Du Preez Van Heerden
type: MusicGroup
popularity: 6
followers: 404
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x576be10e0d982c25956f5658e7fd24775b6a3072a785471d6aec985727630f70
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953909
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953909
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/17c90913-4591-4f39-bf4a-c26c76a1ed4f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/17c90913-4591-4f39-bf4a-c26c76a1ed4f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/17c90913-4591-4f39-bf4a-c26c76a1ed4f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:53:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x576be10e0d982c25956f5658e7fd24775b6a3072a785471d6aec985727630f70","name":"Du Preez Van Heerden","registered_at":"2026-06-15T21:54:22Z","symbol":"NIM0843381","token_address":"0x8e85a0e0fa257691b413b4182873bfda4bcea836","type":"artist","uuid":"17c90913-4591-4f39-bf4a-c26c76a1ed4f"}
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 0x576be10e0d982c25956f5658e7fd24775b6a3072a785471d6aec985727630f70. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/17c90913-4591-4f39-bf4a-c26c76a1ed4f.json and https://artists.proofprofile.net/proofs/artist/17c90913-4591-4f39-bf4a-c26c76a1ed4f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0x576be10e0d982c25956f5658e7fd24775b6a3072a785471d6aec985727630f70","name":"Du Preez Van Heerden","registered_at":"2026-06-15T21:54:22Z","symbol":"NIM0843381","token_address":"0x8e85a0e0fa257691b413b4182873bfda4bcea836","type":"artist","uuid":"17c90913-4591-4f39-bf4a-c26c76a1ed4f"}
album: My Fok Marelize
  type: MusicAlbum
  date published: 2019-05-28
album: Julle Fok Met Ons Boere
  type: MusicAlbum
  date published: 2019-06-13
album: Want Ek Is Boer
  type: MusicAlbum
  date published: 2019-07-26
album: Cyril Ons Soek Pouse
  type: MusicAlbum
  date published: 2020-04-17
album: Wasted Time
  type: MusicAlbum
  date published: 2020-05-24
album: Staan Saam
  type: MusicAlbum
  date published: 2020-06-30
album: Die Stem(Die Tyd Is Nou)
  type: MusicAlbum
  date published: 2020-10-19
album: My Seun
  type: MusicAlbum
  date published: 2023-01-09
album: Springbokke Sal Dit Bly
  type: MusicAlbum
  date published: 2023-11-13
  track: Springbokke Sal Dit Bly
    type: MusicRecording
    duration: PT1M43S
    duration ms: 103913
    explicit: true
    by artist: Du Preez Van Heerden
    in album: Springbokke Sal Dit Bly
      type: MusicAlbum
      date published: 2023-11-13
    isrc code: TCAHP2364673
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T11:48:32+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xdf9c926dc8f371e9b5729fa6638ff6f17f0c2785543a5588e229f83e55990b19
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958157
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958157
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAHP2364673
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T14:51:32Z
    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 0xdf9c926dc8f371e9b5729fa6638ff6f17f0c2785543a5588e229f83e55990b19. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:51:32Z), 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/TCAHP2364673.
      date published: 2026-07-15T14:51:32Z
    audio: Springbokke Sal Dit Bly
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 110.102
      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: 0.721
      additional property: Energy
        type: PropertyValue
        value: 0.612
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      additional property: Acousticness
        type: PropertyValue
        value: 0.082
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.088
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.724
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.665
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Die Stem Van Suid Afrika
  type: MusicAlbum
  date published: 2024-02-13