Lund Quartet
type: MusicGroup
genre: nu jazz
genre: trip hop
popularity: 29
followers: 15649
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x59a526d584c302155b50416219b70171789cd3f9be4ad77170bce9fae5d1127c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d9ebd31d-e25c-47ae-be01-2a2249461e9c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d9ebd31d-e25c-47ae-be01-2a2249461e9c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d9ebd31d-e25c-47ae-be01-2a2249461e9c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x59a526d584c302155b50416219b70171789cd3f9be4ad77170bce9fae5d1127c","name":"Lund Quartet","registered_at":"2026-06-12T11:17:33Z","symbol":"NIM0281467","token_address":"0x4b5437bd5bb44b8bfec045fd692e83e3a381abdd","type":"artist","uuid":"d9ebd31d-e25c-47ae-be01-2a2249461e9c"}
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 0x59a526d584c302155b50416219b70171789cd3f9be4ad77170bce9fae5d1127c. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d9ebd31d-e25c-47ae-be01-2a2249461e9c.json and https://artists.proofprofile.net/proofs/artist/d9ebd31d-e25c-47ae-be01-2a2249461e9c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x59a526d584c302155b50416219b70171789cd3f9be4ad77170bce9fae5d1127c","name":"Lund Quartet","registered_at":"2026-06-12T11:17:33Z","symbol":"NIM0281467","token_address":"0x4b5437bd5bb44b8bfec045fd692e83e3a381abdd","type":"artist","uuid":"d9ebd31d-e25c-47ae-be01-2a2249461e9c"}
album: Lund Quartet
  type: MusicAlbum
  date published: 2011-12-19
album: Sequoia
  type: MusicAlbum
  date published: 2013-05-07
album: Sequoia
  type: MusicAlbum
  date published: 2013-05-07
album: Lund Quartet
  type: MusicAlbum
  date published: 2013-09-30
album: Lund Quartet
  type: MusicAlbum
  date published: 2013-10-28
  track: Zill Bell
    type: MusicRecording
    duration: PT8M45S
    duration ms: 525505
    explicit: false
    by artist: Lund Quartet
    in album: Lund Quartet
      type: MusicAlbum
      date published: 2013-10-28
    genre: nu jazz
    genre: trip hop
    isrc code: GBGLW1300007
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-12T18:33:31+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb2c610e50686c02b5dfc7152ef9d218c64564044e8c316386a759953bacba833
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957744
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957744
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGLW1300007
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T19:15:44Z
    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 0xb2c610e50686c02b5dfc7152ef9d218c64564044e8c316386a759953bacba833. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/GBGLW1300007.
      date published: 2026-07-12T19:15:44Z
    audio: Zill Bell
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 109.991
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.394
      additional property: Energy
        type: PropertyValue
        value: 0.053
      additional property: Speechiness
        type: PropertyValue
        value: 0.041
      additional property: Acousticness
        type: PropertyValue
        value: 0.906
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.907
      additional property: Liveness
        type: PropertyValue
        value: 0.054
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.039
      additional property: Loudness (dB)
        type: PropertyValue
        value: -18.487
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Office Jazz
  type: MusicAlbum
  date published: 2022-12-24
album: No Stress at Work Jazz
  type: MusicAlbum
  date published: 2022-12-24
album: Romantisches Essen Jazz
  type: MusicAlbum
  date published: 2023-04-20