快乐合唱
type: MusicGroup
popularity: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbad5f8c4a544baa19b38f343cf881d7ec34249efc14e6af59a80461dd953d667
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954549
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a82a1c9d-b83e-40b3-a188-eda4c0b6daf3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a82a1c9d-b83e-40b3-a188-eda4c0b6daf3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a82a1c9d-b83e-40b3-a188-eda4c0b6daf3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T10:56:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbad5f8c4a544baa19b38f343cf881d7ec34249efc14e6af59a80461dd953d667","name":"快乐合唱","registered_at":"2026-06-20T08:40:06Z","symbol":"NIM1567975","token_address":"0x1436e998039a626d7123af645a96cf28ed1cac56","type":"artist","uuid":"a82a1c9d-b83e-40b3-a188-eda4c0b6daf3"}
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 0xbad5f8c4a544baa19b38f343cf881d7ec34249efc14e6af59a80461dd953d667. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a82a1c9d-b83e-40b3-a188-eda4c0b6daf3.json and https://artists.proofprofile.net/proofs/artist/a82a1c9d-b83e-40b3-a188-eda4c0b6daf3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T10:56:20Z
  text: {"copyright_id":"0xbad5f8c4a544baa19b38f343cf881d7ec34249efc14e6af59a80461dd953d667","name":"快乐合唱","registered_at":"2026-06-20T08:40:06Z","symbol":"NIM1567975","token_address":"0x1436e998039a626d7123af645a96cf28ed1cac56","type":"artist","uuid":"a82a1c9d-b83e-40b3-a188-eda4c0b6daf3"}
album: 梦想起航
  type: MusicAlbum
  date published: 2024-12-24
  track: 梦想起航
    type: MusicRecording
    duration: PT2M40S
    duration ms: 160078
    explicit: false
    by artist: 快乐合唱
    in album: 梦想起航
      type: MusicAlbum
      date published: 2024-12-24
    isrc code: FR10S2519097
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T08:30:30+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x26c11a73c7026cdd36ca1bc92645f09cb9118f82a3b905dca9963b54055af1c0
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958988
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958988
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR10S2519097
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T11:32:06Z
    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 0x26c11a73c7026cdd36ca1bc92645f09cb9118f82a3b905dca9963b54055af1c0. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T11:32:06Z), 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/FR10S2519097.
      date published: 2026-07-21T11:32:06Z
    audio: 梦想起航
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 66.126
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.129
      additional property: Energy
        type: PropertyValue
        value: 0.438
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0.819
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.105
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.277
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.876
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major