史九87
type: MusicGroup
genre: mandopop
genre: taiwanese pop
popularity: 12
followers: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb1b4877427963b4deaf5c962657bca4b8b5ea86e0cdb293976b86e8e884b0afc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953791
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953791
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dbb015b7-0c29-4f87-997b-39a630069b33.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dbb015b7-0c29-4f87-997b-39a630069b33.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dbb015b7-0c29-4f87-997b-39a630069b33
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T13:40:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb1b4877427963b4deaf5c962657bca4b8b5ea86e0cdb293976b86e8e884b0afc","name":"史九87","registered_at":"2026-06-15T03:36:49Z","symbol":"NIM0669776","token_address":"0x3d8765071d852b86ddd1bfc556f99a504f0f76d3","type":"artist","uuid":"dbb015b7-0c29-4f87-997b-39a630069b33"}
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 0xb1b4877427963b4deaf5c962657bca4b8b5ea86e0cdb293976b86e8e884b0afc. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dbb015b7-0c29-4f87-997b-39a630069b33.json and https://artists.proofprofile.net/proofs/artist/dbb015b7-0c29-4f87-997b-39a630069b33.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T13:40:30Z
  text: {"copyright_id":"0xb1b4877427963b4deaf5c962657bca4b8b5ea86e0cdb293976b86e8e884b0afc","name":"史九87","registered_at":"2026-06-15T03:36:49Z","symbol":"NIM0669776","token_address":"0x3d8765071d852b86ddd1bfc556f99a504f0f76d3","type":"artist","uuid":"dbb015b7-0c29-4f87-997b-39a630069b33"}
track: We Are, We Can Be
  type: MusicRecording
  duration: PT4M0S
  duration ms: 240000
  explicit: false
  by artist: Princess Ai
  by artist: Ella Chen
  by artist: Yuki Hsu
  by artist: Control T
  by artist: 理想混蛋 雞丁
  by artist: Evangeline Wong
  by artist: 小盛
  by artist: 劉學甫
  by artist: 夫夫之道
  by artist: FJ234-Josh
  by artist: FJ234-FuFu
  by artist: 陳瑽
  by artist: 李佳歡
  by artist: 鄭可強
  by artist: 那那大師
  by artist: DJ Ken Lin 林軒
  by artist: 豪大夫
  by artist: 黃氏兄弟瑋瑋
  by artist: 阿古
  by artist: Vicky Chen
  by artist: 游泳教練Yilian
  by artist: 阿畫
  by artist: 許維芳
  by artist: 阿卡貝拉－卡卡
  by artist: 阿卡貝拉－貝拉
  by artist: 小銘小玄
  by artist: 舜舜安仔
  by artist: Soya手癢計畫
  by artist: 瑩真律師
  by artist: 大賈遇頭
  by artist: 哆啦女神
  by artist: Joe 周賢忠
  by artist: 傳播弟
  by artist: 祐銘 Yu Ming
  by artist: 泰辣 Tyla
  by artist: 史九87
  by artist: 二哥
  by artist: 三原JAPAN
  by artist: 黃小愛
  by artist: Alizabeth 娘娘
  by artist: 企鵝 Renguin
  by artist: 楊艾萱 Iris
  by artist: Claven
  by artist: 琟娜 Verna
  in album: We Are, We Can Be
    type: MusicAlbum
    date published: 2020-10-15
  isrc code: TWCC32008316
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-08T06:21:35+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xfd52f201f0dd15d7c98b792871f5ce541c3ae4f201a53df35bdb999fd6217151
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953520
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/953520
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWCC32008316
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T13:32:09Z
  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 0xfd52f201f0dd15d7c98b792871f5ce541c3ae4f201a53df35bdb999fd6217151. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TWCC32008316.
    date published: 2026-06-13T13:32:09Z
  audio: We Are, We Can Be
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 101.769
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.496
    additional property: Energy
      type: PropertyValue
      value: 0.554
    additional property: Speechiness
      type: PropertyValue
      value: 0.029
    additional property: Acousticness
      type: PropertyValue
      value: 0.05
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.052
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.217
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.416
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major