滅火器
type: MusicGroup
genre: chinese hip hop
genre: taiwanese indie
genre: taiwanese pop
popularity: 22
followers: 1
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additional property: CopyrightChainExplorerURL
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additional property: OTSVerifyInstructions
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  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
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  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xf83585bedbb1b30b414a5f9ab06b48cf7ae59afa703cef56c40306a3e6a89785","name":"滅火器","registered_at":"2026-06-12T09:45:17Z","symbol":"NIM0260087","token_address":"0x84f6147901f9c812688a2d23bb1099e1a96d2c80","type":"artist","uuid":"c9410ef3-9581-4b65-a39c-149caa158eeb"}
track: 無名英雄 - 大嘻哈時代 Version
  type: MusicRecording
  duration: PT3M41S
  duration ms: 221647
  explicit: false
  by artist: Fire EX.
  by artist: 馬克SAVAGE.M
  by artist: 阿跨面
  by artist: 滅火器
  in album: 大嘻哈時代2: ROLL CALL 街頭支援
    type: MusicAlbum
    date published: 2023-03-28
  isrc code: TWJK12200258
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  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 0xb97be9c78767d873c2a505ef7d1fffdefe75c7cde789f9feb0454a18f151d5ce. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWJK12200258 — a six-check JSON result.
    date published: 2026-06-13T12:47:07Z
  audio: 無名英雄 - 大嘻哈時代 Version
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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      value: 0.149
    additional property: Valence (Positivity)
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      value: 0.589
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.788
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major