DJ Club Sandwich
type: MusicGroup
genre: lo-fi house
popularity: 4
followers: 401
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x60fac513c2b78675cb05747c803b674ff1699dd4adf6a78928e0e3880d205add
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/811e355c-b585-4778-b078-eddf566cf812.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/811e355c-b585-4778-b078-eddf566cf812.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/811e355c-b585-4778-b078-eddf566cf812
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x60fac513c2b78675cb05747c803b674ff1699dd4adf6a78928e0e3880d205add","name":"DJ Club Sandwich","registered_at":"2026-06-17T10:37:28Z","symbol":"NIM1369118","token_address":"0x7404823dcadb63bfe48acca4f268782b0b2ab20a","type":"artist","uuid":"811e355c-b585-4778-b078-eddf566cf812"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60fac513c2b78675cb05747c803b674ff1699dd4adf6a78928e0e3880d205add. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/811e355c-b585-4778-b078-eddf566cf812.json and https://artists.proofprofile.net/proofs/artist/811e355c-b585-4778-b078-eddf566cf812.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x60fac513c2b78675cb05747c803b674ff1699dd4adf6a78928e0e3880d205add","name":"DJ Club Sandwich","registered_at":"2026-06-17T10:37:28Z","symbol":"NIM1369118","token_address":"0x7404823dcadb63bfe48acca4f268782b0b2ab20a","type":"artist","uuid":"811e355c-b585-4778-b078-eddf566cf812"}
album: Glove 006
  type: MusicAlbum
  date published: 2019-01-25
album: Conversations
  type: MusicAlbum
  date published: 2019-09-27
  track: Innocent Conversations
    type: MusicRecording
    duration: PT4M40S
    duration ms: 280320
    explicit: false
    by artist: DJ Club Sandwich
    in album: Conversations
      type: MusicAlbum
      date published: 2019-09-27
    genre: lo-fi house
    isrc code: QZHN41991392
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T09:02:19+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf182f55458df1e13ff2aa8c5a91e852c5965003faff92aeee6691700b0a47b10
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958988
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958988
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN41991392
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T12:02:35Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf182f55458df1e13ff2aa8c5a91e852c5965003faff92aeee6691700b0a47b10. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T12:02:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN41991392.
      date published: 2026-07-21T12:02:35Z
    audio: Innocent Conversations
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 124.995
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.744
      additional property: Energy
        type: PropertyValue
        value: 0.914
      additional property: Speechiness
        type: PropertyValue
        value: 0.159
      additional property: Acousticness
        type: PropertyValue
        value: 0.197
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.929
      additional property: Liveness
        type: PropertyValue
        value: 0.238
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.076
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.459
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Redo
  type: MusicAlbum
  date published: 2020-05-29
album: Distant Air
  type: MusicAlbum
  date published: 2020-07-31
album: Flectic Mongs
  type: MusicAlbum
  date published: 2022-09-26
album: The call
  type: MusicAlbum
  date published: 2023-02-14