KEIRU
type: MusicGroup
popularity: 4
followers: 95
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x82156ad372555283db356f46b1d20154240e4a78acb151e6b4ceaa1630bf8ef1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8cbee14c-1b5d-43d2-83a8-75918c2aa396.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8cbee14c-1b5d-43d2-83a8-75918c2aa396.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8cbee14c-1b5d-43d2-83a8-75918c2aa396
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
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 0x82156ad372555283db356f46b1d20154240e4a78acb151e6b4ceaa1630bf8ef1. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8cbee14c-1b5d-43d2-83a8-75918c2aa396.json and https://artists.proofprofile.net/proofs/artist/8cbee14c-1b5d-43d2-83a8-75918c2aa396.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
album: ECHO NORTH
  type: MusicAlbum
  track: ECHO NORTH
    type: MusicRecording
    duration: PT2M17S
    duration ms: 137739
    explicit: false
    by artist: KEIRU
    in album: ECHO NORTH
    isrc code: RUAGT2472839
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T23:52:14+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x901e00b5be08e2da59b370248f5832614f09601d97c8a0115f4b8ec5fe98f9d7
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958945
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958945
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RUAGT2472839
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T00:35:28Z
    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 0x901e00b5be08e2da59b370248f5832614f09601d97c8a0115f4b8ec5fe98f9d7. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/RUAGT2472839.
      date published: 2026-07-21T00:35:28Z
    audio: ECHO NORTH
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 114.967
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.576
      additional property: Energy
        type: PropertyValue
        value: 0.821
      additional property: Speechiness
        type: PropertyValue
        value: 0.044
      additional property: Acousticness
        type: PropertyValue
        value: 0.01
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.012
      additional property: Liveness
        type: PropertyValue
        value: 0.111
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.106
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.172
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
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  type: MusicAlbum
  date published: 2023-03-24
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  type: MusicAlbum
  date published: 2023-05-19
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  type: MusicAlbum
  date published: 2023-07-14
album: HORIZON
  type: MusicAlbum
  date published: 2023-07-14
album: ENCANTADORA!
  type: MusicAlbum
  date published: 2023-07-21
album: ENCANTADORA!
  type: MusicAlbum
  date published: 2023-07-21
album: APATHETIC
  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2023-12-01
album: Decide Your Vibe, Vol. 1
  type: MusicAlbum
  date published: 2023-12-08
album: FRESH UK
  type: MusicAlbum
  date published: 2023-12-15
album: LOST SOULS
  type: MusicAlbum
  date published: 2024-03-29
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  type: MusicAlbum
  date published: 2024-08-02
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  type: MusicAlbum
  date published: 2024-10-18
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2025-01-24
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  type: MusicAlbum
  date published: 2025-02-07
album: RAISE
  type: MusicAlbum
  date published: 2025-05-02
album: ECSTATIC
  type: MusicAlbum
  date published: 2025-06-06
album: SOUTHSIDE
  type: MusicAlbum
  date published: 2025-06-20
album: PATHETIC
  type: MusicAlbum
  date published: 2025-08-08