Wilma Van Heerden
type: MusicGroup
popularity: 25
followers: 6847
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x794fe58d33042bd6934e0fcf9cae6deb4c284b28cc9e9ae4ccc47083b08cb9ab
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953408
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953408
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4aa55f4e-36f7-47d1-8a1b-461ecd220af9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4aa55f4e-36f7-47d1-8a1b-461ecd220af9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4aa55f4e-36f7-47d1-8a1b-461ecd220af9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:28:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x794fe58d33042bd6934e0fcf9cae6deb4c284b28cc9e9ae4ccc47083b08cb9ab","name":"Wilma Van Heerden","registered_at":"2026-06-11T19:15:01Z","symbol":"NIM0096949","token_address":"0xa4e15508c12449099b2e57325471783e300a652d","type":"artist","uuid":"4aa55f4e-36f7-47d1-8a1b-461ecd220af9"}
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 0x794fe58d33042bd6934e0fcf9cae6deb4c284b28cc9e9ae4ccc47083b08cb9ab. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4aa55f4e-36f7-47d1-8a1b-461ecd220af9.json and https://artists.proofprofile.net/proofs/artist/4aa55f4e-36f7-47d1-8a1b-461ecd220af9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
  text: {"copyright_id":"0x794fe58d33042bd6934e0fcf9cae6deb4c284b28cc9e9ae4ccc47083b08cb9ab","name":"Wilma Van Heerden","registered_at":"2026-06-11T19:15:01Z","symbol":"NIM0096949","token_address":"0xa4e15508c12449099b2e57325471783e300a652d","type":"artist","uuid":"4aa55f4e-36f7-47d1-8a1b-461ecd220af9"}
album: SySoen
  type: MusicAlbum
  date published: 2023-03-24
album: Maklike Wiskunde
  type: MusicAlbum
  date published: 2023-08-11
album: Koebaai aan my Hart
  type: MusicAlbum
  date published: 2024-05-10
album: Hang Aan Jou Lippe
  type: MusicAlbum
  date published: 2025-05-23