劉端端
type: MusicGroup
genre: c-pop
popularity: 6
followers: 152
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe890a152b998a02ac3c2a4a2f814b951cdc6b39b66253b07fc2e4cddf1231167
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3e683949-769a-43e9-9032-551d5a3fd9f4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3e683949-769a-43e9-9032-551d5a3fd9f4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3e683949-769a-43e9-9032-551d5a3fd9f4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe890a152b998a02ac3c2a4a2f814b951cdc6b39b66253b07fc2e4cddf1231167","name":"劉端端","registered_at":"2026-06-16T11:21:34Z","symbol":"NIM1036120","token_address":"0xc831014ac6efd803c60e536afbc071c5397ae067","type":"artist","uuid":"3e683949-769a-43e9-9032-551d5a3fd9f4"}
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 0xe890a152b998a02ac3c2a4a2f814b951cdc6b39b66253b07fc2e4cddf1231167. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3e683949-769a-43e9-9032-551d5a3fd9f4.json and https://artists.proofprofile.net/proofs/artist/3e683949-769a-43e9-9032-551d5a3fd9f4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0xe890a152b998a02ac3c2a4a2f814b951cdc6b39b66253b07fc2e4cddf1231167","name":"劉端端","registered_at":"2026-06-16T11:21:34Z","symbol":"NIM1036120","token_address":"0xc831014ac6efd803c60e536afbc071c5397ae067","type":"artist","uuid":"3e683949-769a-43e9-9032-551d5a3fd9f4"}
album: 電視劇《小丈夫》
  type: MusicAlbum
  date published: 2016-04-29
album: 如果遇見你 電視劇《連升三級》片尾曲
  type: MusicAlbum
  date published: 2018-11-07
album: 想起-電視劇《海棠經雨胭脂透》插曲
  type: MusicAlbum
  date published: 2019-10-28
album: 想起 電視劇《海棠經雨胭脂透》插曲
  type: MusicAlbum
  date published: 2019-10-28
album: 星空（電視劇《追光者》片頭曲）
  type: MusicAlbum
  date published: 2022-10-13
  track: 星空
    type: MusicRecording
    duration: PT4M59S
    duration ms: 299720
    explicit: false
    by artist: 劉端端
    in album: 星空（電視劇《追光者》片頭曲）
      type: MusicAlbum
      date published: 2022-10-13
    genre: c-pop
    isrc code: TWD252200602
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T12:54:58+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x044c9d8a388bc1b924516323963d07280b1a11c40759a367c4a75fa8d818244f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958157
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958157
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWD252200602
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T13:14:32Z
    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 0x044c9d8a388bc1b924516323963d07280b1a11c40759a367c4a75fa8d818244f. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/TWD252200602.
      date published: 2026-07-15T13:14:32Z
    audio: 星空
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 144.003
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.464
      additional property: Energy
        type: PropertyValue
        value: 0.773
      additional property: Speechiness
        type: PropertyValue
        value: 0.074
      additional property: Acousticness
        type: PropertyValue
        value: 0.085
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.107
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.133
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.345
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 星空-（電視劇《追光者》片頭曲）
  type: MusicAlbum
  date published: 2022-10-13