Anton Martynov
type: MusicGroup
popularity: 15
followers: 124
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa8cb43643399334c32f515ba9a72b4d7d19071f7190b01678aa43c71ae2f3bfb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953817
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953817
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fd79a018-46bd-4fa9-bb5c-f65bfa4781dd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fd79a018-46bd-4fa9-bb5c-f65bfa4781dd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fd79a018-46bd-4fa9-bb5c-f65bfa4781dd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T18:10:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa8cb43643399334c32f515ba9a72b4d7d19071f7190b01678aa43c71ae2f3bfb","name":"Anton Martynov","registered_at":"2026-06-15T07:07:36Z","symbol":"NIM0720095","token_address":"0xfc1dada48eb2af0f2c4a0831273a9ec1240cd4b9","type":"artist","uuid":"fd79a018-46bd-4fa9-bb5c-f65bfa4781dd"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8cb43643399334c32f515ba9a72b4d7d19071f7190b01678aa43c71ae2f3bfb. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fd79a018-46bd-4fa9-bb5c-f65bfa4781dd.json and https://artists.proofprofile.net/proofs/artist/fd79a018-46bd-4fa9-bb5c-f65bfa4781dd.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-15T18:10:31Z
  text: {"copyright_id":"0xa8cb43643399334c32f515ba9a72b4d7d19071f7190b01678aa43c71ae2f3bfb","name":"Anton Martynov","registered_at":"2026-06-15T07:07:36Z","symbol":"NIM0720095","token_address":"0xfc1dada48eb2af0f2c4a0831273a9ec1240cd4b9","type":"artist","uuid":"fd79a018-46bd-4fa9-bb5c-f65bfa4781dd"}
album: Sardelli: Baroque Concertos, Psalm, Chamber Music
  type: MusicAlbum
  date published: 2013-09-20
  track: Psalm 69, Domine ad adjuvandum me: I. Domine ad adjuvandum me. Allegro molto
    type: MusicRecording
    duration: PT2M25S
    duration ms: 145160
    explicit: false
    by artist: Federico Maria Sardelli
    by artist: Modo Antiquo
    by artist: Roberta Mameli
    in album: Sardelli: Baroque Concertos, Psalm, Chamber Music
      type: MusicAlbum
      date published: 2013-09-20
    isrc code: NLY331307883
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-30T15:29:14+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa10038af5c2b5a4d7320f8f844393020d76345c816a7bdfa34befc6990a99e11
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 960273
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/960273
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331307883
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-30T15:42:38Z
    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 0xa10038af5c2b5a4d7320f8f844393020d76345c816a7bdfa34befc6990a99e11. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331307883 — a six-check JSON result.
      date published: 2026-07-30T15:42:38Z
    audio: Psalm 69, Domine ad adjuvandum me: I. Domine ad adjuvandum me. Allegro molto
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 147.459
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.349
      additional property: Energy
        type: PropertyValue
        value: 0.348
      additional property: Speechiness
        type: PropertyValue
        value: 0.061
      additional property: Acousticness
        type: PropertyValue
        value: 0.951
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.086
      additional property: Liveness
        type: PropertyValue
        value: 0.245
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.295
      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.947
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
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  track: Psalm 69, Domine ad adjuvandum me: II. Sicut erat in principio. Andante molto
    type: MusicRecording
    duration: PT3M42S
    duration ms: 222200
    explicit: false
    by artist: Federico Maria Sardelli
    by artist: Modo Antiquo
    by artist: Roberta Mameli
    in album: Sardelli: Baroque Concertos, Psalm, Chamber Music
      type: MusicAlbum
      date published: 2013-09-20
    isrc code: NLY331307884
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-31T01:03:17+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe2d01ede26e8b283011f1ededb9154f588798701322c476e50fc8ea5b85c0440
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 960334
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/960334
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331307884
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-31T02:19:15Z
    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 0xe2d01ede26e8b283011f1ededb9154f588798701322c476e50fc8ea5b85c0440. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331307884 — a six-check JSON result.
      date published: 2026-07-31T02:19:15Z
    audio: Psalm 69, Domine ad adjuvandum me: II. Sicut erat in principio. Andante molto
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 129.474
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
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        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.335
      additional property: Energy
        type: PropertyValue
        value: 0.088
      additional property: Speechiness
        type: PropertyValue
        value: 0.045
      additional property: Acousticness
        type: PropertyValue
        value: 0.983
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.006
      additional property: Liveness
        type: PropertyValue
        value: 0.366
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
  track: Psalm 69, Domine ad adjuvandum me: IV. Amen. Allegro assai
  track: Concerto in G Minor: I. Allegro
  track: Concerto in B Minor: I. Allegro ma poco
  track: Concerto in B Minor: III. Allegro
  track: Concerto in G Minor: I. Andante molto
  track: Concerto in G Minor: III. Allegro ma poco
  track: Fuga del sepolcro in A Minor
  track: Fuga postale in G Major
  track: Suite de pièces pour le clavecin: II. Le plaintif
album: Vivaldi: La stravaganza, Op. 4
album: Music for Two, Vol. 2 (Jean-Marie Leclair Sonate for Two Violins Op. 3 Anton Martynov Baroque Suite Nr.2)
album: Music for Two
album: Martha Argerich and Friends Live from the Lugano Festival 2016
album: Violino d'amore (Concerti di Antonio Vivaldi, Federico Maria Sardelli, Anton Martynov, Gianluca Bersanetti)
album: Italian Violin Concertos
album: Open Air Tango

Valence (Positivity)
type: PropertyValue
value: 0.111

Loudness (dB)
type: PropertyValue
value: -20.051

Key Name
type: PropertyValue
value: B

Mode Name
type: PropertyValue
value: Minor

Psalm 69, Domine ad adjuvandum me: IV. Amen. Allegro assai
type: MusicRecording
duration: PT1M51S
duration ms: 111800
explicit: false
by artist: Federico Maria Sardelli
by artist: Modo Antiquo
by artist: Roberta Mameli
in album: Sardelli: Baroque Concertos, Psalm, Chamber Music
  type: MusicAlbum
  date published: 2013-09-20
isrc code: NLY331307886
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T15:51:10+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xedeb46cb9b2399b63bef6f7c81345b8d1855354a72f801ee0ce1dc45754d4146
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/NLY331307886
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 0xedeb46cb9b2399b63bef6f7c81345b8d1855354a72f801ee0ce1dc45754d4146. 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/NLY331307886 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Psalm 69, Domine ad adjuvandum me: IV. Amen. Allegro assai
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.952
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.444
  additional property: Energy
    type: PropertyValue
    value: 0.204
  additional property: Speechiness
    type: PropertyValue
    value: 0.051
  additional property: Acousticness
    type: PropertyValue
    value: 0.986
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.157
  additional property: Liveness
    type: PropertyValue
    value: 0.101
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.379
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.316
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Concerto in G Minor: I. Allegro
type: MusicRecording
duration: PT4M4S
duration ms: 244040
explicit: false
by artist: Federico Maria Sardelli
by artist: Modo Antiquo
by artist: Paolo Pollastri
in album: Sardelli: Baroque Concertos, Psalm, Chamber Music
  type: MusicAlbum
  date published: 2013-09-20
isrc code: NLY331307887
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T04:06:17+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x682bbeb4bbd9a5f5ad5611bb5876f8b39c78cc6fc0b2283797e7014a44025f94
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/NLY331307887
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 0x682bbeb4bbd9a5f5ad5611bb5876f8b39c78cc6fc0b2283797e7014a44025f94. 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/NLY331307887 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Concerto in G Minor: I. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 141.354
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.356
  additional property: Energy
    type: PropertyValue
    value: 0.429
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.956
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.719
  additional property: Liveness
    type: PropertyValue
    value: 0.142
  additional property: Valence (Positivity)
    type: PropertyValue
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
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Concerto in B Minor: I. Allegro ma poco
type: MusicRecording
duration: PT5M5S
duration ms: 305053
explicit: false
by artist: Federico Maria Sardelli
by artist: Modo Antiquo
by artist: Anton Martynov
in album: Sardelli: Baroque Concertos, Psalm, Chamber Music
  type: MusicAlbum
  date published: 2013-09-20
isrc code: NLY331307890
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T21:25:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x70097105e4d13e2f8ddfb75c36e7fa7bd05d6fd598875c5225649f882bba3417
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/NLY331307890
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 0x70097105e4d13e2f8ddfb75c36e7fa7bd05d6fd598875c5225649f882bba3417. 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/NLY331307890 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Concerto in B Minor: I. Allegro ma poco
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 115.723
  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: 0.402
  additional property: Energy
    type: PropertyValue
    value: 0.218
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.951
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.051
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
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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 Minor: III. Allegro
type: MusicRecording
duration: PT3M11S
duration ms: 191893
explicit: false
by artist: Federico Maria Sardelli
by artist: Modo Antiquo
by artist: Anton Martynov
in album: Sardelli: Baroque Concertos, Psalm, Chamber Music
  type: MusicAlbum
  date published: 2013-09-20
isrc code: NLY331307892
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T00:13:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1dafe247400c9aa18944b897e1a262b0eeba1bc8011d8e76f91c42dc826e7488
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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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/NLY331307892
additional property: OTSTimestamp
  type: PropertyValue
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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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Concerto in G Minor: I. Andante molto
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Concerto in G Minor: III. Allegro ma poco
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T09:50:37Z
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Fuga del sepolcro in A Minor
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Fuga postale in G Major
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by artist: Modo Antiquo
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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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Suite de pièces pour le clavecin: II. Le plaintif
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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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Vivaldi: La stravaganza, Op. 4
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track: Violin Concerto in D Major, Op. 4 No. 11, RV 204: II. Largo
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:39:04Z
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Music for Two, Vol. 2 (Jean-Marie Leclair Sonate for Two Violins Op. 3 Anton Martynov Baroque Suite Nr.2)
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Music for Two
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date published: 2016-08-25

Martha Argerich and Friends Live from the Lugano Festival 2016
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date published: 2017-09-01
track: Ravel: Gaspard de la nuit, M. 55: I. Ondine (Live)
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  genre: impressionism
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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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track: Mozart: Sonata for 2 Pianos in D Major, K. 448: I. Allegro con spirito (Live)
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    date published: 2017-09-01
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  genre: opera
  genre: chamber-music
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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
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    date published: 2026-07-02T03:55:08Z
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  by artist: Wolfgang Amadeus Mozart
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  in album: Martha Argerich and Friends Live from the Lugano Festival 2016
    type: MusicAlbum
    date published: 2017-09-01
  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: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Mozart: Sonata for 2 Pianos in D Major, K. 448: II. Andante (Live)
track: Mozart: Sonata for 2 Pianos in D Major, K. 448: III. Molto allegro (Live)
track: Falla / Arr. Lafitte: La vida breve: Danza española No. 1
track: Ravel: Piano Concerto in G Major, M. 83: II. Adagio assai (Live)
track: Ravel: Piano Concerto in G Major, M. 83: III. Presto (Live)
track: Beethoven: Fantasia in C Minor, Op. 80, "Choral Fantasy": I. Adagio (Live)
track: Beethoven: Choral Fantasy, Op. 80: II. Finale (Allegro - Meno allegro - Allegro)
track: Brahms: Trio in E-Flat Major, Op. 40: IV. Finale (Allegro con brio)
track: Bach, JS: Violin Sonata No. 4 in C Minor, BWV 1017: I. Largo (Live)

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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
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description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9574732b3eae3a2d4ccb5c45dbd9a476ffaa44f6b73457b2e558362d46d31e5a. 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/CH8291700725 — a six-check JSON result.
date published: 2026-07-02T03:55:08Z

Mozart: Sonata for 2 Pianos in D Major, K. 448: II. Andante (Live)
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Mozart: Sonata for 2 Pianos in D Major, K. 448: III. Molto allegro (Live)
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by artist: Sergei Babayan
in album: Martha Argerich and Friends Live from the Lugano Festival 2016
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  date published: 2017-09-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
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additional property: CopyrightStatus
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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
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60328f4279e65d7c54fe70a3a0cb1e98e10302b99d7d9bddb6470530acd7421e. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/CH8291700726 — a six-check JSON result.
  date published: 2026-07-31T08:26:41Z
audio: Mozart: Sonata for 2 Pianos in D Major, K. 448: III. Molto allegro (Live)
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Falla / Arr. Lafitte: La vida breve: Danza española No. 1
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by artist: Martha Argerich
in album: Martha Argerich and Friends Live from the Lugano Festival 2016
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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
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  date published: 2026-07-08T03:20:19Z
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Ravel: Piano Concerto in G Major, M. 83: II. Adagio assai (Live)
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by artist: Martha Argerich
by artist: Alexander Vedernikov
by artist: Orchestra della Svizzera Italiana
in album: Martha Argerich and Friends Live from the Lugano Festival 2016
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genre: classical
genre: impressionism
genre: neoclassicism
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T06:56:49Z
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe70a9a197088461812027854b55466a10002069ea396cbceba3fd3b2923dfc4f. 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/CH8291700731 — a six-check JSON result.
  date published: 2026-07-08T03:22:41Z
audio: Ravel: Piano Concerto in G Major, M. 83: III. Presto (Live)
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Beethoven: Fantasia in C Minor, Op. 80, "Choral Fantasy": I. Adagio (Live)
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duration: PT3M22S
duration ms: 202693
explicit: false
by artist: Ludwig van Beethoven
by artist: Martha Argerich
by artist: Diego Fasolis
by artist: Orchestra della Svizzera Italiana
in album: Martha Argerich and Friends Live from the Lugano Festival 2016
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  date published: 2017-09-01
genre: classical
genre: classical-piano
genre: chamber-music
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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
  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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  date published: 2026-07-02T03:55:08Z
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Beethoven: Choral Fantasy, Op. 80: II. Finale (Allegro - Meno allegro - Allegro)
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duration: PT17M6S
duration ms: 1026773
explicit: false
by artist: Ludwig van Beethoven
by artist: Martha Argerich
by artist: Diego Fasolis
by artist: Orchestra della Svizzera Italiana
in album: Martha Argerich and Friends Live from the Lugano Festival 2016
  type: MusicAlbum
  date published: 2017-09-01
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: CH8291700733
additional property: CopyrightID
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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: 2026-07-02T03:55:08Z
audio: Beethoven: Choral Fantasy, Op. 80: II. Finale (Allegro - Meno allegro - Allegro)
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Brahms: Trio in E-Flat Major, Op. 40: IV. Finale (Allegro con brio)
type: MusicRecording
duration: PT6M36S
duration ms: 396573
explicit: false
by artist: Johannes Brahms
by artist: Martha Argerich
in album: Martha Argerich and Friends Live from the Lugano Festival 2016
  type: MusicAlbum
  date published: 2017-09-01
genre: classical
genre: german-romanticism
genre: classical-piano
genre: late-romantic-era
genre: chamber-music
genre: orchestral
isrc code: CH8291700737
additional property: CopyrightID
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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: 2026-07-31T19:53:57Z
audio: Brahms: Trio in E-Flat Major, Op. 40: IV. Finale (Allegro con brio)
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Bach, JS: Violin Sonata No. 4 in C Minor, BWV 1017: I. Largo (Live)
type: MusicRecording
duration: PT3M55S
duration ms: 235640
explicit: false
by artist: Johann Sebastian Bach
by artist: Martha Argerich
by artist: Tedi Papavrami
in album: Martha Argerich and Friends Live from the Lugano Festival 2016
  type: MusicAlbum
  date published: 2017-09-01
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: CH8291700741
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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: 2026-07-06T06:56:49Z
audio: Bach, JS: Violin Sonata No. 4 in C Minor, BWV 1017: I. Largo (Live)
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Violino d'amore (Concerti di Antonio Vivaldi, Federico Maria Sardelli, Anton Martynov, Gianluca Bersanetti)
type: MusicAlbum
date published: 2018-11-06
track: Baroque Violin Concerto in G Minor, I. Allegro
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  by artist: Kremena Nikolova
  by artist: Vivaldi Society
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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
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9d0fa6ad7392bef835af8884c44f8fa4460cdcd9741ff399663fe4d7b5de1e. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/DEAR41895663 — a six-check JSON result.
    date published: 2026-08-01T04:30:37Z
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Italian Violin Concertos
type: MusicAlbum
date published: 2019-11-15

Open Air Tango
type: MusicAlbum
date published: 2023-07-14