Kofee
type: MusicGroup
genre: electropop
popularity: 5
followers: 191
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4c958d6ec0d240b42d56040344951ace92176180a47e27921763a07fa5a70d15
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954603
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954603
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c001e419-37ed-411f-839b-2bee0ddeefb3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c001e419-37ed-411f-839b-2bee0ddeefb3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c001e419-37ed-411f-839b-2bee0ddeefb3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
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 0x4c958d6ec0d240b42d56040344951ace92176180a47e27921763a07fa5a70d15. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c001e419-37ed-411f-839b-2bee0ddeefb3.json and https://artists.proofprofile.net/proofs/artist/c001e419-37ed-411f-839b-2bee0ddeefb3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T21:47:54Z
album: Gunga Ginga
  type: MusicAlbum
  date published: 2020-02-18
album: Home Party
  type: MusicAlbum
  date published: 2020-06-10
album: See It Through
  type: MusicAlbum
  date published: 2020-07-25
album: Sea
  type: MusicAlbum
  date published: 2020-08-15
album: Nothing I Wouldn't Do
  type: MusicAlbum
  date published: 2020-09-06
album: Enemy Contact
  type: MusicAlbum
  date published: 2020-10-02
album: The Big Boss
  type: MusicAlbum
  date published: 2021-12-28
album: Pixel Rain
  type: MusicAlbum
  date published: 2021-12-30
album: I Do
  type: MusicAlbum
  date published: 2022-01-22
album: Light Blue High
  type: MusicAlbum
  date published: 2022-11-21
album: Light Blue High (Johan Plus Kei Remix)
  type: MusicAlbum
  date published: 2022-12-21
album: 限界ハッピー
  type: MusicAlbum
  date published: 2023-03-15
album: Zen
  type: MusicAlbum
  date published: 2023-03-20
album: 限界ハッピー (Remixes)
  type: MusicAlbum
  date published: 2023-04-05
album: Macdonal's French Fries
  type: MusicAlbum
  date published: 2023-04-06
album: Hungry Vibes
  type: MusicAlbum
  date published: 2023-08-02
album: Let's Get Down
  type: MusicAlbum
  date published: 2023-10-30
album: Guitar Player
  type: MusicAlbum
  date published: 2024-02-26
album: Aquaman
  type: MusicAlbum
  date published: 2024-02-28
album: Cute Frog
  type: MusicAlbum
  date published: 2024-03-04
album: Drizzle
  type: MusicAlbum
  date published: 2024-04-12
  track: Drizzle
    type: MusicRecording
    duration: PT2M18S
    duration ms: 138600
    explicit: false
    by artist: Kofee
    in album: Drizzle
      type: MusicAlbum
      date published: 2024-04-12
    genre: electropop
    isrc code: QZMHK2425055
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T15:51:09+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x688786b0f3d6b1e00ac5d3d5f8e01b60fb2892ef0392d8e80fe288e6e1c31489
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959031
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959031
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMHK2425055
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T16:15:11Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x688786b0f3d6b1e00ac5d3d5f8e01b60fb2892ef0392d8e80fe288e6e1c31489. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMHK2425055.
      date published: 2026-07-21T16:15:11Z
    audio: Drizzle
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 75.019
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 1
      additional property: Danceability
        type: PropertyValue
        value: 0.732
      additional property: Energy
        type: PropertyValue
        value: 0.451
      additional property: Speechiness
        type: PropertyValue
        value: 0.067
      additional property: Acousticness
        type: PropertyValue
        value: 0.368
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.835
      additional property: Liveness
        type: PropertyValue
        value: 0.107
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.16
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.105
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Minor