川中順子
type: MusicGroup
popularity: 4
followers: 77
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xea4c90f222de30a3109cd90b1836198b0b125b06f981a73baebfb3a900856bb7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954513
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a0a44004-9948-4c82-ae94-595f4a7fec55.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a0a44004-9948-4c82-ae94-595f4a7fec55.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a0a44004-9948-4c82-ae94-595f4a7fec55
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T06:31:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xea4c90f222de30a3109cd90b1836198b0b125b06f981a73baebfb3a900856bb7","name":"川中順子","registered_at":"2026-06-20T05:21:01Z","symbol":"NIM1524579","token_address":"0x9ec46789ca80e4fd8b03caa8f8c37ca80c7c88cb","type":"artist","uuid":"a0a44004-9948-4c82-ae94-595f4a7fec55"}
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 0xea4c90f222de30a3109cd90b1836198b0b125b06f981a73baebfb3a900856bb7. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a0a44004-9948-4c82-ae94-595f4a7fec55.json and https://artists.proofprofile.net/proofs/artist/a0a44004-9948-4c82-ae94-595f4a7fec55.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T06:31:18Z
  text: {"copyright_id":"0xea4c90f222de30a3109cd90b1836198b0b125b06f981a73baebfb3a900856bb7","name":"川中順子","registered_at":"2026-06-20T05:21:01Z","symbol":"NIM1524579","token_address":"0x9ec46789ca80e4fd8b03caa8f8c37ca80c7c88cb","type":"artist","uuid":"a0a44004-9948-4c82-ae94-595f4a7fec55"}