无忧公子呐
type: MusicGroup
genre: gufeng
popularity: 3
followers: 37
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf28156dac51d37ad1ad3e76b9d287a2573de3bdeb95bdb2d6c9a286e8da9215b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954693
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954693
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e59b3b42-cd65-4f6b-9812-c45591c7ca18.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e59b3b42-cd65-4f6b-9812-c45591c7ca18.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e59b3b42-cd65-4f6b-9812-c45591c7ca18
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T11:50:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf28156dac51d37ad1ad3e76b9d287a2573de3bdeb95bdb2d6c9a286e8da9215b","name":"无忧公子呐","registered_at":"2026-06-21T08:31:20Z","symbol":"NIM1875774","token_address":"0x1ce2c8b98068e7198bad4cfb49f68cd8fe0df367","type":"artist","uuid":"e59b3b42-cd65-4f6b-9812-c45591c7ca18"}
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 0xf28156dac51d37ad1ad3e76b9d287a2573de3bdeb95bdb2d6c9a286e8da9215b. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e59b3b42-cd65-4f6b-9812-c45591c7ca18.json and https://artists.proofprofile.net/proofs/artist/e59b3b42-cd65-4f6b-9812-c45591c7ca18.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T11:50:32Z
  text: {"copyright_id":"0xf28156dac51d37ad1ad3e76b9d287a2573de3bdeb95bdb2d6c9a286e8da9215b","name":"无忧公子呐","registered_at":"2026-06-21T08:31:20Z","symbol":"NIM1875774","token_address":"0x1ce2c8b98068e7198bad4cfb49f68cd8fe0df367","type":"artist","uuid":"e59b3b42-cd65-4f6b-9812-c45591c7ca18"}
album: 此生不误《二哈和他的白猫师尊》纯歌版
  type: MusicAlbum
  date published: 2019-10-11
  track: 此生不误《二哈和他的白猫师尊》纯歌版
    type: MusicRecording
    duration: PT3M56S
    duration ms: 236000
    explicit: false
    by artist: 无忧公子呐
    in album: 此生不误《二哈和他的白猫师尊》纯歌版
      type: MusicAlbum
      date published: 2019-10-11
    genre: gufeng
    isrc code: QZZ972328875
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T07:18:39+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x14717694a92d0085af3ba3091244c9f3dc342174b58e63038c16226feb3e4a83
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956656
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956656
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ972328875
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T14:03:39Z
    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 0x14717694a92d0085af3ba3091244c9f3dc342174b58e63038c16226feb3e4a83. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZZ972328875.
      date published: 2026-07-04T14:03:39Z
    audio: 此生不误《二哈和他的白猫师尊》纯歌版
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 150.085
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.531
      additional property: Energy
        type: PropertyValue
        value: 0.48
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0.55
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.104
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.255
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.939
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor