花奏かのん
type: MusicGroup
popularity: 9
followers: 1297
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd2548be5ce5521e2779201ab6eb7728fa0b739f9d798d7d4cf57905abeca462e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954618
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954618
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c88ad3e9-863c-42f5-a7d3-e5438317b3ff.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c88ad3e9-863c-42f5-a7d3-e5438317b3ff.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c88ad3e9-863c-42f5-a7d3-e5438317b3ff
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T23:05:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd2548be5ce5521e2779201ab6eb7728fa0b739f9d798d7d4cf57905abeca462e","name":"花奏かのん","registered_at":"2026-06-20T22:19:05Z","symbol":"NIM1728270","token_address":"0x6b02db319993cc28cc8013d91bf55e84f28bcf20","type":"artist","uuid":"c88ad3e9-863c-42f5-a7d3-e5438317b3ff"}
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 0xd2548be5ce5521e2779201ab6eb7728fa0b739f9d798d7d4cf57905abeca462e. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c88ad3e9-863c-42f5-a7d3-e5438317b3ff.json and https://artists.proofprofile.net/proofs/artist/c88ad3e9-863c-42f5-a7d3-e5438317b3ff.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:05:13Z
  text: {"copyright_id":"0xd2548be5ce5521e2779201ab6eb7728fa0b739f9d798d7d4cf57905abeca462e","name":"花奏かのん","registered_at":"2026-06-20T22:19:05Z","symbol":"NIM1728270","token_address":"0x6b02db319993cc28cc8013d91bf55e84f28bcf20","type":"artist","uuid":"c88ad3e9-863c-42f5-a7d3-e5438317b3ff"}
album: ラストダンスは求めないで
  type: MusicAlbum
  date published: 2020-06-28
album: LowMidNight
  type: MusicAlbum
  date published: 2021-12-05
album: deep
  type: MusicAlbum
  date published: 2023-09-30