Kei2 Lee
type: MusicGroup
popularity: 13
followers: 100
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x4607f8aa08b775fc3b5780058a1dc3bd352b0560a38a69747f733f4dd591b129
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953630
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953630
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/30cb1529-dfde-474a-b8b9-5d4c12aaf620.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/30cb1529-dfde-474a-b8b9-5d4c12aaf620.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/30cb1529-dfde-474a-b8b9-5d4c12aaf620
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T12:06:27Z
additional property: OTSCanonicalRecord
  type: PropertyValue
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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 0x4607f8aa08b775fc3b5780058a1dc3bd352b0560a38a69747f733f4dd591b129. Chain 2 (Bitcoin): anchored in block 953630 (2026-06-14T12:06:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/30cb1529-dfde-474a-b8b9-5d4c12aaf620.json and https://artists.proofprofile.net/proofs/artist/30cb1529-dfde-474a-b8b9-5d4c12aaf620.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T12:06:27Z
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album: Piano Collections I
  type: MusicAlbum
  date published: 2021-12-13
album: Piano Collections II
  type: MusicAlbum
  date published: 2021-12-20
album: Piano Collections III
  type: MusicAlbum
  date published: 2021-12-27
album: Piano Collections IV
  type: MusicAlbum
  date published: 2022-01-03
album: Piano Collections V
  type: MusicAlbum
  date published: 2022-01-10
album: Piano Collections VI
  type: MusicAlbum
  date published: 2022-01-17
album: Piano Collections VII
  type: MusicAlbum
  date published: 2022-01-24
album: Piano Collections VIII
  type: MusicAlbum
  date published: 2022-01-31
album: Piano Collections IX
  type: MusicAlbum
  date published: 2022-02-07
album: Piano Collections X
  type: MusicAlbum
  date published: 2022-02-14
album: I Really Want to Stay at Your House
  type: MusicAlbum
  date published: 2022-10-04
album: KICK BACK
  type: MusicAlbum
  date published: 2022-11-17
album: Shukufuku The Blessing (Mobile Suit Gundam the Witch from Mercury Lofi)
  type: MusicAlbum
  date published: 2022-12-23
album: In Another Life (Everything Everywhere All at Once Lofi)
  type: MusicAlbum
  date published: 2023-03-08
album: Star Rail (Honkai: Star Rail Lofi)
  type: MusicAlbum
  date published: 2023-08-28
  track: Star Rail - Honkai: Star Rail Lofi
    type: MusicRecording
    duration: PT1M16S
    duration ms: 76000
    explicit: false
    by artist: Kei2 Lee
    in album: Star Rail (Honkai: Star Rail Lofi)
      type: MusicAlbum
      date published: 2023-08-28
    isrc code: QZTAT2386887
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
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      type: PropertyValue
      value: 2026-07-04T06:07:38+00:00
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      type: PropertyValue
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    additional property: OTSBitcoinBlock
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956639
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAT2386887
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T11:19:20Z
    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 0xea2e38248015ef63ea7689d1ddf311be96ffd16a8c97c80624d0d0d2aa63b7da. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZTAT2386887.
      date published: 2026-07-04T11:19:20Z
    audio: Star Rail - Honkai: Star Rail Lofi
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 119.972
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.546
      additional property: Energy
        type: PropertyValue
        value: 0.268
      additional property: Speechiness
        type: PropertyValue
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      additional property: Acousticness
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      additional property: Instrumentalness
        type: PropertyValue
        value: 0.629
      additional property: Liveness
        type: PropertyValue
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      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.05
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.885
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Itterasshai See You Later (Attack on Titan Lofi)
  type: MusicAlbum
  date published: 2023-11-13
album: Yuusha The Brave (Frieren: Beyond Journey's End Lofi)
  type: MusicAlbum
  date published: 2023-12-14
album: LEveL (Solo Leveling Lofi)
  type: MusicAlbum
  date published: 2024-03-02
track: Brand New Days

Brand New Days
type: MusicRecording
duration: PT1M54S
duration ms: 114703
explicit: false
by artist: Merkeyz
by artist: Kei2 Lee
in album: Persona 3 Lofi & Chill
  type: MusicAlbum
  date published: 2024-03-02
genre: lo-fi
isrc code: GX8KD2452465
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T15:01:47+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8KD2452465
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 953520
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-06-13T13:32:09+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x415a4b3d2bf3ab100e7105b783bd146f43b065ad0417fc48b3def96549ab0923. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GX8KD2452465.
  date published: 2026-06-13T15:41:10Z
audio: Brand New Days
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.222
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.538
  additional property: Energy
    type: PropertyValue
    value: 0.327
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
    value: 0.926
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.836
  additional property: Liveness
    type: PropertyValue
    value: 0.118
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.15
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.348
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major