現役JK
type: MusicGroup
genre: japanese indie
popularity: 3
followers: 96
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd910c4ccbd33d0fcc656e1edfbfccdc19394e999d61a6714a4b832162c890ced
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/67330dc6-9a55-4589-883d-e81e131de33d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/67330dc6-9a55-4589-883d-e81e131de33d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/67330dc6-9a55-4589-883d-e81e131de33d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd910c4ccbd33d0fcc656e1edfbfccdc19394e999d61a6714a4b832162c890ced","name":"現役JK","registered_at":"2026-06-17T01:38:16Z","symbol":"NIM1240513","token_address":"0x385b841f478ac98183e8cfa7cd60dc0aff75d9c4","type":"artist","uuid":"67330dc6-9a55-4589-883d-e81e131de33d"}
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 0xd910c4ccbd33d0fcc656e1edfbfccdc19394e999d61a6714a4b832162c890ced. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/67330dc6-9a55-4589-883d-e81e131de33d.json and https://artists.proofprofile.net/proofs/artist/67330dc6-9a55-4589-883d-e81e131de33d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xd910c4ccbd33d0fcc656e1edfbfccdc19394e999d61a6714a4b832162c890ced","name":"現役JK","registered_at":"2026-06-17T01:38:16Z","symbol":"NIM1240513","token_address":"0x385b841f478ac98183e8cfa7cd60dc0aff75d9c4","type":"artist","uuid":"67330dc6-9a55-4589-883d-e81e131de33d"}
album: I Never Know
  type: MusicAlbum
  date published: 2024-06-18