LEEVELLES
type: MusicGroup
genre: anime
popularity: 21
followers: 1373
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa0f609e357e3616cff5043290ea41c1b296d55c46f36b5805e5f840b420e1b13
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a1a409b8-233b-4e2b-b970-5952a6ad55f5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a1a409b8-233b-4e2b-b970-5952a6ad55f5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a1a409b8-233b-4e2b-b970-5952a6ad55f5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
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 0xa0f609e357e3616cff5043290ea41c1b296d55c46f36b5805e5f840b420e1b13. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a1a409b8-233b-4e2b-b970-5952a6ad55f5.json and https://artists.proofprofile.net/proofs/artist/a1a409b8-233b-4e2b-b970-5952a6ad55f5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
album: Oriens
  type: MusicAlbum
  date published: 2019-10-20
album: SEASON
  type: MusicAlbum
  date published: 2021-08-25
album: COLORS
  type: MusicAlbum
  date published: 2022-10-12
album: ユレユレル
  type: MusicAlbum
  date published: 2022-12-28
album: Step&Step!
  type: MusicAlbum
  date published: 2023-03-29
album: ヨルヲカケル
  type: MusicAlbum
  date published: 2023-08-30
album: 地獄の沙汰も愛次第
  type: MusicAlbum
  date published: 2023-10-17
  track: 地獄の沙汰も愛次第
    type: MusicRecording
    duration: PT3M7S
    duration ms: 187000
    explicit: false
    by artist: LEEVELLES
    in album: 地獄の沙汰も愛次第
      type: MusicAlbum
      date published: 2023-10-17
    genre: anime
    isrc code: JPPO02303081
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-12T21:36:51+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb3b20b968587700feb1f00203cc7b1741b05a22a53edaffdd11e9a6b525fde3e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957759
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957759
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO02303081
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T21:46:51Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b20b968587700feb1f00203cc7b1741b05a22a53edaffdd11e9a6b525fde3e. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/JPPO02303081.
      date published: 2026-07-12T21:46:51Z
    audio: 地獄の沙汰も愛次第
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 147.915
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.431
      additional property: Energy
        type: PropertyValue
        value: 0.846
      additional property: Speechiness
        type: PropertyValue
        value: 0.058
      additional property: Acousticness
        type: PropertyValue
        value: 0.002
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.111
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.644
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.259
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: 明日は明日の風が吹く
  type: MusicAlbum
  date published: 2024-01-09
album: Walk
  type: MusicAlbum
  date published: 2024-06-04
album: 花占い
  type: MusicAlbum
  date published: 2024-08-21
album: 幸福のすゝめ
  type: MusicAlbum
  date published: 2024-10-03
album: Brand New Day
  type: MusicAlbum
  date published: 2025-04-04