华彦钧
type: MusicGroup
album: 昭君出塞
  type: MusicAlbum
  date published: 2024-01-12
album: 听松
  type: MusicAlbum
  date published: 2024-01-12
album: 二泉映月
  type: MusicAlbum
  date published: 2024-01-12
track: 大浪淘沙（Great Waves Sweaping Away Sand）
  type: MusicRecording
  duration: PT4M31S
  duration ms: 271957
  explicit: false
  by artist: 华彦钧
  by artist: Zhang Qiang
  in album: 中国琵琶名曲
    type: MusicAlbum
    date published: 2021-05-28
  isrc code: CNZ391600073
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T16:06:35+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xaa5d7ac4e0342458627d9377d05cde5f45ad94b6687c9b5e417e0868d8c1288f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960435
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960435
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CNZ391600073
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T16:33:26Z
  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 0xaa5d7ac4e0342458627d9377d05cde5f45ad94b6687c9b5e417e0868d8c1288f. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/CNZ391600073 — a six-check JSON result.
    date published: 2026-07-31T16:33:26Z
  audio: 大浪淘沙（Great Waves Sweaping Away Sand）
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 109.169
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.429
    additional property: Energy
      type: PropertyValue
      value: 0.136
    additional property: Speechiness
      type: PropertyValue
      value: 0.06
    additional property: Acousticness
      type: PropertyValue
      value: 0.906
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.941
    additional property: Liveness
      type: PropertyValue
      value: 0.108
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.439
    additional property: Loudness (dB)
      type: PropertyValue
      value: -21.406
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: 昭君出塞（Zhaojun's Departure for the Frontier）
  type: MusicRecording
  duration: PT4M47S
  duration ms: 287620
  explicit: false
  by artist: 华彦钧
  by artist: Zhang Qiang
  in album: 中国琵琶名曲
    type: MusicAlbum
    date published: 2021-05-28
  isrc code: CNZ391600075
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T18:08:52+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4da50a45c18917b5bc20a75edb8c5e436ec0b38e0c2a561f725dbb1880298257
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957122
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957122
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CNZ391600075
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:39:04Z
  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 0x4da50a45c18917b5bc20a75edb8c5e436ec0b38e0c2a561f725dbb1880298257. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/CNZ391600075 — a six-check JSON result.
    date published: 2026-07-08T03:39:04Z
  audio: 昭君出塞（Zhaojun's Departure for the Frontier）
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 128.365
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.519
    additional property: Energy
      type: PropertyValue
      value: 0.156
    additional property: Speechiness
      type: PropertyValue
      value: 0.052
    additional property: Acousticness
      type: PropertyValue
      value: 0.906
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.917
    additional property: Liveness
      type: PropertyValue
      value: 0.078
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.371
    additional property: Loudness (dB)
      type: PropertyValue
      value: -22.091
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major