Hoogvliet Supermarkten
type: MusicGroup
popularity: 5
followers: 139
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd82830ce74bbf8f57f9920072e96f8857eda12232667178227023d16cfa65d28
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954742
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954742
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fe66480b-bbac-4750-a97e-35da925e8d7d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fe66480b-bbac-4750-a97e-35da925e8d7d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fe66480b-bbac-4750-a97e-35da925e8d7d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T20:46:40Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd82830ce74bbf8f57f9920072e96f8857eda12232667178227023d16cfa65d28","name":"Hoogvliet Supermarkten","registered_at":"2026-06-21T18:34:45Z","symbol":"NIM2003353","token_address":"0xb4c0e9b76f33612ce83063e4cf9bdae1363cdf93","type":"artist","uuid":"fe66480b-bbac-4750-a97e-35da925e8d7d"}
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 0xd82830ce74bbf8f57f9920072e96f8857eda12232667178227023d16cfa65d28. Chain 2 (Bitcoin): anchored in block 954742 (2026-06-21T20:46:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fe66480b-bbac-4750-a97e-35da925e8d7d.json and https://artists.proofprofile.net/proofs/artist/fe66480b-bbac-4750-a97e-35da925e8d7d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T20:46:40Z
  text: {"copyright_id":"0xd82830ce74bbf8f57f9920072e96f8857eda12232667178227023d16cfa65d28","name":"Hoogvliet Supermarkten","registered_at":"2026-06-21T18:34:45Z","symbol":"NIM2003353","token_address":"0xb4c0e9b76f33612ce83063e4cf9bdae1363cdf93","type":"artist","uuid":"fe66480b-bbac-4750-a97e-35da925e8d7d"}
album: Poppentheater Liedjes
  type: MusicAlbum
  date published: 2020-03-25
  track: Bananen, Bananen, Bananen
    type: MusicRecording
    duration: PT1M37S
    duration ms: 97306
    explicit: false
    by artist: Hoogvliet Supermarkten
    in album: Poppentheater Liedjes
      type: MusicAlbum
      date published: 2020-03-25
    isrc code: QZDA52069047
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T02:01:21+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0ca1c09ef9df327842999d069957b39db9e7e2cb932b5521c1badf50a2fa8c4e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959091
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959091
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA52069047
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T05:02:47Z
    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 0x0ca1c09ef9df327842999d069957b39db9e7e2cb932b5521c1badf50a2fa8c4e. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T05:02:47Z), 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/QZDA52069047.
      date published: 2026-07-22T05:02:47Z
    audio: Bananen, Bananen, Bananen
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 124.038
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.892
      additional property: Energy
        type: PropertyValue
        value: 0.9
      additional property: Speechiness
        type: PropertyValue
        value: 0.058
      additional property: Acousticness
        type: PropertyValue
        value: 0.158
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.133
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.967
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.849
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major