Gabrieli String Quartet
type: MusicGroup
genre: chamber music
genre: classical
popularity: 19
followers: 472
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x30cd30f1f997b811bc50e335abeefb45f69ac8e31013e9e1a081272f39811797
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953765
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953765
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bee7f1ad-9a00-4caf-bc93-50a9e683f230.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bee7f1ad-9a00-4caf-bc93-50a9e683f230.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bee7f1ad-9a00-4caf-bc93-50a9e683f230
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T08:55:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x30cd30f1f997b811bc50e335abeefb45f69ac8e31013e9e1a081272f39811797","name":"Gabrieli String Quartet","registered_at":"2026-06-15T00:33:22Z","symbol":"NIM0625951","token_address":"0x33db3ff659c07e3a644180c565f62668af5fb9d2","type":"artist","uuid":"bee7f1ad-9a00-4caf-bc93-50a9e683f230"}
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 0x30cd30f1f997b811bc50e335abeefb45f69ac8e31013e9e1a081272f39811797. Chain 2 (Bitcoin): anchored in block 953765 (2026-06-15T08:55:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bee7f1ad-9a00-4caf-bc93-50a9e683f230.json and https://artists.proofprofile.net/proofs/artist/bee7f1ad-9a00-4caf-bc93-50a9e683f230.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T08:55:24Z
  text: {"copyright_id":"0x30cd30f1f997b811bc50e335abeefb45f69ac8e31013e9e1a081272f39811797","name":"Gabrieli String Quartet","registered_at":"2026-06-15T00:33:22Z","symbol":"NIM0625951","token_address":"0x33db3ff659c07e3a644180c565f62668af5fb9d2","type":"artist","uuid":"bee7f1ad-9a00-4caf-bc93-50a9e683f230"}
album: Tchaikovsky: String Quartet No.1; Borodin: String Quartet No.2; Shostakovich: String Quartet No.8
  type: MusicAlbum
  date published: 1963-01-01
album: Janacek: String Quartets; Suk: String Quartet No. 1
  type: MusicAlbum
  date published: 1978-01-01
album: Elgar: String Quartet in E Minor - Walton: String Quartet in A Minor
  type: MusicAlbum
  date published: 1986-12-01
album: Tchaikovsky: String Quartet No.1 / Borodin: String Quartet No.2 / Shostakovich: String Quartet No.8
  type: MusicAlbum
  date published: 1989-12-01
album: Tchaikovsky: String Quartet No. 1 – Borodin: String Quartet No. 2 – Shostakovich: String Quartet No. 8
  type: MusicAlbum
  date published: 1989-12-29
  track: String Quartet No. 2 in D Major: III. Notturno. Andante
    type: MusicRecording
    duration: PT8M8S
    duration ms: 488640
    explicit: false
    by artist: Gabrieli String Quartet
    in album: Tchaikovsky: String Quartet No. 1 – Borodin: String Quartet No. 2 – Shostakovich: String Quartet No. 8
      type: MusicAlbum
      date published: 1989-12-29
    genre: chamber music
    genre: classical
    isrc code: GBF076110523
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-13T15:13:03+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc8ce744a0cdf200922f8c18c08142b07dccc1c595330399b4e4a3e5b864c69f6
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957872
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957872
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076110523
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-13T15:39:45Z
    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 0xc8ce744a0cdf200922f8c18c08142b07dccc1c595330399b4e4a3e5b864c69f6. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076110523.
      date published: 2026-07-13T15:39:45Z
    audio: String Quartet No. 2 in D Major: III. Notturno. Andante
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 86.565
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.169
      additional property: Energy
        type: PropertyValue
        value: 0.091
      additional property: Speechiness
        type: PropertyValue
        value: 0.05
      additional property: Acousticness
        type: PropertyValue
        value: 0.916
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.454
      additional property: Liveness
        type: PropertyValue
        value: 0.174
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.124
      additional property: Loudness (dB)
        type: PropertyValue
        value: -22.681
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: String Quartet No. 8 In C Minor, Op. 110: IV. Largo
    type: MusicRecording
    duration: PT5M11S
    duration ms: 311973
    explicit: false
    by artist: Gabrieli String Quartet
    in album: Tchaikovsky: String Quartet No. 1 – Borodin: String Quartet No. 2 – Shostakovich: String Quartet No. 8
      type: MusicAlbum
      date published: 1989-12-29
    genre: chamber music
    genre: classical
    isrc code: GBF076110534
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T13:38:50+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x92c76397df98755f190d15a84d3901d5ca0f7b64bbbd292bcde506f19637c9af
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958897
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958897
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076110534
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T14:57:46Z
    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 0x92c76397df98755f190d15a84d3901d5ca0f7b64bbbd292bcde506f19637c9af. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076110534.
      date published: 2026-07-20T14:57:46Z
    audio: String Quartet No. 8 In C Minor, Op. 110: IV. Largo
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 51.055
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.187
      additional property: Energy
        type: PropertyValue
        value: 0.014
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
track: Overture on Hebrew Themes, Op. 34
track: Quintette avec clarinette

Speechiness
type: PropertyValue
value: 0.049

Acousticness
type: PropertyValue
value: 0.976

Instrumentalness
type: PropertyValue
value: 0.771

Liveness
type: PropertyValue
value: 0.178

Valence (Positivity)
type: PropertyValue
value: 0.035

Loudness (dB)
type: PropertyValue
value: -25.301

Key Name
type: PropertyValue
value: Ab

Mode Name
type: PropertyValue
value: Major

Overture on Hebrew Themes, Op. 34
type: MusicRecording
duration: PT8M43S
duration ms: 523333
explicit: false
by artist: Sergei Prokofiev
by artist: Vladimir Ashkenazy
by artist: Keith Puddy
by artist: Gabrieli String Quartet
in album: Prokofiev: Piano Concertos Nos. 1-5; Classical Symphony; Autumnal; Overture on Hebrew Themes
  type: MusicAlbum
  date published: 2017-08-25
popularity: 1
genre: classical
genre: orchestra
genre: neoclassical
isrc code: GBF077411970
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T04:27:32+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd47b9d065070dbf81fa37a9636a9b12418ec15d2e5bb33f7b465a301349314b9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960348
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960348
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077411970
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T05:17:02Z
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 0xd47b9d065070dbf81fa37a9636a9b12418ec15d2e5bb33f7b465a301349314b9. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077411970.
  date published: 2026-07-31T05:17:02Z
audio: Overture on Hebrew Themes, Op. 34
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 109.335
  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: 0.183
  additional property: Energy
    type: PropertyValue
    value: 0.102
  additional property: Speechiness
    type: PropertyValue
    value: 0.033
  additional property: Acousticness
    type: PropertyValue
    value: 0.909
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.671
  additional property: Liveness
    type: PropertyValue
    value: 0.08
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.073
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.074
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Quintette avec clarinette
type: MusicRecording
duration: PT4M29S
duration ms: 269453
explicit: false
by artist: Gallimard Jeunesse
by artist: Jacques Bonnaffé
by artist: Thea King
by artist: Gabrieli String Quartet
in album: Mozart
  type: MusicAlbum
  date published: 2006
isrc code: FR8Z02000120
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T07:58:03+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9464cf6b177c7cb478c6f7059272d871d72f030b4118be786ea4ad77e3dce8fb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960368
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960368
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR8Z02000120
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T08:26:41Z
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 0x9464cf6b177c7cb478c6f7059272d871d72f030b4118be786ea4ad77e3dce8fb. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR8Z02000120.
  date published: 2026-07-31T08:26:41Z
audio: Quintette avec clarinette
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 164.536
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.222
  additional property: Energy
    type: PropertyValue
    value: 0.017
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.906
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.01
  additional property: Liveness
    type: PropertyValue
    value: 0.157
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.076
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.295
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major