板垣奏太郎
type: MusicGroup
popularity: 14
followers: 1000
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd0a8f3fad56153360cd6dc7cad42a3a6b15a0ad54cdf81260b101673cbf17433
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953699
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953699
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/74087081-3832-4c6d-bb0c-6bd34de4f0a9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/74087081-3832-4c6d-bb0c-6bd34de4f0a9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/74087081-3832-4c6d-bb0c-6bd34de4f0a9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T22:00:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd0a8f3fad56153360cd6dc7cad42a3a6b15a0ad54cdf81260b101673cbf17433","name":"板垣奏太郎","registered_at":"2026-06-14T16:43:04Z","symbol":"NIM0513785","token_address":"0xd1ac1d338020ea0f51e040ae7fa2654102c6f47e","type":"artist","uuid":"74087081-3832-4c6d-bb0c-6bd34de4f0a9"}
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 0xd0a8f3fad56153360cd6dc7cad42a3a6b15a0ad54cdf81260b101673cbf17433. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/74087081-3832-4c6d-bb0c-6bd34de4f0a9.json and https://artists.proofprofile.net/proofs/artist/74087081-3832-4c6d-bb0c-6bd34de4f0a9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:47:56Z
  text: {"copyright_id":"0xd0a8f3fad56153360cd6dc7cad42a3a6b15a0ad54cdf81260b101673cbf17433","name":"板垣奏太郎","registered_at":"2026-06-14T16:43:04Z","symbol":"NIM0513785","token_address":"0xd1ac1d338020ea0f51e040ae7fa2654102c6f47e","type":"artist","uuid":"74087081-3832-4c6d-bb0c-6bd34de4f0a9"}
album: 夢現乱舞抄
  type: MusicAlbum
  date published: 2016-09-28