Sacconi Quartet
type: MusicGroup
genre: chamber music
description: The Sacconi Quartet is a UK-based classical music string quartet founded in 2001 by four graduates of the Royal College of Music, London, UK. The Quartet has achieved widespread recognition, having gi
popularity: 7
followers: 395
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xce343bee61c2e5c7e3fa71d036ca31bfdbaeada0ebb4c75305f7b1ef7568a2e1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5e1984cf-974e-48df-ad3a-1668a7d201c6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5e1984cf-974e-48df-ad3a-1668a7d201c6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5e1984cf-974e-48df-ad3a-1668a7d201c6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xce343bee61c2e5c7e3fa71d036ca31bfdbaeada0ebb4c75305f7b1ef7568a2e1","name":"Sacconi Quartet","registered_at":"2026-06-16T22:28:20Z","symbol":"NIM1195194","token_address":"0x70529af7ebb4c89860529e629fa9d7db26655847","type":"artist","uuid":"5e1984cf-974e-48df-ad3a-1668a7d201c6"}
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 0xce343bee61c2e5c7e3fa71d036ca31bfdbaeada0ebb4c75305f7b1ef7568a2e1. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5e1984cf-974e-48df-ad3a-1668a7d201c6.json and https://artists.proofprofile.net/proofs/artist/5e1984cf-974e-48df-ad3a-1668a7d201c6.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xce343bee61c2e5c7e3fa71d036ca31bfdbaeada0ebb4c75305f7b1ef7568a2e1","name":"Sacconi Quartet","registered_at":"2026-06-16T22:28:20Z","symbol":"NIM1195194","token_address":"0x70529af7ebb4c89860529e629fa9d7db26655847","type":"artist","uuid":"5e1984cf-974e-48df-ad3a-1668a7d201c6"}
album: String Quartets By Ravel, Lalo and Turina
  type: MusicAlbum
  date published: 2009-12-01
album: Haydn: String Quartets Op. 54
  type: MusicAlbum
  date published: 2009-12-01
album: Dvořák, Smetana and Suk: String Quartets
  type: MusicAlbum
  date published: 2011-06-10
album: Beethoven: String Quartets, Op. 18, Vol. 1
  type: MusicAlbum
  date published: 2011-06-10
album: David W. Bowerman: Unto the Hills
  type: MusicAlbum
  date published: 2013-09-30
album: Beethoven and Mendelssohn: String Quartets
  type: MusicAlbum
  date published: 2016-07-01
album: Schubert: String Quartet in D Minor, D. 810 "Death and the Maiden" - Beethoven: String Quartet in C-Sharp Minor, Op. 131
  type: MusicAlbum
  date published: 2023-11-10
track: On the streets and in the sky: I. Driving
  type: MusicRecording
  duration: PT7M22S
  duration ms: 442666
  explicit: false
  by artist: Jonathan Dove
  by artist: Sacconi Quartet
  in album: On the streets and in the sky (Works by Jonathan Dove)
    type: MusicAlbum
    date published: 2025-02-21
  isrc code: GBLLH2579301
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-25T23:39:11+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa145da22fe0c9918e6784f01e2ea64c12e2c29ecbfcdcbfa4cde1f57955e33b5
  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/GBLLH2579301
  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 0xa145da22fe0c9918e6784f01e2ea64c12e2c29ecbfcdcbfa4cde1f57955e33b5. 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/GBLLH2579301 — a six-check JSON result.
    date published: 2026-07-02T03:55:08Z
  audio: On the streets and in the sky: I. Driving
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 104.611
    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: 0.509
    additional property: Energy
      type: PropertyValue
      value: 0.137
    additional property: Speechiness
      type: PropertyValue
      value: 0.073
    additional property: Acousticness
      type: PropertyValue
      value: 0.939
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.733
    additional property: Liveness
      type: PropertyValue
      value: 0.059
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.039
    additional property: Loudness (dB)
      type: PropertyValue
      value: -25.567
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: On the streets and in the sky: II. Lively
  type: MusicRecording
  duration: PT5M32S
  duration ms: 332666
  explicit: false
  by artist: Jonathan Dove
  by artist: Sacconi Quartet
  in album: On the streets and in the sky (Works by Jonathan Dove)
    type: MusicAlbum
    date published: 2025-02-21
  isrc code: GBLLH2579302
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-08-01T00:16:08+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc2dde1ff4b9b930e4057679e4d2859e5c4b0008639327678e120ff1bd7c6fe80
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960489
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960489
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLLH2579302
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-08-01T00:40:43Z
  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 0xc2dde1ff4b9b930e4057679e4d2859e5c4b0008639327678e120ff1bd7c6fe80. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/GBLLH2579302 — a six-check JSON result.
    date published: 2026-08-01T00:40:43Z
  audio: On the streets and in the sky: II. Lively
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 109.263
    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
    additional property: Energy
    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: On the streets and in the sky: III. Very Gently Moving
track: Who Wrote the Book of Love?: I. Poet Love (1)

Danceability
type: PropertyValue
value: 0.344

Energy
type: PropertyValue
value: 0.016

Speechiness
type: PropertyValue
value: 0.059

Acousticness
type: PropertyValue
value: 0.847

Instrumentalness
type: PropertyValue
value: 0.151

Liveness
type: PropertyValue
value: 0.077

Valence (Positivity)
type: PropertyValue
value: 0.051

Loudness (dB)
type: PropertyValue
value: -33.142

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Minor

On the streets and in the sky: III. Very Gently Moving
type: MusicRecording
duration: PT8M32S
duration ms: 512000
explicit: false
by artist: Jonathan Dove
by artist: Sacconi Quartet
in album: On the streets and in the sky (Works by Jonathan Dove)
  type: MusicAlbum
  date published: 2025-02-21
isrc code: GBLLH2579303
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T18:31:37+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x75d3516b758a5b820dd8a6deed3bd9595f579bc46501d1fdec3d4e5fc611bda4
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/GBLLH2579303
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 0x75d3516b758a5b820dd8a6deed3bd9595f579bc46501d1fdec3d4e5fc611bda4. 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/GBLLH2579303 — a six-check JSON result.
  date published: 2026-07-31T18:48:12Z
audio: On the streets and in the sky: III. Very Gently Moving
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 107.431
  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: 0.193
  additional property: Energy
    type: PropertyValue
    value: 0.011
  additional property: Speechiness
    type: PropertyValue
    value: 0.055
  additional property: Acousticness
    type: PropertyValue
    value: 0.938
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.885
  additional property: Liveness
    type: PropertyValue
    value: 0.224
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.03
  additional property: Loudness (dB)
    type: PropertyValue
    value: -35.55
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Who Wrote the Book of Love?: I. Poet Love (1)
type: MusicRecording
duration: PT2M31S
duration ms: 151666
explicit: false
by artist: Jonathan Dove
by artist: Sacconi Quartet
by artist: Philippe Sly
in album: On the streets and in the sky (Works by Jonathan Dove)
  type: MusicAlbum
  date published: 2025-02-21
isrc code: GBLLH2579308
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T15:03:55+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8fe50a6b15828dc1ddec5d1234e6fdbb9a09a88f86e1c9d831fa86df1e75c275
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/GBLLH2579308
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 0x8fe50a6b15828dc1ddec5d1234e6fdbb9a09a88f86e1c9d831fa86df1e75c275. 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/GBLLH2579308 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Who Wrote the Book of Love?: I. Poet Love (1)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 125.439
  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: 0.166
  additional property: Energy
    type: PropertyValue
    value: 0.024
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.959
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.09
  additional property: Liveness
    type: PropertyValue
    value: 0.238
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.036
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.986
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major