水島 裕
type: MusicGroup
genre: anime
popularity: 2
followers: 21
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1ff09fb2a8cf4824e97cdcba48d123a5159c05b57e8b0e4f2299fbd7b08fec21
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954174
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954174
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7f4b7d7a-b166-476c-8ee4-5e6b735afc57.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7f4b7d7a-b166-476c-8ee4-5e6b735afc57.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7f4b7d7a-b166-476c-8ee4-5e6b735afc57
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-18T03:01:36Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1ff09fb2a8cf4824e97cdcba48d123a5159c05b57e8b0e4f2299fbd7b08fec21","name":"水島 裕","registered_at":"2026-06-17T09:52:15Z","symbol":"NIM1358337","token_address":"0xbebcdf8533dd29a8c2b1dbffe478aefda994996f","type":"artist","uuid":"7f4b7d7a-b166-476c-8ee4-5e6b735afc57"}
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 0x1ff09fb2a8cf4824e97cdcba48d123a5159c05b57e8b0e4f2299fbd7b08fec21. Chain 2 (Bitcoin): anchored in block 954174 (2026-06-18T03:01:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7f4b7d7a-b166-476c-8ee4-5e6b735afc57.json and https://artists.proofprofile.net/proofs/artist/7f4b7d7a-b166-476c-8ee4-5e6b735afc57.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-18T03:01:36Z
  text: {"copyright_id":"0x1ff09fb2a8cf4824e97cdcba48d123a5159c05b57e8b0e4f2299fbd7b08fec21","name":"水島 裕","registered_at":"2026-06-17T09:52:15Z","symbol":"NIM1358337","token_address":"0xbebcdf8533dd29a8c2b1dbffe478aefda994996f","type":"artist","uuid":"7f4b7d7a-b166-476c-8ee4-5e6b735afc57"}