Zhang Xiaoyin
type: MusicGroup
genre: traditional music
popularity: 2
followers: 137
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf3bca45bd31783e445ee70b4a82c2af6f57b4fc041c2b8950bc3bce1fad8637b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954043
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954043
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/405c85ae-9607-4496-a42b-83cc005f1d69.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/405c85ae-9607-4496-a42b-83cc005f1d69.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/405c85ae-9607-4496-a42b-83cc005f1d69
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T04:15:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf3bca45bd31783e445ee70b4a82c2af6f57b4fc041c2b8950bc3bce1fad8637b","name":"Zhang Xiaoyin","registered_at":"2026-06-16T11:58:38Z","symbol":"NIM1044954","token_address":"0x2112b2ae7524f6c178af1da1ca7fe405327cf8c3","type":"artist","uuid":"405c85ae-9607-4496-a42b-83cc005f1d69"}
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 0xf3bca45bd31783e445ee70b4a82c2af6f57b4fc041c2b8950bc3bce1fad8637b. Chain 2 (Bitcoin): anchored in block 954043 (2026-06-17T04:15:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/405c85ae-9607-4496-a42b-83cc005f1d69.json and https://artists.proofprofile.net/proofs/artist/405c85ae-9607-4496-a42b-83cc005f1d69.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T04:15:20Z
  text: {"copyright_id":"0xf3bca45bd31783e445ee70b4a82c2af6f57b4fc041c2b8950bc3bce1fad8637b","name":"Zhang Xiaoyin","registered_at":"2026-06-16T11:58:38Z","symbol":"NIM1044954","token_address":"0x2112b2ae7524f6c178af1da1ca7fe405327cf8c3","type":"artist","uuid":"405c85ae-9607-4496-a42b-83cc005f1d69"}
album: Magic from 47 Strings (Harp music)
  type: MusicAlbum
  date published: 2011-03-01