butasaku
type: MusicGroup
genre: japanese indie
popularity: 4
followers: 1353
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1eadfb01006632d928bdf71640baab5266b8c2cd1d3eee6b9f8172d564fdccd8
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/d94e17e9-da86-4d2f-9d5e-a40cc382c966.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d94e17e9-da86-4d2f-9d5e-a40cc382c966.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d94e17e9-da86-4d2f-9d5e-a40cc382c966
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T04:51:12Z
additional property: OTSCanonicalRecord
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 0x1eadfb01006632d928bdf71640baab5266b8c2cd1d3eee6b9f8172d564fdccd8. 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/d94e17e9-da86-4d2f-9d5e-a40cc382c966.json and https://artists.proofprofile.net/proofs/artist/d94e17e9-da86-4d2f-9d5e-a40cc382c966.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T04:51:12Z
album: picture (feat. butaji & 荒井優作)
  type: MusicAlbum
  date published: 2021-07-14
album: picture (feat. butaji & Yusaku Arai)
  type: MusicAlbum
  date published: 2021-07-14
album: the city
  type: MusicAlbum
  date published: 2021-09-08
album: the city
  type: MusicAlbum
  date published: 2021-09-08
album: in my brain (feat. butaji & 荒井優作)
  type: MusicAlbum
  date published: 2021-12-22
album: in my brain (feat. butaji & Yusaku Arai)
  type: MusicAlbum
  date published: 2021-12-22
album: atatakai (feat. butaji & 荒井優作)
  type: MusicAlbum
  date published: 2022-02-16
album: atatakai (feat. butaji & Yusaku Arai)
  type: MusicAlbum
  date published: 2022-02-16
album: forms
  type: MusicAlbum
  date published: 2022-03-16
album: forms
  type: MusicAlbum
  date published: 2022-03-16
album: silver lining (feat. butaji, Yusaku Arai & tofubeats) [tofubeats Remix]
  type: MusicAlbum
  date published: 2022-12-23
album: silver lining (feat. butaji, 荒井優作 & tofubeats) [tofubeats Remix]
  type: MusicAlbum
  date published: 2022-12-23
album: stay here
  type: MusicAlbum
  date published: 2024-07-24
album: stay here
  type: MusicAlbum
  date published: 2024-07-24