kurochuu.
type: MusicGroup
genre: lo-fi
popularity: 40
followers: 22801
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39ff105d842d8b42352697e9331047450129662351fc36c05c5ae7e7dbfc6be. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/350c26e6-3895-494b-b807-129c0b4ed428.json and https://artists.proofprofile.net/proofs/artist/350c26e6-3895-494b-b807-129c0b4ed428.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
album: shock but it's lofi (attack on titan)
  type: MusicAlbum
  date published: 2021-01-22
album: red swan but it's lofi (attack on titan)
  type: MusicAlbum
  date published: 2021-01-22
album: my war but it's lofi (attack on titan)
  type: MusicAlbum
  date published: 2021-01-22
album: youseebiggirl but it's lofi (attack on titan)
  type: MusicAlbum
  date published: 2021-01-22
album: identity but it's lofi (the promised neverland)
  type: MusicAlbum
  date published: 2021-02-12
album: call your name but it's lofi (attack on titan)
  type: MusicAlbum
  date published: 2021-02-19
album: vivid vice but it's lofi (jujutsu kaisen)
  type: MusicAlbum
  date published: 2021-03-07
album: homura but it's lofi (demon slayer)
  type: MusicAlbum
  date published: 2021-03-28
album: name of love but it's lofi (attack on titan)
  type: MusicAlbum
  date published: 2021-05-02
album: blue bird but it's lofi (naruto shippuden)
  type: MusicAlbum
  date published: 2021-05-18
album: cry baby but it's lofi (tokyo revengers)
  type: MusicAlbum
  date published: 2021-06-09
album: spark again but it's lofi (fire force)
  type: MusicAlbum
  date published: 2021-06-30
album: we are but it's lofi (one piece)
  type: MusicAlbum
  date published: 2021-08-07
album: tokyo wonder but it's lofi (tokyo revengers)
  type: MusicAlbum
  date published: 2021-09-05
album: nezuko's theme but it's lofi (demon slayer)
  type: MusicAlbum
  date published: 2021-10-13
album: heroes but it's lofi (my hero academia)
  type: MusicAlbum
  date published: 2021-11-05
album: sadness and sorrow but it's lofi (naruto)
  type: MusicAlbum
  date published: 2021-11-12
album: crossing field but it's lofi (sword art online)
  type: MusicAlbum
  date published: 2021-12-10
album: akuma no ko but it's lofi (attack on titan)
  type: MusicAlbum
  date published: 2022-02-07
album: one summer's day but it's lofi (spirited away)
  type: MusicAlbum
  date published: 2022-08-20
album: orange but it's lofi (your lie in april)
  type: MusicAlbum
  date published: 2023-04-21
album: kizuna no kiseki but it's lofi (demon slayer)
  type: MusicAlbum
  date published: 2023-05-26
album: bling bang bang born but it's lofi (mashle)
  type: MusicAlbum
  date published: 2024-03-13
album: mugen but it's lofi (demon slayer)
  type: MusicAlbum
  date published: 2024-07-05
album: run sakamoto run but it's lofi (sakamoto days)
  type: MusicAlbum
  date published: 2025-02-26
album: reawaker but it's lofi (solo leveling)
  type: MusicAlbum
  date published: 2025-04-27
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    type: MusicRecording
    duration: PT1M45S
    duration ms: 105317
    explicit: false
    by artist: kurochuu.
    in album: reawaker but it's lofi (solo leveling)
      type: MusicAlbum
      date published: 2025-04-27
    genre: lo-fi
    isrc code: QZMEQ2597013
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
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    additional property: OTSTimestamp
      type: PropertyValue
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    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 0x29731832d9bded2522c63f5e482221950119cb2bc85cc2b4a7841667312b1b35. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZMEQ2597013.
      date published: 2026-07-17T09:14:21Z
    audio: reawaker but it's lofi (solo leveling)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 117.973
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.811
      additional property: Energy
        type: PropertyValue
        value: 0.314
      additional property: Speechiness
        type: PropertyValue
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      additional property: Acousticness
        type: PropertyValue
        value: 0.765
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.908
      additional property: Liveness
        type: PropertyValue
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      additional property: Valence (Positivity)
        type: PropertyValue
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        type: PropertyValue
        value: F#
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album: veil but it's lofi (fire force)
album: ao no sumika but it's lofi (jujutsu kaisen)
album: otonoke but it's lofi (dan da dan)

veil but it's lofi (fire force)
type: MusicAlbum
date published: 2025-06-06

ao no sumika but it's lofi (jujutsu kaisen)
type: MusicAlbum
date published: 2025-06-20

otonoke but it's lofi (dan da dan)
type: MusicAlbum
date published: 2025-07-11
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  in album: otonoke but it's lofi (dan da dan)
    type: MusicAlbum
    date published: 2025-07-11
  genre: lo-fi
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    type: PropertyValue
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSBitcoinBlock
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    value: 956545
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956545
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTBB2571941
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T19:59:51Z
  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 0x1924d752b0c891cfc078dd15d242e2723141f5eeb36b2a082346d25f12b039f4. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZTBB2571941.
    date published: 2026-07-03T19:59:51Z
  audio: otonoke but it's lofi (dan da dan)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 138.022
    additional property: Musical Key
      type: PropertyValue
      value: 8
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.647
    additional property: Energy
      type: PropertyValue
      value: 0.341
    additional property: Speechiness
      type: PropertyValue
      value: 0.037
    additional property: Acousticness
      type: PropertyValue
      value: 0.658
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.916
    additional property: Liveness
      type: PropertyValue
      value: 0.162
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.574
    additional property: Loudness (dB)
      type: PropertyValue
      value: -15.619
    additional property: Key Name
      type: PropertyValue
      value: Ab
    additional property: Mode Name
      type: PropertyValue
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