
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.631
    additional property: Liveness
      type: PropertyValue
      value: 0.099
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.082
    additional property: Loudness (dB)
      type: PropertyValue
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    additional property: Key Name
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    additional property: Mode Name
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track: Symphony No. 4 in F Minor, Op. 36: II. Andantino in modo di canzone
  type: MusicRecording
  duration: PT8M43S
  duration ms: 523840
  explicit: false
  by artist: Pyotr Ilyich Tchaikovsky
  by artist: Dallas Symphony Orchestra
  by artist: Jaap Van Zweden
  in album: Tchaikovsky: Symphony No. 4 - Suite No. 4, "Mozartiana"
    type: MusicAlbum
    date published: 2012-04-01
  isrc code: USB8U1039631
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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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
    type: PropertyValue
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1039631
  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
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a5aecd2d88e10b45062ff4fdb5147229d5d36e2a11e852e89ad414ec546c920. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1039631 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Symphony No. 4 in F Minor, Op. 36: II. Andantino in modo di canzone
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Mode (Major/Minor)
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    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
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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)
      type: PropertyValue
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    additional property: Key Name
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    additional property: Mode Name
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track: Symphony No. 4 in F Minor, Op. 36: III. Scherzo: Pizzicato ostinato
  type: MusicRecording
  duration: PT5M35S
  duration ms: 335666
  explicit: false
  by artist: Pyotr Ilyich Tchaikovsky
  by artist: Dallas Symphony Orchestra
  by artist: Jaap Van Zweden
  in album: Tchaikovsky: Symphony No. 4 - Suite No. 4, "Mozartiana"
    type: MusicAlbum
    date published: 2012-04-01
  isrc code: USB8U1039632
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: CopyrightRegisteredAt
    type: PropertyValue
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  additional property: CopyrightChainExplorerURL
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    value: https://explorer.copyrightchains.com/tx/0x21c6dbc6cf1644cd2e733e71e8b2f9974302ed655f9c8a39321df8b004c8a118
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960340
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Symphony No. 4 in F Minor, Op. 36: III. Scherzo: Pizzicato ostinato
track: Symphony No. 4 in F Minor, Op. 36: IV. Finale: Allegro con fuoco
track: Suite No. 4 in G Major, Op. 61, "Mozartiana": I. Gigue
track: Suite No. 4 in G Major, Op. 61, "Mozartiana": II. Menuet
track: Suite No. 4 in G Major, Op. 61, "Mozartiana": III. Preghiera
track: Suite No. 4 in G Major, Op. 61, "Mozartiana": IV. Finale: Allegro con fuoco

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960340

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1039632

OTSTimestamp
type: PropertyValue
value: 2026-07-31T03:15:04Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c6dbc6cf1644cd2e733e71e8b2f9974302ed655f9c8a39321df8b004c8a118. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1039632 — a six-check JSON result.
date published: 2026-07-31T03:15:04Z

Symphony No. 4 in F Minor, Op. 36: III. Scherzo: Pizzicato ostinato
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 157.496
additional property: Musical Key
  type: PropertyValue
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additional property: Mode (Major/Minor)
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additional property: Time Signature
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additional property: Danceability
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additional property: Energy
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additional property: Speechiness
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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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additional property: Mode Name
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Symphony No. 4 in F Minor, Op. 36: IV. Finale: Allegro con fuoco
type: MusicRecording
duration: PT7M43S
duration ms: 463866
explicit: false
by artist: Pyotr Ilyich Tchaikovsky
by artist: Dallas Symphony Orchestra
by artist: Jaap Van Zweden
in album: Tchaikovsky: Symphony No. 4 - Suite No. 4, "Mozartiana"
  type: MusicAlbum
  date published: 2012-04-01
isrc code: USB8U1039633
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T02:43:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xaee25a5de276311d3e0897e60d6b1b59295e06770b8c01e05de8f20fa71b9c19
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960339
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1039633
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T03:13:37Z
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 0xaee25a5de276311d3e0897e60d6b1b59295e06770b8c01e05de8f20fa71b9c19. Chain 2 (Bitcoin): anchored in block 960339 (2026-07-31T03:13:37Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1039633 — a six-check JSON result.
  date published: 2026-07-31T03:13:37Z
audio: Symphony No. 4 in F Minor, Op. 36: IV. Finale: Allegro con fuoco
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
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  additional property: Danceability
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  additional property: Energy
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Suite No. 4 in G Major, Op. 61, "Mozartiana": I. Gigue
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duration: PT1M34S
duration ms: 94333
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by artist: Andrés Cárdenes
by artist: Dallas Symphony Orchestra
by artist: Jaap Van Zweden
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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
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dba5132fa59b761e101eaf217baa3c27043f2d4f8a780d757291f6e07553dd6. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1039634 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
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Suite No. 4 in G Major, Op. 61, "Mozartiana": II. Menuet
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duration: PT3M45S
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explicit: false
by artist: Pyotr Ilyich Tchaikovsky
by artist: Andrés Cárdenes
by artist: Dallas Symphony Orchestra
by artist: Jaap Van Zweden
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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
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Suite No. 4 in G Major, Op. 61, "Mozartiana": III. Preghiera
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duration: PT4M16S
duration ms: 256906
explicit: false
by artist: Pyotr Ilyich Tchaikovsky
by artist: Andrés Cárdenes
by artist: Dallas Symphony Orchestra
by artist: Jaap Van Zweden
in album: Tchaikovsky: Symphony No. 4 - Suite No. 4, "Mozartiana"
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additional property: CopyrightID
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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
  type: DigitalDocument
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  date published: 2026-07-08T03:20:19Z
audio: Suite No. 4 in G Major, Op. 61, "Mozartiana": III. Preghiera
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Suite No. 4 in G Major, Op. 61, "Mozartiana": IV. Finale: Allegro con fuoco
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duration: PT14M34S
duration ms: 874773
explicit: false
by artist: Pyotr Ilyich Tchaikovsky
by artist: Andrés Cárdenes
by artist: Dallas Symphony Orchestra
by artist: Jaap Van Zweden
in album: Tchaikovsky: Symphony No. 4 - Suite No. 4, "Mozartiana"
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isrc code: USB8U1039637
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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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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  date published: 2026-07-31T19:53:13Z
audio: Suite No. 4 in G Major, Op. 61, "Mozartiana": IV. Finale: Allegro con fuoco
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Beethoven: Symphonies Nos. 5 & 7
type: MusicAlbum
date published: 2012-04-01

Wagner: Parsifal
type: MusicAlbum
date published: 2011-05-29
track: ACT I: Vorspiel
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  by artist: Richard Wagner
  by artist: Jaap Van Zweden
  by artist: Netherlands Radio Choir
  by artist: State Male Choir 'Latvija'
  by artist: Klaus Florian Vogt
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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
    type: DigitalDocument
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f4c65c64004ffb8f4094eddc76a40a5cf28e55ac13488d75d53779145202894. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB151100478 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
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track: ACT I: Nun achte wohl und laß mich seh’n
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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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    date published: 2026-07-08T03:20:19Z
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track: ACT I: Wein und Brot des letzten Mahles
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  subject of: OpenTimestamps Proof of Existence
  audio: ACT I: Wein und Brot des letzten Mahles

Falk Struckmann
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Netherlands Radio Philharmonic Orchestra
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Wagner: Parsifal
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OTSBitcoinBlock
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value: 960494

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960494

OTSVerificationAPI
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value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB151100491

OTSTimestamp
type: PropertyValue
value: 2026-08-01T01:44:32Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e7844a6f490488981480bdb75e8b2c23ac38839dc86c59286dc0997b44cda5. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB151100491 — a six-check JSON result.
date published: 2026-08-01T01:44:32Z

ACT I: Wein und Brot des letzten Mahles
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additional property: Tempo (BPM)
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additional property: Musical Key
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additional property: Mode (Major/Minor)
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additional property: Speechiness
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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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Brahms: Symphonies Complete
type: MusicAlbum
date published: 2011
track: Symphony No. 1 in C Minor, Op. 68: I. Un poco sostenuto - Allegro - Meno allegro
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  by artist: Netherlands Philharmonic Orchestra
  by artist: Jaap Van Zweden
  in album: Brahms: Symphonies Complete
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    date published: 2011
  popularity: 1
  genre: classical
  genre: german-romanticism
  genre: classical-piano
  genre: late-romantic-era
  genre: chamber-music
  genre: orchestral
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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/NLY331108995
  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 0xa3fe245247e298084cd2c34aa2c6c0aba38a892ecb4074c1488adf571ceb89e8. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331108995 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
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    type: AudioObject
    additional property: Tempo (BPM)
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track: Symphony No. 3 in F Major, Op. 90: III. Poco allegretto
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  by artist: Netherlands Philharmonic Orchestra
  by artist: Jaap Van Zweden
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    type: MusicAlbum
    date published: 2011
  popularity: 18
  genre: classical
  genre: german-romanticism
  genre: classical-piano
  genre: late-romantic-era
  genre: chamber-music
  genre: orchestral
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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 0x9fea696bd87520256982403fff2771b7bc075da647d2ddd5d23ece27a197f16f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331109005 — a six-check JSON result.
    date published: 2026-07-02T03:30:09Z
  audio: Symphony No. 3 in F Major, Op. 90: III. Poco allegretto
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Danceability
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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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Mozart: Piano Concertos Nos. 22 & 25
type: MusicAlbum
date published: 2010-11-22
track: Mozart: Piano Concerto No. 22 in E-Flat Major, K. 482: I. Allegro
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  duration: PT13M2S
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  by artist: Wolfgang Amadeus Mozart
  by artist: David Fray
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  by artist: Philharmonia Orchestra
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    type: MusicAlbum
    date published: 2010-11-22
  genre: classical
  genre: classical-era
  genre: classical-piano
  genre: opera
  genre: chamber-music
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  isrc code: GBAYC1002075
  additional property: CopyrightID
  additional property: CopyrightStatus
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  additional property: OTSBitcoinBlock
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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 0x1aa8da590755730becf99677744a84837d8009c986afe1c3ecdfec70a7d92ec4. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1002075 — a six-check JSON result.
    date published: 2026-07-29T19:35:34Z
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    additional property: Danceability
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    additional property: Key Name
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track: Mozart: Piano Concerto No. 22 in E-Flat Major, K. 482: II. Andante
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  by artist: Wolfgang Amadeus Mozart
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  by artist: Jaap Van Zweden
  by artist: Philharmonia Orchestra
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  genre: classical
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  genre: classical-piano
  genre: opera
  genre: chamber-music
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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
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    date published: 2026-07-07T16:54:37Z
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  by artist: Wolfgang Amadeus Mozart
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    date published: 2010-11-22
  genre: classical
  genre: classical-era
  genre: classical-piano
  genre: opera
  genre: chamber-music
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  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
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  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Mozart: Piano Concerto No. 22 in E-Flat Major, K. 482: III. Allegro
track: Mozart: Piano Concerto No. 25 in C Major, K. 503: I. Allegro maestoso
track: Mozart: Piano Concerto No. 25 in C Major, K. 503: II. Andante
track: Mozart: Piano Concerto No. 25 in C Major, K. 503: III. Allegretto

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CopyrightChainExplorerURL
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OTSHash
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OTSBitcoinBlock
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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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OTSTimestamp
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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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf28dc1772fbcd9969c47e14da1984f07be49701d553ebad65f46e8d882148361. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1002077 — a six-check JSON result.
date published: 2026-07-07T14:04:01Z

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Mozart: Piano Concerto No. 25 in C Major, K. 503: I. Allegro maestoso
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duration: PT14M45S
duration ms: 885106
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by artist: Wolfgang Amadeus Mozart
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by artist: Jaap Van Zweden
by artist: Philharmonia Orchestra
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  date published: 2010-11-22
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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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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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T07:53:57Z
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Mozart: Piano Concerto No. 25 in C Major, K. 503: II. Andante
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by artist: Jaap Van Zweden
by artist: Philharmonia Orchestra
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T19:35:34Z
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Mozart: Piano Concerto No. 25 in C Major, K. 503: III. Allegretto
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T15:42:38Z
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Vivaldi: Le quattro stagioni (The Four Seasons) - Locatelli: Concerto No. 1 in D
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date published: 2009-01-14
track: Le quattro stagioni (The Four Seasons), Concerto No. 4 'L'inverno (Winter) in F Minor, Op. 8, RV 297: I. Allegro non molto
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T03:55:08Z
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ストラヴィンスキー:ペトルーシュカ,プルチネルラ,管楽器のためのシンフォニー
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-31T22:27:44Z
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-29T19:35:34Z
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ハイドン交響曲集II:交響曲 第 31番 「ホルン信号」、72番&73番「狩」
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ハイドン交響曲集1:交響曲 第 92番 「オックスフォード」、第 94番 「驚愕」&第 97番
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date published: 2008-12-12

Mahler: Symphony No. 5
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date published: 2008-06-01

Wagner: Siegfried, WWV 86C
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date published: 2017-11-10

Locatelli: L'arte del violino, Op. III, concertos no. 1, 2, 5 & 6
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