Groen-Wit Hart
type: MusicGroup
popularity: 4
followers: 53
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcc2db84d4aa01087391e4678d25167b899ff3aaa96ced192fb2899aa6cdea23d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4e868283-0bd3-4571-95c3-7931613e5dcf.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4e868283-0bd3-4571-95c3-7931613e5dcf.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4e868283-0bd3-4571-95c3-7931613e5dcf
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcc2db84d4aa01087391e4678d25167b899ff3aaa96ced192fb2899aa6cdea23d","name":"Groen-Wit Hart","registered_at":"2026-06-16T17:00:55Z","symbol":"NIM1117066","token_address":"0xe887dae8d566cdf8ede519f360ab430a6e529242","type":"artist","uuid":"4e868283-0bd3-4571-95c3-7931613e5dcf"}
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 0xcc2db84d4aa01087391e4678d25167b899ff3aaa96ced192fb2899aa6cdea23d. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4e868283-0bd3-4571-95c3-7931613e5dcf.json and https://artists.proofprofile.net/proofs/artist/4e868283-0bd3-4571-95c3-7931613e5dcf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0xcc2db84d4aa01087391e4678d25167b899ff3aaa96ced192fb2899aa6cdea23d","name":"Groen-Wit Hart","registered_at":"2026-06-16T17:00:55Z","symbol":"NIM1117066","token_address":"0xe887dae8d566cdf8ede519f360ab430a6e529242","type":"artist","uuid":"4e868283-0bd3-4571-95c3-7931613e5dcf"}
album: Dit is voor m'n Stad
  type: MusicAlbum
  date published: 2015-04-09
album: Dit is voor m`n Stad
  type: MusicAlbum
  date published: 2015-04-09
  track: Dit is voor m`n Stad
    type: MusicRecording
    duration: PT3M34S
    duration ms: 214000
    explicit: false
    by artist: Groen-Wit Hart
    in album: Dit is voor m`n Stad
      type: MusicAlbum
      date published: 2015-04-09
    isrc code: NLE3R1500012
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T17:56:41+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe2b867bcce3721d238ae737f76788516ad6c081f34de1470af3468d605a68f34
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958185
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958185
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE3R1500012
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T18:19:04Z
    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 0xe2b867bcce3721d238ae737f76788516ad6c081f34de1470af3468d605a68f34. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/NLE3R1500012.
      date published: 2026-07-15T18:19:04Z
    audio: Dit is voor m`n Stad
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 91.975
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.621
      additional property: Energy
        type: PropertyValue
        value: 0.832
      additional property: Speechiness
        type: PropertyValue
        value: 0.093
      additional property: Acousticness
        type: PropertyValue
        value: 0.114
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.134
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.491
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.938
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Major