Leoni Marx
type: MusicGroup
popularity: 4
followers: 35
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2b45ba6a9b148870a5d96ed8a05179274736a1a1644b44f667b1fcd84dce09a4
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/80baa937-4d8c-4def-aee4-046556d2979e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/80baa937-4d8c-4def-aee4-046556d2979e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/80baa937-4d8c-4def-aee4-046556d2979e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2b45ba6a9b148870a5d96ed8a05179274736a1a1644b44f667b1fcd84dce09a4","name":"Leoni Marx","registered_at":"2026-06-17T10:22:36Z","symbol":"NIM1365576","token_address":"0xbcc5b07e7354183435971fef78b04fd9ff0d95c9","type":"artist","uuid":"80baa937-4d8c-4def-aee4-046556d2979e"}
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 0x2b45ba6a9b148870a5d96ed8a05179274736a1a1644b44f667b1fcd84dce09a4. 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/80baa937-4d8c-4def-aee4-046556d2979e.json and https://artists.proofprofile.net/proofs/artist/80baa937-4d8c-4def-aee4-046556d2979e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x2b45ba6a9b148870a5d96ed8a05179274736a1a1644b44f667b1fcd84dce09a4","name":"Leoni Marx","registered_at":"2026-06-17T10:22:36Z","symbol":"NIM1365576","token_address":"0xbcc5b07e7354183435971fef78b04fd9ff0d95c9","type":"artist","uuid":"80baa937-4d8c-4def-aee4-046556d2979e"}
album: Olhar Que Vicia
  type: MusicAlbum
  date published: 2025-09-05
  track: Olhar Que Vicia
    type: MusicRecording
    duration: PT1M59S
    duration ms: 119069
    explicit: false
    by artist: Leoni Marx
    in album: Olhar Que Vicia
      type: MusicAlbum
      date published: 2025-09-05
    isrc code: QZNJZ2571066
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T09:13:50+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7114116ecc6ad38a63a8523dad0562cb6c2927e8e564ecb6e59e423a1fe52336
    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/QZNJZ2571066
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T12:16:36Z
    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 0x7114116ecc6ad38a63a8523dad0562cb6c2927e8e564ecb6e59e423a1fe52336. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:16:36Z), 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/QZNJZ2571066.
      date published: 2026-07-20T12:16:36Z
    audio: Olhar Que Vicia
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 129.04
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.859
      additional property: Energy
        type: PropertyValue
        value: 0.714
      additional property: Speechiness
        type: PropertyValue
        value: 0.09
      additional property: Acousticness
        type: PropertyValue
        value: 0.251
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.084
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.906
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.79
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Tipo Tota
  type: MusicAlbum
  date published: 2025-10-18