A公館
type: MusicGroup
genre: chinese indie
genre: chinese rock
genre: mandopop
popularity: 4
followers: 1083
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xffe6e47cb94e51e2bdba4d3f3e427b87bb2ae697ddb451b27b1743690d73dca5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954689
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954689
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e20ff950-462b-4e02-ae1c-d9b56a266b11.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e20ff950-462b-4e02-ae1c-d9b56a266b11.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e20ff950-462b-4e02-ae1c-d9b56a266b11
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T10:35:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xffe6e47cb94e51e2bdba4d3f3e427b87bb2ae697ddb451b27b1743690d73dca5","name":"A公館","registered_at":"2026-06-21T07:07:25Z","symbol":"NIM1857014","token_address":"0x15afb29a9e6e084373f6d204a33818f45d9063be","type":"artist","uuid":"e20ff950-462b-4e02-ae1c-d9b56a266b11"}
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 0xffe6e47cb94e51e2bdba4d3f3e427b87bb2ae697ddb451b27b1743690d73dca5. Chain 2 (Bitcoin): anchored in block 954689 (2026-06-21T10:35:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e20ff950-462b-4e02-ae1c-d9b56a266b11.json and https://artists.proofprofile.net/proofs/artist/e20ff950-462b-4e02-ae1c-d9b56a266b11.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T10:35:31Z
  text: {"copyright_id":"0xffe6e47cb94e51e2bdba4d3f3e427b87bb2ae697ddb451b27b1743690d73dca5","name":"A公館","registered_at":"2026-06-21T07:07:25Z","symbol":"NIM1857014","token_address":"0x15afb29a9e6e084373f6d204a33818f45d9063be","type":"artist","uuid":"e20ff950-462b-4e02-ae1c-d9b56a266b11"}
album: 請用身體砸碎欲望逃生
  type: MusicAlbum
  date published: 2012-02-26
album: 中華兒女
  type: MusicAlbum
  date published: 2019-09-29
album: 萬物有光
  type: MusicAlbum
  date published: 2019-12-27
  track: 放漾
    type: MusicRecording
    duration: PT5M15S
    duration ms: 315605
    explicit: false
    by artist: A公館
    in album: 萬物有光
      type: MusicAlbum
      date published: 2019-12-27
    genre: chinese indie
    genre: chinese rock
    genre: mandopop
    isrc code: CNA791901544
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T03:42:59+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6c6e15bc5fb62e1778a43a18f0615ddd17f15a71e09531925c5136c71ec6cd8a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958653
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958653
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CNA791901544
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T03:54:23Z
    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 0x6c6e15bc5fb62e1778a43a18f0615ddd17f15a71e09531925c5136c71ec6cd8a. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/CNA791901544.
      date published: 2026-07-19T03:54:23Z
    audio: 放漾
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 127.008
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.585
      additional property: Energy
        type: PropertyValue
        value: 0.922
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0.152
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.201
      additional property: Liveness
        type: PropertyValue
        value: 0.134
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.636
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.494
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 擁抱春天 （中比合作版 ） （feat.Témé Tan)
  type: MusicAlbum
  date published: 2020-07-10
album: 濾鏡
  type: MusicAlbum
  date published: 2022-02-14