Justus Cremer
type: MusicGroup
popularity: 5
followers: 316
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x22f9c860d05be7bbc8b77df0441b2b9605f0305a44d3043884d7c57c4e10b957
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/83ebf2d3-ea63-4fa6-ba53-5844a1b53c6d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/83ebf2d3-ea63-4fa6-ba53-5844a1b53c6d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/83ebf2d3-ea63-4fa6-ba53-5844a1b53c6d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x22f9c860d05be7bbc8b77df0441b2b9605f0305a44d3043884d7c57c4e10b957","name":"Justus Cremer","registered_at":"2026-06-17T12:01:08Z","symbol":"NIM1389056","token_address":"0x39cb7fa5ca9f58c9935b66191915d515f44e62ba","type":"artist","uuid":"83ebf2d3-ea63-4fa6-ba53-5844a1b53c6d"}
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 0x22f9c860d05be7bbc8b77df0441b2b9605f0305a44d3043884d7c57c4e10b957. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/83ebf2d3-ea63-4fa6-ba53-5844a1b53c6d.json and https://artists.proofprofile.net/proofs/artist/83ebf2d3-ea63-4fa6-ba53-5844a1b53c6d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x22f9c860d05be7bbc8b77df0441b2b9605f0305a44d3043884d7c57c4e10b957","name":"Justus Cremer","registered_at":"2026-06-17T12:01:08Z","symbol":"NIM1389056","token_address":"0x39cb7fa5ca9f58c9935b66191915d515f44e62ba","type":"artist","uuid":"83ebf2d3-ea63-4fa6-ba53-5844a1b53c6d"}
album: Zeit
  type: MusicAlbum
  date published: 2023-07-28
album: Atmen
  type: MusicAlbum
  date published: 2024-09-27
album: Viel zu wenig
  type: MusicAlbum
  date published: 2025-01-17
  track: Viel zu wenig
    type: MusicRecording
    duration: PT3M13S
    duration ms: 193846
    explicit: false
    by artist: Justus Cremer
    in album: Viel zu wenig
      type: MusicAlbum
      date published: 2025-01-17
    isrc code: DEYX82237548
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T08:37:14+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xfeb911c2759dac5de9a7c39b2fb0f9cce0e8c2f7df7f64bfce32875b2f447798
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959118
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959118
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEYX82237548
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T10:01:58Z
    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 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 0xfeb911c2759dac5de9a7c39b2fb0f9cce0e8c2f7df7f64bfce32875b2f447798. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/DEYX82237548.
      date published: 2026-07-22T10:01:58Z
    audio: Viel zu wenig
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 129.993
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.672
      additional property: Energy
        type: PropertyValue
        value: 0.451
      additional property: Speechiness
        type: PropertyValue
        value: 0.049
      additional property: Acousticness
        type: PropertyValue
        value: 0.427
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.114
      additional property: Liveness
        type: PropertyValue
        value: 0.081
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.303
      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.175
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Da, wo's noch grün ist
  type: MusicAlbum
  date published: 2025-05-30