カンパーニュ楓
type: MusicGroup
popularity: 2
followers: 26
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6c7198a2e4bb5156a461a92f9cde1fb76be765cef40903f00ddd6f5653e65fed
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954650
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954650
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/db035bca-5c54-4d77-9532-f9564662c295.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/db035bca-5c54-4d77-9532-f9564662c295.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/db035bca-5c54-4d77-9532-f9564662c295
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T04:51:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6c7198a2e4bb5156a461a92f9cde1fb76be765cef40903f00ddd6f5653e65fed","name":"カンパーニュ楓","registered_at":"2026-06-21T04:30:47Z","symbol":"NIM1820304","token_address":"0x589e3ae0c80d4365c61be71632ea4283776b13f8","type":"artist","uuid":"db035bca-5c54-4d77-9532-f9564662c295"}
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 0x6c7198a2e4bb5156a461a92f9cde1fb76be765cef40903f00ddd6f5653e65fed. Chain 2 (Bitcoin): anchored in block 954650 (2026-06-21T04:51:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/db035bca-5c54-4d77-9532-f9564662c295.json and https://artists.proofprofile.net/proofs/artist/db035bca-5c54-4d77-9532-f9564662c295.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T04:51:12Z
  text: {"copyright_id":"0x6c7198a2e4bb5156a461a92f9cde1fb76be765cef40903f00ddd6f5653e65fed","name":"カンパーニュ楓","registered_at":"2026-06-21T04:30:47Z","symbol":"NIM1820304","token_address":"0x589e3ae0c80d4365c61be71632ea4283776b13f8","type":"artist","uuid":"db035bca-5c54-4d77-9532-f9564662c295"}
album: Promised eternity
  type: MusicAlbum
  date published: 2022-09-28
album: 遅咲き・Chu-Lip
  type: MusicAlbum
  date published: 2022-10-10