宮城数江
type: MusicGroup
popularity: 4
followers: 10
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd02af2df60a6a0205bee05bbe772e65bc58c817038b33d4de86fc83bd1aa84d5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954717
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954717
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f49ccce3-8d08-4c0a-a570-4b1cf0acb104.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f49ccce3-8d08-4c0a-a570-4b1cf0acb104.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f49ccce3-8d08-4c0a-a570-4b1cf0acb104
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T15:47:51Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd02af2df60a6a0205bee05bbe772e65bc58c817038b33d4de86fc83bd1aa84d5","name":"宮城数江","registered_at":"2026-06-21T14:22:14Z","symbol":"NIM1945503","token_address":"0xa2a715e7940a329ce86d8c286c853afc1616099f","type":"artist","uuid":"f49ccce3-8d08-4c0a-a570-4b1cf0acb104"}
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 0xd02af2df60a6a0205bee05bbe772e65bc58c817038b33d4de86fc83bd1aa84d5. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f49ccce3-8d08-4c0a-a570-4b1cf0acb104.json and https://artists.proofprofile.net/proofs/artist/f49ccce3-8d08-4c0a-a570-4b1cf0acb104.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T15:47:51Z
  text: {"copyright_id":"0xd02af2df60a6a0205bee05bbe772e65bc58c817038b33d4de86fc83bd1aa84d5","name":"宮城数江","registered_at":"2026-06-21T14:22:14Z","symbol":"NIM1945503","token_address":"0xa2a715e7940a329ce86d8c286c853afc1616099f","type":"artist","uuid":"f49ccce3-8d08-4c0a-a570-4b1cf0acb104"}