周延英(英子 effie)
type: MusicGroup
genre: chinese r&b
genre: c-pop
genre: mandopop
popularity: 25
followers: 239
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcfd48a130400ace775aa725b46052b7b3d161f684a8a56e417d24b0d0d2db810
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953408
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953408
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d3f5ce6f-22eb-41fb-b7c0-085c40dbd5f8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d3f5ce6f-22eb-41fb-b7c0-085c40dbd5f8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d3f5ce6f-22eb-41fb-b7c0-085c40dbd5f8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:28:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcfd48a130400ace775aa725b46052b7b3d161f684a8a56e417d24b0d0d2db810","name":"周延英(英子 effie)","registered_at":"2026-06-12T10:43:42Z","symbol":"NIM0273591","token_address":"0xf3f3892cf8ec202431aaddc635d62ecc3b2b1389","type":"artist","uuid":"d3f5ce6f-22eb-41fb-b7c0-085c40dbd5f8"}
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 0xcfd48a130400ace775aa725b46052b7b3d161f684a8a56e417d24b0d0d2db810. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d3f5ce6f-22eb-41fb-b7c0-085c40dbd5f8.json and https://artists.proofprofile.net/proofs/artist/d3f5ce6f-22eb-41fb-b7c0-085c40dbd5f8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
  text: {"copyright_id":"0xcfd48a130400ace775aa725b46052b7b3d161f684a8a56e417d24b0d0d2db810","name":"周延英(英子 effie)","registered_at":"2026-06-12T10:43:42Z","symbol":"NIM0273591","token_address":"0xf3f3892cf8ec202431aaddc635d62ecc3b2b1389","type":"artist","uuid":"d3f5ce6f-22eb-41fb-b7c0-085c40dbd5f8"}
album: 你听听
  type: MusicAlbum
  date published: 2021-04-17
album: 过时的歌
  type: MusicAlbum
  date published: 2021-12-19
album: 一了百了
  type: MusicAlbum
  date published: 2022-09-05
  track: 一了百了
    type: MusicRecording
    duration: PT3M5S
    duration ms: 185084
    explicit: false
    by artist: 周延英(英子 effie)
    in album: 一了百了
      type: MusicAlbum
      date published: 2022-09-05
    genre: chinese r&b
    genre: c-pop
    genre: mandopop
    isrc code: FRX762210304
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-04T15:09:35+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x937b6fcb314e0d803344c4e7197d201ee69aa8823dbd2a443f06bc8a316bae83
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 953513
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/953513
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX762210304
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-06-13T12:47:07Z
    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 0x937b6fcb314e0d803344c4e7197d201ee69aa8823dbd2a443f06bc8a316bae83. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FRX762210304.
      date published: 2026-06-13T12:47:07Z
    audio: 一了百了
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 96.954
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.651
      additional property: Energy
        type: PropertyValue
        value: 0.621
      additional property: Speechiness
        type: PropertyValue
        value: 0.029
      additional property: Acousticness
        type: PropertyValue
        value: 0.108
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.133
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.707
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.065
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major