Læx & Ludo
type: MusicGroup
genre: norwegian pop
genre: russelåter
popularity: 14
followers: 1474
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x751b753e6fb274396f6939b797bac3a8f5090348ae17ddcc619f1703d7829580
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953807
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953807
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e5b55c58-4934-4f52-a568-701ca1220889.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e5b55c58-4934-4f52-a568-701ca1220889.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e5b55c58-4934-4f52-a568-701ca1220889
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T16:39:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x751b753e6fb274396f6939b797bac3a8f5090348ae17ddcc619f1703d7829580","name":"Læx & Ludo","registered_at":"2026-06-15T04:40:50Z","symbol":"NIM0685056","token_address":"0x4a3a251645a91b97f2a4b3dc08c2d9bc0f2e2a1e","type":"artist","uuid":"e5b55c58-4934-4f52-a568-701ca1220889"}
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 0x751b753e6fb274396f6939b797bac3a8f5090348ae17ddcc619f1703d7829580. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e5b55c58-4934-4f52-a568-701ca1220889.json and https://artists.proofprofile.net/proofs/artist/e5b55c58-4934-4f52-a568-701ca1220889.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T16:39:18Z
  text: {"copyright_id":"0x751b753e6fb274396f6939b797bac3a8f5090348ae17ddcc619f1703d7829580","name":"Læx & Ludo","registered_at":"2026-06-15T04:40:50Z","symbol":"NIM0685056","token_address":"0x4a3a251645a91b97f2a4b3dc08c2d9bc0f2e2a1e","type":"artist","uuid":"e5b55c58-4934-4f52-a568-701ca1220889"}
album: Promille i Høyden
  type: MusicAlbum
  date published: 2016-03-08
album: Promille På Stranda
  type: MusicAlbum
  date published: 2016-07-08
album: Det er Steezt å Vinne (Bonus Track)
  type: MusicAlbum
  date published: 2016-11-25
  track: Det er Steezt å Vinne - Bonus Track
    type: MusicRecording
    duration: PT2M28S
    duration ms: 148656
    explicit: false
    by artist: Læx & Ludo
    in album: Det er Steezt å Vinne (Bonus Track)
      type: MusicAlbum
      date published: 2016-11-25
    genre: norwegian pop
    genre: russelåter
    isrc code: QZ4JJ1634462
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T16:01:03+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe5842c37d011e00538f321f6dc0a17de7bda7117a1e3031d6e9e94d903742a6f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958576
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958576
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ4JJ1634462
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T16:22:28Z
    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 0xe5842c37d011e00538f321f6dc0a17de7bda7117a1e3031d6e9e94d903742a6f. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/QZ4JJ1634462.
      date published: 2026-07-18T16:22:28Z
    audio: Det er Steezt å Vinne - Bonus Track
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 134.198
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.642
      additional property: Energy
        type: PropertyValue
        value: 0.555
      additional property: Speechiness
        type: PropertyValue
        value: 0.255
      additional property: Acousticness
        type: PropertyValue
        value: 0.035
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.237
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.499
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.466
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Promille I Jula
  type: MusicAlbum
  date published: 2016-12-05