Kumuki
type: MusicGroup
genre: vocaloid
popularity: 2
followers: 179
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc2f1fa772d13914f4272bfee59f025bde38ae4f36ec6e6f3c75f99edf7d4b56a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a3a9e345-950c-47b6-a6d0-86f51013ff54.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a3a9e345-950c-47b6-a6d0-86f51013ff54.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a3a9e345-950c-47b6-a6d0-86f51013ff54
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2f1fa772d13914f4272bfee59f025bde38ae4f36ec6e6f3c75f99edf7d4b56a. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a3a9e345-950c-47b6-a6d0-86f51013ff54.json and https://artists.proofprofile.net/proofs/artist/a3a9e345-950c-47b6-a6d0-86f51013ff54.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
album: Reply to 最後の灯火
  type: MusicAlbum
  date published: 2021-01-27
album: To the World Without You
  type: MusicAlbum
  date published: 2021-02-06
album: 時間あるだと思った
  type: MusicAlbum
  date published: 2021-04-11
album: Unsuccessful Experiment
  type: MusicAlbum
  date published: 2021-04-11
album: アカリのダンス
  type: MusicAlbum
  date published: 2021-04-11
album: 二十歳の秋
  type: MusicAlbum
  date published: 2021-04-11
album: Akari
  type: MusicAlbum
  date published: 2021-04-11
album: 心の火傷
  type: MusicAlbum
  date published: 2021-04-21
album: Social Disorder
  type: MusicAlbum
  date published: 2021-05-05
album: Dream
  type: MusicAlbum
  date published: 2022-01-08
album: Подивися
  type: MusicAlbum
  date published: 2022-09-09
album: Upside Down
  type: MusicAlbum
  date published: 2022-10-26
album: I'm tired, I wanna sleep and hug
  type: MusicAlbum
  date published: 2023-01-04
album: Lost moments
  type: MusicAlbum
  date published: 2023-02-05
album: emotions
  type: MusicAlbum
  date published: 2023-07-08
album: Farewell, my sweetheart
  type: MusicAlbum
  date published: 2023-07-25
album: Leaves never meet the bloom
  type: MusicAlbum
  date published: 2023-09-18
album: When flowers bloom
  type: MusicAlbum
  date published: 2023-09-19
album: Worst nightmare
  type: MusicAlbum
  date published: 2023-10-11
album: Apple Garden snippet
  type: MusicAlbum
  date published: 2023-10-13
album: Your Life Is Simulation
  type: MusicAlbum
  date published: 2023-10-24