早稲田大学グリー・クラブ
type: MusicGroup
genre: kayokyoku
popularity: 11
followers: 226
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x46ec4c122181cd925d0afe9baf9022031c35028fcb42eb4442995352d89f418b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953704
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953704
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7a0289fd-b854-4a4d-871b-5ef748c9b468.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7a0289fd-b854-4a4d-871b-5ef748c9b468.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7a0289fd-b854-4a4d-871b-5ef748c9b468
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T22:58:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x46ec4c122181cd925d0afe9baf9022031c35028fcb42eb4442995352d89f418b","name":"早稲田大学グリー・クラブ","registered_at":"2026-06-14T17:18:03Z","symbol":"NIM0522124","token_address":"0x7ee284cae47021d22a441ad731025a5cc3523eeb","type":"artist","uuid":"7a0289fd-b854-4a4d-871b-5ef748c9b468"}
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 0x46ec4c122181cd925d0afe9baf9022031c35028fcb42eb4442995352d89f418b. Chain 2 (Bitcoin): anchored in block 953704 (2026-06-14T22:58:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7a0289fd-b854-4a4d-871b-5ef748c9b468.json and https://artists.proofprofile.net/proofs/artist/7a0289fd-b854-4a4d-871b-5ef748c9b468.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T22:58:38Z
  text: {"copyright_id":"0x46ec4c122181cd925d0afe9baf9022031c35028fcb42eb4442995352d89f418b","name":"早稲田大学グリー・クラブ","registered_at":"2026-06-14T17:18:03Z","symbol":"NIM0522124","token_address":"0x7ee284cae47021d22a441ad731025a5cc3523eeb","type":"artist","uuid":"7a0289fd-b854-4a4d-871b-5ef748c9b468"}