Little Ludwig Van
type: MusicGroup
popularity: 2
followers: 34
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3f823a76cd96c62fad996100f8f16a5e35846653d041654591ba346cb0bf11d7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/64ef5694-52ac-4cb5-bb3a-f054feecd914.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/64ef5694-52ac-4cb5-bb3a-f054feecd914.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/64ef5694-52ac-4cb5-bb3a-f054feecd914
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3f823a76cd96c62fad996100f8f16a5e35846653d041654591ba346cb0bf11d7","name":"Little Ludwig Van","registered_at":"2026-06-17T00:50:12Z","symbol":"NIM1229026","token_address":"0x3121cf8349daa2b707211840fbb8d8efdc4ce003","type":"artist","uuid":"64ef5694-52ac-4cb5-bb3a-f054feecd914"}
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 0x3f823a76cd96c62fad996100f8f16a5e35846653d041654591ba346cb0bf11d7. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/64ef5694-52ac-4cb5-bb3a-f054feecd914.json and https://artists.proofprofile.net/proofs/artist/64ef5694-52ac-4cb5-bb3a-f054feecd914.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x3f823a76cd96c62fad996100f8f16a5e35846653d041654591ba346cb0bf11d7","name":"Little Ludwig Van","registered_at":"2026-06-17T00:50:12Z","symbol":"NIM1229026","token_address":"0x3121cf8349daa2b707211840fbb8d8efdc4ce003","type":"artist","uuid":"64ef5694-52ac-4cb5-bb3a-f054feecd914"}
album: German Romantik
  type: MusicAlbum
  date published: 2009-01-02
  track: Mondschein Sonate - Beethoven
    type: MusicRecording
    duration: PT4M14S
    duration ms: 254911
    explicit: false
    by artist: Little Ludwig Van
    in album: German Romantik
      type: MusicAlbum
      date published: 2009-01-02
    isrc code: DEY340400359
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T15:35:56+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x78ebf974e35d45bd4ce444b35ef31ea8dc75e9853db20fe60083568a859b8194
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958749
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958749
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEY340400359
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T18:37:50Z
    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 0x78ebf974e35d45bd4ce444b35ef31ea8dc75e9853db20fe60083568a859b8194. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:37:50Z), 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/DEY340400359.
      date published: 2026-07-19T18:37:50Z
    audio: Mondschein Sonate - Beethoven
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 153.983
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.427
      additional property: Energy
        type: PropertyValue
        value: 0.979
      additional property: Speechiness
        type: PropertyValue
        value: 0.038
      additional property: Acousticness
        type: PropertyValue
        value: 0.031
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.864
      additional property: Liveness
        type: PropertyValue
        value: 0.133
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.628
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.432
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor