Keiju(JP)
type: MusicGroup
genre: j-dance
genre: lo-fi house
popularity: 2
followers: 198
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4c4f3d28e64f60196c01f0a1f82f4d66adf22da9108f5cfcfa0bc5793ac77afb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954025
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954025
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3787f6f5-7274-4ecd-aaaf-49127c1e5f40.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3787f6f5-7274-4ecd-aaaf-49127c1e5f40.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3787f6f5-7274-4ecd-aaaf-49127c1e5f40
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T00:32:47Z
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 0x4c4f3d28e64f60196c01f0a1f82f4d66adf22da9108f5cfcfa0bc5793ac77afb. Chain 2 (Bitcoin): anchored in block 954027 (2026-06-17T00:55:08Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3787f6f5-7274-4ecd-aaaf-49127c1e5f40.json and https://artists.proofprofile.net/proofs/artist/3787f6f5-7274-4ecd-aaaf-49127c1e5f40.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T00:55:08Z
album: Only U Know
  type: MusicAlbum
  date published: 2020-05-06
album: Only U Know
  type: MusicAlbum
  date published: 2020-05-06
album: Monaco Grand Prix
  type: MusicAlbum
  date published: 2021-07-02
album: Sunraker
  type: MusicAlbum
  date published: 2021-12-14
album: Sunraker
  type: MusicAlbum
  date published: 2021-12-14
album: Mind Ocean
  type: MusicAlbum
  date published: 2024-07-18