大欢
type: MusicGroup
genre: gufeng
popularity: 16
followers: 360
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x07148db2299ff53e64c7e550f41ab53184791fd77543c2a37fb1053177b492cf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953742
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953742
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a35a3886-8c46-472d-8cc4-2fd576ecf532.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a35a3886-8c46-472d-8cc4-2fd576ecf532.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a35a3886-8c46-472d-8cc4-2fd576ecf532
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T04:47:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x07148db2299ff53e64c7e550f41ab53184791fd77543c2a37fb1053177b492cf","name":"大欢","registered_at":"2026-06-14T21:34:10Z","symbol":"NIM0583165","token_address":"0x6910e0acea75099f85437d20dcca597cd9eb078b","type":"artist","uuid":"a35a3886-8c46-472d-8cc4-2fd576ecf532"}
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 0x07148db2299ff53e64c7e550f41ab53184791fd77543c2a37fb1053177b492cf. Chain 2 (Bitcoin): anchored in block 953743 (2026-06-15T04:52:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a35a3886-8c46-472d-8cc4-2fd576ecf532.json and https://artists.proofprofile.net/proofs/artist/a35a3886-8c46-472d-8cc4-2fd576ecf532.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:52:01Z
  text: {"copyright_id":"0x07148db2299ff53e64c7e550f41ab53184791fd77543c2a37fb1053177b492cf","name":"大欢","registered_at":"2026-06-14T21:34:10Z","symbol":"NIM0583165","token_address":"0x6910e0acea75099f85437d20dcca597cd9eb078b","type":"artist","uuid":"a35a3886-8c46-472d-8cc4-2fd576ecf532"}
album: 缘分墙
  type: MusicAlbum
  date published: 2022-07-01
album: 化风行万里
  type: MusicAlbum
  date published: 2022-09-10
album: 今生短暂的缘
  type: MusicAlbum
  date published: 2022-10-31
  track: 今生短暂的缘
    type: MusicRecording
    duration: PT3M46S
    duration ms: 226501
    explicit: false
    by artist: 大欢
    in album: 今生短暂的缘
      type: MusicAlbum
      date published: 2022-10-31
    genre: gufeng
    isrc code: FRX452336725
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T12:47:28+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x24a7523a1b1ec0edc4072106a3ef98386129fb5045b4e454349b554587ccf307
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959009
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959009
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX452336725
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T15:49:36Z
    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 0x24a7523a1b1ec0edc4072106a3ef98386129fb5045b4e454349b554587ccf307. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T15:49:36Z), 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/FRX452336725.
      date published: 2026-07-21T15:49:36Z
    audio: 今生短暂的缘
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 119.834
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.683
      additional property: Energy
        type: PropertyValue
        value: 0.604
      additional property: Speechiness
        type: PropertyValue
        value: 0.036
      additional property: Acousticness
        type: PropertyValue
        value: 0.794
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.105
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.41
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.19
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: 流浪的人
  type: MusicAlbum
  date published: 2022-12-03