顏志恒
type: MusicGroup
genre: cantopop
popularity: 5
followers: 40
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfb08509fa4b22e73dc733c850022d77269b108475325fadbeec7fc849b0ddd04
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954729
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954729
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fb8a2743-d796-47e5-bdd9-2ab2116f5d44.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fb8a2743-d796-47e5-bdd9-2ab2116f5d44.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fb8a2743-d796-47e5-bdd9-2ab2116f5d44
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:16:07Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfb08509fa4b22e73dc733c850022d77269b108475325fadbeec7fc849b0ddd04","name":"顏志恒","registered_at":"2026-06-21T17:09:35Z","symbol":"NIM1982159","token_address":"0x4e77e38c875762f03d75946e6fcbf4d5857ca3d8","type":"artist","uuid":"fb8a2743-d796-47e5-bdd9-2ab2116f5d44"}
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 0xfb08509fa4b22e73dc733c850022d77269b108475325fadbeec7fc849b0ddd04. Chain 2 (Bitcoin): anchored in block 954729 (2026-06-21T18:16:07Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fb8a2743-d796-47e5-bdd9-2ab2116f5d44.json and https://artists.proofprofile.net/proofs/artist/fb8a2743-d796-47e5-bdd9-2ab2116f5d44.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:16:07Z
  text: {"copyright_id":"0xfb08509fa4b22e73dc733c850022d77269b108475325fadbeec7fc849b0ddd04","name":"顏志恒","registered_at":"2026-06-21T17:09:35Z","symbol":"NIM1982159","token_address":"0x4e77e38c875762f03d75946e6fcbf4d5857ca3d8","type":"artist","uuid":"fb8a2743-d796-47e5-bdd9-2ab2116f5d44"}
album: 浴室歌王
  type: MusicAlbum
  date published: 2025-03-27
album: 浴室歌王
  type: MusicAlbum
  date published: 2025-03-27
  track: 浴室歌王
    type: MusicRecording
    duration: PT3M55S
    duration ms: 235000
    explicit: false
    by artist: 顏志恒
    in album: 浴室歌王
      type: MusicAlbum
      date published: 2025-03-27
    genre: cantopop
    isrc code: HKJ342550001
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T00:33:02+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xad79fff81e88b87a7a179aae4cb5d0110245e59a1f63e9fe63b982883d18f089
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958095
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958095
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKJ342550001
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T04:30:08Z
    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 0xad79fff81e88b87a7a179aae4cb5d0110245e59a1f63e9fe63b982883d18f089. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/HKJ342550001.
      date published: 2026-07-15T04:30:08Z
    audio: 浴室歌王
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 131.943
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.56
      additional property: Energy
        type: PropertyValue
        value: 0.599
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      additional property: Acousticness
        type: PropertyValue
        value: 0.35
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.132
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.598
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.123
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major