Piet Hackmann
type: MusicGroup
popularity: 10
followers: 309
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x428beb89d4fa261bb25e3caa15d44db16e13a95928eeb8dcdf6d3b03c1715c6b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954631
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954631
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ce4b7392-5e8c-42d0-8cc0-19205ebdeab1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ce4b7392-5e8c-42d0-8cc0-19205ebdeab1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ce4b7392-5e8c-42d0-8cc0-19205ebdeab1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T02:46:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x428beb89d4fa261bb25e3caa15d44db16e13a95928eeb8dcdf6d3b03c1715c6b","name":"Piet Hackmann","registered_at":"2026-06-20T23:54:37Z","symbol":"NIM1754152","token_address":"0x4c20ce113e97aab542784a7c30efb6816c93ceb6","type":"artist","uuid":"ce4b7392-5e8c-42d0-8cc0-19205ebdeab1"}
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 0x428beb89d4fa261bb25e3caa15d44db16e13a95928eeb8dcdf6d3b03c1715c6b. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ce4b7392-5e8c-42d0-8cc0-19205ebdeab1.json and https://artists.proofprofile.net/proofs/artist/ce4b7392-5e8c-42d0-8cc0-19205ebdeab1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T02:46:24Z
  text: {"copyright_id":"0x428beb89d4fa261bb25e3caa15d44db16e13a95928eeb8dcdf6d3b03c1715c6b","name":"Piet Hackmann","registered_at":"2026-06-20T23:54:37Z","symbol":"NIM1754152","token_address":"0x4c20ce113e97aab542784a7c30efb6816c93ceb6","type":"artist","uuid":"ce4b7392-5e8c-42d0-8cc0-19205ebdeab1"}
album: Komm Mit Mir Auf Tour
  type: MusicAlbum
  date published: 2021-05-03
  track: Fahrer Du Bist Deutschlands Bester Mann
    type: MusicRecording
    duration: PT3M54S
    duration ms: 234032
    explicit: false
    by artist: Piet Hackmann
    in album: Komm Mit Mir Auf Tour
      type: MusicAlbum
      date published: 2021-05-03
    isrc code: TCAFO2116961
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T23:18:21+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x751b25ea85898fec8deedeec757e61d10e78b56cfb09f4ef032912a0c1c2d8b3
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958798
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958798
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFO2116961
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T02:20:42Z
    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 0x751b25ea85898fec8deedeec757e61d10e78b56cfb09f4ef032912a0c1c2d8b3. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:20:42Z), 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/TCAFO2116961.
      date published: 2026-07-20T02:20:42Z
    audio: Fahrer Du Bist Deutschlands Bester Mann
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 144.114
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.581
      additional property: Energy
        type: PropertyValue
        value: 0.48
      additional property: Speechiness
        type: PropertyValue
        value: 0.04
      additional property: Acousticness
        type: PropertyValue
        value: 0.531
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.098
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.318
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.737
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Wer Einmal Tief Im Keller Saß
  type: MusicAlbum
  date published: 2023-03-19