フユフユウ
type: MusicGroup
genre: shoegaze
popularity: 2
followers: 598
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3d16c18f4e0967b7259ea6136d0808adc8a79255a524adf19cecb1fd2aa93d29
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953997
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953997
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2f752557-fa54-4dea-9b53-f962e510ea55.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2f752557-fa54-4dea-9b53-f962e510ea55.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2f752557-fa54-4dea-9b53-f962e510ea55
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:07:57Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3d16c18f4e0967b7259ea6136d0808adc8a79255a524adf19cecb1fd2aa93d29","name":"フユフユウ","registered_at":"2026-06-16T06:05:05Z","symbol":"NIM0960572","token_address":"0xfbff5c09e46996748d7765c98814f52e604edba9","type":"artist","uuid":"2f752557-fa54-4dea-9b53-f962e510ea55"}
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 0x3d16c18f4e0967b7259ea6136d0808adc8a79255a524adf19cecb1fd2aa93d29. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2f752557-fa54-4dea-9b53-f962e510ea55.json and https://artists.proofprofile.net/proofs/artist/2f752557-fa54-4dea-9b53-f962e510ea55.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:46:20Z
  text: {"copyright_id":"0x3d16c18f4e0967b7259ea6136d0808adc8a79255a524adf19cecb1fd2aa93d29","name":"フユフユウ","registered_at":"2026-06-16T06:05:05Z","symbol":"NIM0960572","token_address":"0xfbff5c09e46996748d7765c98814f52e604edba9","type":"artist","uuid":"2f752557-fa54-4dea-9b53-f962e510ea55"}
album: 海底のポップアート
  type: MusicAlbum
  date published: 2021-10-06
album: 物見遊山
  type: MusicAlbum
  date published: 2023-02-04