lucca kang
type: MusicGroup
popularity: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2cca229a236a58de2cfeb56fd340acd217be63f147ded7326e318c5e559216a9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/96e4a4ec-6eeb-4b0a-8133-4e530bea8887.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/96e4a4ec-6eeb-4b0a-8133-4e530bea8887.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/96e4a4ec-6eeb-4b0a-8133-4e530bea8887
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2cca229a236a58de2cfeb56fd340acd217be63f147ded7326e318c5e559216a9","name":"lucca kang","registered_at":"2026-06-17T18:04:35Z","symbol":"NIM1475737","token_address":"0x7d28265a14f44cf1838fbd9e65e25a5eb41b2c2a","type":"artist","uuid":"96e4a4ec-6eeb-4b0a-8133-4e530bea8887"}
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 0x2cca229a236a58de2cfeb56fd340acd217be63f147ded7326e318c5e559216a9. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/96e4a4ec-6eeb-4b0a-8133-4e530bea8887.json and https://artists.proofprofile.net/proofs/artist/96e4a4ec-6eeb-4b0a-8133-4e530bea8887.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0x2cca229a236a58de2cfeb56fd340acd217be63f147ded7326e318c5e559216a9","name":"lucca kang","registered_at":"2026-06-17T18:04:35Z","symbol":"NIM1475737","token_address":"0x7d28265a14f44cf1838fbd9e65e25a5eb41b2c2a","type":"artist","uuid":"96e4a4ec-6eeb-4b0a-8133-4e530bea8887"}
album: hard days
  type: MusicAlbum
  date published: 2025-06-06
  track: hard days
    type: MusicRecording
    duration: PT2M21S
    duration ms: 141840
    explicit: false
    by artist: lucca kang
    in album: hard days
      type: MusicAlbum
      date published: 2025-06-06
    isrc code: AEA3A2148088
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T09:00:59+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2173c26e548bff5933323e6182c550056b7cfbd87fa180ec3c12cb38d689b8d2
    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/AEA3A2148088
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T12:02:22Z
    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 0x2173c26e548bff5933323e6182c550056b7cfbd87fa180ec3c12cb38d689b8d2. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:02:22Z), 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/AEA3A2148088.
      date published: 2026-07-20T12:02:22Z
    audio: hard days
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 150.041
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.8
      additional property: Energy
        type: PropertyValue
        value: 0.161
      additional property: Speechiness
        type: PropertyValue
        value: 0.331
      additional property: Acousticness
        type: PropertyValue
        value: 0.567
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.12
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.569
      additional property: Loudness (dB)
        type: PropertyValue
        value: -15.203
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: violet
  type: MusicAlbum
  date published: 2025-06-24