vanhofstedt
type: MusicGroup
popularity: 11
followers: 487
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x43d730644e1c2450508f1d693b26576793d65ce3cce2bab22b4c85c25155433b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953778
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953778
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c37570d7-35e1-4047-ab9b-d24436157aef.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c37570d7-35e1-4047-ab9b-d24436157aef.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c37570d7-35e1-4047-ab9b-d24436157aef
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T11:57:35Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43d730644e1c2450508f1d693b26576793d65ce3cce2bab22b4c85c25155433b. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c37570d7-35e1-4047-ab9b-d24436157aef.json and https://artists.proofprofile.net/proofs/artist/c37570d7-35e1-4047-ab9b-d24436157aef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T11:57:35Z
album: Negativität
  type: MusicAlbum
  date published: 2021-03-14
album: Was war
  type: MusicAlbum
  date published: 2021-09-18
  track: Was war
    type: MusicRecording
    duration: PT1M51S
    duration ms: 111864
    explicit: true
    by artist: vanhofstedt
    in album: Was war
      type: MusicAlbum
      date published: 2021-09-18
    isrc code: DEZC62125078
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T19:56:15+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2e8f8823f77588cbcd6e313b72666cb024d002b2cfb75a39e8f7d05962d07e04
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958775
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958775
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEZC62125078
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T20:13:58Z
    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 0x2e8f8823f77588cbcd6e313b72666cb024d002b2cfb75a39e8f7d05962d07e04. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/DEZC62125078.
      date published: 2026-07-19T20:13:58Z
    audio: Was war
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 171.982
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.645
      additional property: Energy
        type: PropertyValue
        value: 0.413
      additional property: Speechiness
        type: PropertyValue
        value: 0.22
      additional property: Acousticness
        type: PropertyValue
        value: 0.231
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.163
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.369
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.436
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Joker
  type: MusicAlbum
  date published: 2021-10-21
album: Cold Summer Nights
  type: MusicAlbum
  date published: 2021-10-26
album: OD
  type: MusicAlbum
  date published: 2021-11-19
album: Heilen
  type: MusicAlbum
  date published: 2022-02-25
album: Benzos
  type: MusicAlbum
  date published: 2022-04-22
album: Blair Witch
  type: MusicAlbum
  date published: 2022-09-16
album: Koma
  type: MusicAlbum
  date published: 2023-01-13
album: SOMMERNACHT FREESTYLE
  type: MusicAlbum
  date published: 2023-06-16
album: Eins
  type: MusicAlbum
  date published: 2023-10-27
album: Echt
  type: MusicAlbum
  date published: 2023-12-29
album: personal addict
  type: MusicAlbum
  date published: 2024-02-02
album: Nostalgia
  type: MusicAlbum
  date published: 2024-02-16