Marta Kalani
type: MusicGroup
popularity: 5
followers: 134
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6cec7792e65520d74d5acfd8c2d0b983e1c73e3492b9cb6e7c7c7c915abf0552
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/8c172d10-8014-4e15-bab9-80be9168eb1f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8c172d10-8014-4e15-bab9-80be9168eb1f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8c172d10-8014-4e15-bab9-80be9168eb1f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6cec7792e65520d74d5acfd8c2d0b983e1c73e3492b9cb6e7c7c7c915abf0552","name":"Marta Kalani","registered_at":"2026-06-17T14:34:18Z","symbol":"NIM1425531","token_address":"0x424229fb2c170d36a83d5e375abf8c4f998a7546","type":"artist","uuid":"8c172d10-8014-4e15-bab9-80be9168eb1f"}
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 0x6cec7792e65520d74d5acfd8c2d0b983e1c73e3492b9cb6e7c7c7c915abf0552. 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/8c172d10-8014-4e15-bab9-80be9168eb1f.json and https://artists.proofprofile.net/proofs/artist/8c172d10-8014-4e15-bab9-80be9168eb1f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x6cec7792e65520d74d5acfd8c2d0b983e1c73e3492b9cb6e7c7c7c915abf0552","name":"Marta Kalani","registered_at":"2026-06-17T14:34:18Z","symbol":"NIM1425531","token_address":"0x424229fb2c170d36a83d5e375abf8c4f998a7546","type":"artist","uuid":"8c172d10-8014-4e15-bab9-80be9168eb1f"}
album: Twin Flames
  type: MusicAlbum
  date published: 2024-09-21
album: You & I
  type: MusicAlbum
  date published: 2025-01-25
  track: You & I
    type: MusicRecording
    duration: PT3M41S
    duration ms: 221707
    explicit: false
    by artist: Marta Kalani
    in album: You & I
      type: MusicAlbum
      date published: 2025-01-25
    isrc code: AUP0V2400002
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T02:23:53+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xdf6085e7eac505f0f170d19b66c2a149535e1605bac0abd27e1e467dbd61dd5c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956656
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956656
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUP0V2400002
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T14:03:39Z
    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 0xdf6085e7eac505f0f170d19b66c2a149535e1605bac0abd27e1e467dbd61dd5c. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/AUP0V2400002.
      date published: 2026-07-04T14:03:39Z
    audio: You & I
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 82.069
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.572
      additional property: Energy
        type: PropertyValue
        value: 0.376
      additional property: Speechiness
        type: PropertyValue
        value: 0.042
      additional property: Acousticness
        type: PropertyValue
        value: 0.777
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.133
      additional property: Liveness
        type: PropertyValue
        value: 0.327
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.29
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.966
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Major