LAYLA CHANG
type: MusicGroup
popularity: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2cb9e89629ae5a32e894e61864740abeb8c8ba5ff3e6bc3adaa39cecaf9de8c2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954693
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954693
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e4bfb5a6-7266-4473-8c37-272c2a1f69d2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e4bfb5a6-7266-4473-8c37-272c2a1f69d2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e4bfb5a6-7266-4473-8c37-272c2a1f69d2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T11:50:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2cb9e89629ae5a32e894e61864740abeb8c8ba5ff3e6bc3adaa39cecaf9de8c2","name":"LAYLA CHANG","registered_at":"2026-06-21T08:04:31Z","symbol":"NIM1870205","token_address":"0xee981a4c8d40851f9e942fc8e2bc4377c379bcd4","type":"artist","uuid":"e4bfb5a6-7266-4473-8c37-272c2a1f69d2"}
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 0x2cb9e89629ae5a32e894e61864740abeb8c8ba5ff3e6bc3adaa39cecaf9de8c2. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e4bfb5a6-7266-4473-8c37-272c2a1f69d2.json and https://artists.proofprofile.net/proofs/artist/e4bfb5a6-7266-4473-8c37-272c2a1f69d2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T11:50:32Z
  text: {"copyright_id":"0x2cb9e89629ae5a32e894e61864740abeb8c8ba5ff3e6bc3adaa39cecaf9de8c2","name":"LAYLA CHANG","registered_at":"2026-06-21T08:04:31Z","symbol":"NIM1870205","token_address":"0xee981a4c8d40851f9e942fc8e2bc4377c379bcd4","type":"artist","uuid":"e4bfb5a6-7266-4473-8c37-272c2a1f69d2"}
album: Siva
  type: MusicAlbum
  date published: 2025-07-25
  track: Siva
    type: MusicRecording
    duration: PT1M19S
    duration ms: 79553
    explicit: false
    by artist: LAYLA CHANG
    in album: Siva
      type: MusicAlbum
      date published: 2025-07-25
    isrc code: GXHAF2514807
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T23:13:17+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5e08ea43cefaa00d20d138a73f1255a2b9bd1c94ab98d95b8ec8a0b62cfed0be
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958340
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958340
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GXHAF2514807
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T02:19:07Z
    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 0x5e08ea43cefaa00d20d138a73f1255a2b9bd1c94ab98d95b8ec8a0b62cfed0be. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:19:07Z), 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/GXHAF2514807.
      date published: 2026-07-17T02:19:07Z
    audio: Siva
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 117.706
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.722
      additional property: Energy
        type: PropertyValue
        value: 0.697
      additional property: Speechiness
        type: PropertyValue
        value: 0.059
      additional property: Acousticness
        type: PropertyValue
        value: 0.068
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.931
      additional property: Liveness
        type: PropertyValue
        value: 0.141
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.036
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.077
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor