Victoria & Martin Lu
type: MusicGroup
popularity: 3
followers: 224
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc5b124d4c89ab0486ec71ca08eab794138404c7c39254a267fc23d3e0939750d
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/d76413e0-f821-4a5d-83c2-9e3ee6439c34.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d76413e0-f821-4a5d-83c2-9e3ee6439c34.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d76413e0-f821-4a5d-83c2-9e3ee6439c34
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc5b124d4c89ab0486ec71ca08eab794138404c7c39254a267fc23d3e0939750d","name":"Victoria & Martin Lu","registered_at":"2026-06-21T03:36:38Z","symbol":"NIM1807223","token_address":"0x53293981db2cdb943fe27cc934f8c7088abb20b6","type":"artist","uuid":"d76413e0-f821-4a5d-83c2-9e3ee6439c34"}
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 0xc5b124d4c89ab0486ec71ca08eab794138404c7c39254a267fc23d3e0939750d. 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/d76413e0-f821-4a5d-83c2-9e3ee6439c34.json and https://artists.proofprofile.net/proofs/artist/d76413e0-f821-4a5d-83c2-9e3ee6439c34.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xc5b124d4c89ab0486ec71ca08eab794138404c7c39254a267fc23d3e0939750d","name":"Victoria & Martin Lu","registered_at":"2026-06-21T03:36:38Z","symbol":"NIM1807223","token_address":"0x53293981db2cdb943fe27cc934f8c7088abb20b6","type":"artist","uuid":"d76413e0-f821-4a5d-83c2-9e3ee6439c34"}
album: Leisk
  type: MusicAlbum
  date published: 2016-06-14
album: Leisk
  type: MusicAlbum
  date published: 2016-06-14
  track: Leisk
    type: MusicRecording
    duration: PT3M24S
    duration ms: 204532
    explicit: false
    by artist: Victoria & Martin Lu
    in album: Leisk
      type: MusicAlbum
      date published: 2016-06-14
    isrc code: GB8KE1555683
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T09:03:38+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x1b3d9e7776693acb69f48e6c03921550b350f845f8e3a5b9552900ac6016ebf3
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958857
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958857
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB8KE1555683
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T12:05:13Z
    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 0x1b3d9e7776693acb69f48e6c03921550b350f845f8e3a5b9552900ac6016ebf3. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:05:13Z), 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/GB8KE1555683.
      date published: 2026-07-20T12:05:13Z
    audio: Leisk
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 114.979
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.763
      additional property: Energy
        type: PropertyValue
        value: 0.583
      additional property: Speechiness
        type: PropertyValue
        value: 0.046
      additional property: Acousticness
        type: PropertyValue
        value: 0.179
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.386
      additional property: Liveness
        type: PropertyValue
        value: 0.131
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.507
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.789
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Leisk
  type: MusicAlbum
  date published: 2016-06-14
album: Noriu Vel
  type: MusicAlbum
  date published: 2016-09-18
album: Noriu Vel
  type: MusicAlbum
  date published: 2016-09-18
album: Noriu Vel
  type: MusicAlbum
  date published: 2016-09-18
album: Leisk (Acoustic)
  type: MusicAlbum
  date published: 2017-01-19
album: Nauja Pradžia
  type: MusicAlbum
  date published: 2017-02-03
album: Tyli Naktis
  type: MusicAlbum
  date published: 2017-02-03
album: Nauja PradÅ¾ia
  type: MusicAlbum
  date published: 2017-02-03
album: Tyli Naktis
  type: MusicAlbum
  date published: 2017-02-03