羅瑜嘉
type: MusicGroup
popularity: 2
followers: 54
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4c783c0e6e1573caa9462db7120ac975b3254a7e52ac7c9cba904861710c827c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954587
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954587
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/baf5417d-a842-48a5-9bba-4ac44cd277ae.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/baf5417d-a842-48a5-9bba-4ac44cd277ae.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/baf5417d-a842-48a5-9bba-4ac44cd277ae
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:10:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4c783c0e6e1573caa9462db7120ac975b3254a7e52ac7c9cba904861710c827c","name":"羅瑜嘉","registered_at":"2026-06-20T16:59:59Z","symbol":"NIM1659648","token_address":"0x5cab2add2ce356c51f736bb78e37997b7c0922ad","type":"artist","uuid":"baf5417d-a842-48a5-9bba-4ac44cd277ae"}
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 0x4c783c0e6e1573caa9462db7120ac975b3254a7e52ac7c9cba904861710c827c. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/baf5417d-a842-48a5-9bba-4ac44cd277ae.json and https://artists.proofprofile.net/proofs/artist/baf5417d-a842-48a5-9bba-4ac44cd277ae.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:10:41Z
  text: {"copyright_id":"0x4c783c0e6e1573caa9462db7120ac975b3254a7e52ac7c9cba904861710c827c","name":"羅瑜嘉","registered_at":"2026-06-20T16:59:59Z","symbol":"NIM1659648","token_address":"0x5cab2add2ce356c51f736bb78e37997b7c0922ad","type":"artist","uuid":"baf5417d-a842-48a5-9bba-4ac44cd277ae"}
album: 普通觀眾
  type: MusicAlbum
  date published: 2022-12-23
  track: 普通觀眾
    type: MusicRecording
    duration: PT4M36S
    duration ms: 276818
    explicit: false
    by artist: 羅瑜嘉
    in album: 普通觀眾
      type: MusicAlbum
      date published: 2022-12-23
    isrc code: TWV812282201
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T19:16:15+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa47d1cad8889fc019b6f7dcdc7fc1622a0d527d3edb236b8df33183b635bae1d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958771
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958771
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWV812282201
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T22:19:43Z
    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 0xa47d1cad8889fc019b6f7dcdc7fc1622a0d527d3edb236b8df33183b635bae1d. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:19:43Z), 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/TWV812282201.
      date published: 2026-07-19T22:19:43Z
    audio: 普通觀眾
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 176.034
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.348
      additional property: Energy
        type: PropertyValue
        value: 0.41
      additional property: Speechiness
        type: PropertyValue
        value: 0.033
      additional property: Acousticness
        type: PropertyValue
        value: 0.798
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.119
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.425
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.733
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 風箏
  type: MusicAlbum
  date published: 2023-01-10