Klaus W. Hoffmann und Klaus Neuhaus
type: MusicGroup
genre: children's music
popularity: 10
followers: 3798
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6db6e010b9294aa0c123368f13af03d5722c5a252accfcb74019825ccf8404b2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b6ab11eb-dc3f-42cc-9973-4f4422f808e2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b6ab11eb-dc3f-42cc-9973-4f4422f808e2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b6ab11eb-dc3f-42cc-9973-4f4422f808e2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6db6e010b9294aa0c123368f13af03d5722c5a252accfcb74019825ccf8404b2","name":"Klaus W. Hoffmann und Klaus Neuhaus","registered_at":"2026-06-20T15:32:46Z","symbol":"NIM1642297","token_address":"0xf70800a7b388679274c8583e5f4f2f5894c6905a","type":"artist","uuid":"b6ab11eb-dc3f-42cc-9973-4f4422f808e2"}
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 0x6db6e010b9294aa0c123368f13af03d5722c5a252accfcb74019825ccf8404b2. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b6ab11eb-dc3f-42cc-9973-4f4422f808e2.json and https://artists.proofprofile.net/proofs/artist/b6ab11eb-dc3f-42cc-9973-4f4422f808e2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x6db6e010b9294aa0c123368f13af03d5722c5a252accfcb74019825ccf8404b2","name":"Klaus W. Hoffmann und Klaus Neuhaus","registered_at":"2026-06-20T15:32:46Z","symbol":"NIM1642297","token_address":"0xf70800a7b388679274c8583e5f4f2f5894c6905a","type":"artist","uuid":"b6ab11eb-dc3f-42cc-9973-4f4422f808e2"}
album: Mäuse-Fanten-Pop
  type: MusicAlbum
  date published: 2013-02-01
  track: Dackelwackeltanz
    type: MusicRecording
    duration: PT2M2S
    duration ms: 122160
    explicit: false
    by artist: Klaus W. Hoffmann und Klaus Neuhaus
    in album: Mäuse-Fanten-Pop
      type: MusicAlbum
      date published: 2013-02-01
    genre: children's music
    isrc code: DEAR41247235
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T15:15:39+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb978c6630341ea737603d85163d597696f1454ab671038b3ea951f267e4c292e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956725
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956725
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAR41247235
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:12:41Z
    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 0xb978c6630341ea737603d85163d597696f1454ab671038b3ea951f267e4c292e. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEAR41247235.
      date published: 2026-07-05T01:12:41Z
    audio: Dackelwackeltanz
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 130.13
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.923
      additional property: Energy
        type: PropertyValue
        value: 0.814
      additional property: Speechiness
        type: PropertyValue
        value: 0.041
      additional property: Acousticness
        type: PropertyValue
        value: 0.231
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.1
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.986
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.191
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Tanz, Tanz, Tanz
  type: MusicAlbum
  date published: 2013-02-15