Lukrecius Chang
type: MusicGroup
popularity: 4
followers: 148
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfe1fbbf7a2984f70a2e7e2a92ecaf963b6bc7ce5c79d978c7348703a98e3422b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954063
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954063
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/47bcaeca-0c7e-4157-9d82-92cc2b416bea.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/47bcaeca-0c7e-4157-9d82-92cc2b416bea.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/47bcaeca-0c7e-4157-9d82-92cc2b416bea
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T07:49:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfe1fbbf7a2984f70a2e7e2a92ecaf963b6bc7ce5c79d978c7348703a98e3422b","name":"Lukrecius Chang","registered_at":"2026-06-16T14:33:11Z","symbol":"NIM1081822","token_address":"0xb9e7aa749c89f6a66a06cb06201cb0f18ad94d27","type":"artist","uuid":"47bcaeca-0c7e-4157-9d82-92cc2b416bea"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe1fbbf7a2984f70a2e7e2a92ecaf963b6bc7ce5c79d978c7348703a98e3422b. Chain 2 (Bitcoin): anchored in block 954063 (2026-06-17T07:49:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/47bcaeca-0c7e-4157-9d82-92cc2b416bea.json and https://artists.proofprofile.net/proofs/artist/47bcaeca-0c7e-4157-9d82-92cc2b416bea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T07:49:29Z
  text: {"copyright_id":"0xfe1fbbf7a2984f70a2e7e2a92ecaf963b6bc7ce5c79d978c7348703a98e3422b","name":"Lukrecius Chang","registered_at":"2026-06-16T14:33:11Z","symbol":"NIM1081822","token_address":"0xb9e7aa749c89f6a66a06cb06201cb0f18ad94d27","type":"artist","uuid":"47bcaeca-0c7e-4157-9d82-92cc2b416bea"}
album: Jedinečný
  type: MusicAlbum
  date published: 2024-04-10
album: Lukrecius Chang - Luxus Čavo
  type: MusicAlbum
  date published: 2024-06-20
album: Čestný muž
  type: MusicAlbum
  date published: 2024-11-15
album: Kotlár Security - Strážci
  type: MusicAlbum
  date published: 2025-03-07
  track: Kotlár Security - Strážci
    type: MusicRecording
    duration: PT3M1S
    duration ms: 181894
    explicit: true
    by artist: Lukrecius Chang
    in album: Kotlár Security - Strážci
      type: MusicAlbum
      date published: 2025-03-07
    isrc code: QZHNA2500634
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T13:06:21+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x810ddfe2f0fd0808cf3a8f9ff1c1a5f1e5cca7cc84058d016bebaa1491ca2fac
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959008
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959008
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNA2500634
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T13:14:05Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810ddfe2f0fd0808cf3a8f9ff1c1a5f1e5cca7cc84058d016bebaa1491ca2fac. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/QZHNA2500634.
      date published: 2026-07-21T13:14:05Z
    audio: Kotlár Security - Strážci
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 95.01
      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: 0.749
      additional property: Energy
        type: PropertyValue
        value: 0.891
      additional property: Speechiness
        type: PropertyValue
        value: 0.142
      additional property: Acousticness
        type: PropertyValue
        value: 0.839
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.095
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.685
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.04
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Isabela K. (OBSESSION)
  type: MusicAlbum
  date published: 2025-09-24
album: Lukrecius Chang- Můj obraz
  type: MusicAlbum
  date published: 2025-11-07