杏
type: MusicGroup
popularity: 10
followers: 71
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x869a63bd1934def2d43d71342415469743a67fb586434ec67c056f5b389ac03b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954603
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954603
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c3304344-c88e-47f6-abba-0c5ccc4206ea.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c3304344-c88e-47f6-abba-0c5ccc4206ea.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c3304344-c88e-47f6-abba-0c5ccc4206ea
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x869a63bd1934def2d43d71342415469743a67fb586434ec67c056f5b389ac03b","name":"杏","registered_at":"2026-06-20T20:15:02Z","symbol":"NIM1703426","token_address":"0x323971ca138b9b98f7d146a0b5ed37edf9bd9dbd","type":"artist","uuid":"c3304344-c88e-47f6-abba-0c5ccc4206ea"}
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 0x869a63bd1934def2d43d71342415469743a67fb586434ec67c056f5b389ac03b. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c3304344-c88e-47f6-abba-0c5ccc4206ea.json and https://artists.proofprofile.net/proofs/artist/c3304344-c88e-47f6-abba-0c5ccc4206ea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T21:47:54Z
  text: {"copyright_id":"0x869a63bd1934def2d43d71342415469743a67fb586434ec67c056f5b389ac03b","name":"杏","registered_at":"2026-06-20T20:15:02Z","symbol":"NIM1703426","token_address":"0x323971ca138b9b98f7d146a0b5ed37edf9bd9dbd","type":"artist","uuid":"c3304344-c88e-47f6-abba-0c5ccc4206ea"}
album: stack
  type: MusicAlbum
  date published: 2024-08-15
album: 18 Cinderella
  type: MusicAlbum
  date published: 2024-08-25
album: 夏が終わる前に
  type: MusicAlbum
  date published: 2024-10-14