HWM
type: MusicGroup
popularity: 11
followers: 775
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1e4efb5f752927cd198a0bea9fcdfe6aca0fb69e8be6ca7c30e0ebf1df844514
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953678
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953678
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/630297b7-a052-4f4a-bc97-1b37498c8150.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/630297b7-a052-4f4a-bc97-1b37498c8150.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/630297b7-a052-4f4a-bc97-1b37498c8150
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T19:23:11Z
additional property: OTSCanonicalRecord
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 0x1e4efb5f752927cd198a0bea9fcdfe6aca0fb69e8be6ca7c30e0ebf1df844514. Chain 2 (Bitcoin): anchored in block 953678 (2026-06-14T19:23:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/630297b7-a052-4f4a-bc97-1b37498c8150.json and https://artists.proofprofile.net/proofs/artist/630297b7-a052-4f4a-bc97-1b37498c8150.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-14T19:23:11Z
album: Sinds Klein
  type: MusicAlbum
  date published: 2017-02-13
album: Het Is Tijd
  type: MusicAlbum
  date published: 2017-10-13
album: Van me weten
  type: MusicAlbum
  date published: 2018-02-09
album: Van Me Weten
  type: MusicAlbum
  date published: 2018-02-09
album: Hoe Dan Ook
  type: MusicAlbum
  date published: 2018-06-15
album: Hoe Dan Ook
  type: MusicAlbum
  date published: 2018-06-15
album: #Barzz
  type: MusicAlbum
  date published: 2018-08-24
album: Ik Wil Het Nu
  type: MusicAlbum
  date published: 2018-09-28
album: Neukenpartij
  type: MusicAlbum
  date published: 2019-01-11
  track: Neukenpartij
    type: MusicRecording
    duration: PT3M0S
    duration ms: 180705
    explicit: true
    by artist: HWM
    in album: Neukenpartij
      type: MusicAlbum
      date published: 2019-01-11
    isrc code: QZ4JJ1940292
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T14:53:49+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3bac67f2ff7c199c4afc2c8f0fced1d3ff6b5d0edc538b87d885b806e016b1b4
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958901
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958901
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ4JJ1940292
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T15:07:00Z
    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 0x3bac67f2ff7c199c4afc2c8f0fced1d3ff6b5d0edc538b87d885b806e016b1b4. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ4JJ1940292 — a six-check JSON result.
      date published: 2026-07-20T15:07:00Z
    audio: Neukenpartij
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 169.987
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.796
      additional property: Energy
        type: PropertyValue
        value: 0.702
      additional property: Speechiness
        type: PropertyValue
        value: 0.158
      additional property: Acousticness
        type: PropertyValue
        value: 0.037
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.059
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.873
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.26
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Jagen
  type: MusicAlbum
  date published: 2019-02-22
album: Boren & Drukken
  type: MusicAlbum
  date published: 2019-04-19
album: Altijd Onderweg
  type: MusicAlbum
  date published: 2019-11-01
album: Everything I Need
  type: MusicAlbum
  date published: 2019-12-20
album: Grind
  type: MusicAlbum
  date published: 2020-02-13
album: Grind 2.0
  type: MusicAlbum
  date published: 2020-04-24
album: PIA
  type: MusicAlbum
  date published: 2020-06-18
album: Bij Jou
  type: MusicAlbum
  date published: 2020-08-07
album: WZD
  type: MusicAlbum
  date published: 2020-10-16
album: 2021
  type: MusicAlbum
  date published: 2021-01-29
album: Curadise
  type: MusicAlbum
  date published: 2021-08-27
album: Niet hier
  type: MusicAlbum
  date published: 2021-12-17
album: Beefen
  type: MusicAlbum
  date published: 2022-01-28
album: Kijk Maar
  type: MusicAlbum
  date published: 2022-03-04
album: Bustdown
  type: MusicAlbum
  date published: 2022-04-29
album: Going
  type: MusicAlbum
  date published: 2022-07-27
album: Onrustig
  type: MusicAlbum
  date published: 2022-09-30
album: 4 Shots
  type: MusicAlbum
  date published: 2022-12-16
album: Overwegen
album: Dom
album: Niet later
album: Kore
album: Angelina

Overwegen
type: MusicAlbum
date published: 2023-03-17

Dom
type: MusicAlbum
date published: 2023-08-25

Niet later
type: MusicAlbum
date published: 2024-01-26

Kore
type: MusicAlbum
date published: 2024-04-05

Angelina
type: MusicAlbum
date published: 2024-08-30