MARU
type: MusicGroup
genre: j-rap
popularity: 5
followers: 133
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x835cabcf56e810dcc661429f985b460b798de8f0d96eac97ddcd2e9f8039d88a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954689
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954689
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e38605a1-07b7-4775-a016-2bd7b96e9af7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e38605a1-07b7-4775-a016-2bd7b96e9af7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e38605a1-07b7-4775-a016-2bd7b96e9af7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T10:35:31Z
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 0x835cabcf56e810dcc661429f985b460b798de8f0d96eac97ddcd2e9f8039d88a. Chain 2 (Bitcoin): anchored in block 954689 (2026-06-21T10:35:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e38605a1-07b7-4775-a016-2bd7b96e9af7.json and https://artists.proofprofile.net/proofs/artist/e38605a1-07b7-4775-a016-2bd7b96e9af7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T10:35:31Z
album: ガリガリ (feat. GOLDEN ZEEZY & KVGGLV)
  type: MusicAlbum
  date published: 2023-01-26
album: GARIGARI (feat. GOLDEN ZEEZY & KVGGLV)
  type: MusicAlbum
  date published: 2023-01-26
album: PEGOPA (feat. Set The Tone.)
  type: MusicAlbum
  date published: 2023-06-18
album: ペゴパ (feat. Set The Tone.)
  type: MusicAlbum
  date published: 2023-06-18
album: dash
  type: MusicAlbum
  date published: 2023-10-14
  track: dash
    type: MusicRecording
    duration: PT2M6S
    duration ms: 126857
    explicit: false
    by artist: MARU
    in album: dash
      type: MusicAlbum
      date published: 2023-10-14
    genre: j-rap
    isrc code: TCJPX2364439
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T07:10:03+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x777cb0eae5eb7dd4a8aae2a58a41d3bb8c45f6610ec1229cf8ae3012ac779334
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958383
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958383
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPX2364439
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T08:20:01Z
    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 0x777cb0eae5eb7dd4a8aae2a58a41d3bb8c45f6610ec1229cf8ae3012ac779334. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/TCJPX2364439.
      date published: 2026-07-17T08:20:01Z
    audio: dash
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 140.088
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.842
      additional property: Energy
        type: PropertyValue
        value: 0.521
      additional property: Speechiness
        type: PropertyValue
        value: 0.2
      additional property: Acousticness
        type: PropertyValue
        value: 0.1
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.105
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.375
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.105
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: dash
  type: MusicAlbum
  date published: 2023-10-14
album: Cadillac (feat. L.I.P)
  type: MusicAlbum
  date published: 2024-11-16
album: Cadillac (feat. L.I.P)
  type: MusicAlbum
  date published: 2024-11-16
album: BISHO BISHO
  type: MusicAlbum
  date published: 2025-05-02
album: BISHO BISHO
  type: MusicAlbum
  date published: 2025-05-02
album: THE "FUN" 2
  type: MusicAlbum
  date published: 2025-07-19
album: THE "FUN" 2
  type: MusicAlbum
  date published: 2025-07-19