LostBoy Kujo
type: MusicGroup
genre: melodic bass
popularity: 15
followers: 325
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf8798bbac169d7c79d09ad152a7da1be08215bf0307bd678d31b956542b90779
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953662
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953662
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/55667e60-5aea-428f-b823-7aafa4832909.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/55667e60-5aea-428f-b823-7aafa4832909.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/55667e60-5aea-428f-b823-7aafa4832909
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T17:28:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf8798bbac169d7c79d09ad152a7da1be08215bf0307bd678d31b956542b90779","name":"LostBoy Kujo","registered_at":"2026-06-14T13:28:51Z","symbol":"NIM0467437","token_address":"0xf1d219a03ee0be2cda3fe891a4ef0bc8def0dc86","type":"artist","uuid":"55667e60-5aea-428f-b823-7aafa4832909"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8798bbac169d7c79d09ad152a7da1be08215bf0307bd678d31b956542b90779. Chain 2 (Bitcoin): anchored in block 953662 (2026-06-14T17:28:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/55667e60-5aea-428f-b823-7aafa4832909.json and https://artists.proofprofile.net/proofs/artist/55667e60-5aea-428f-b823-7aafa4832909.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T17:28:39Z
  text: {"copyright_id":"0xf8798bbac169d7c79d09ad152a7da1be08215bf0307bd678d31b956542b90779","name":"LostBoy Kujo","registered_at":"2026-06-14T13:28:51Z","symbol":"NIM0467437","token_address":"0xf1d219a03ee0be2cda3fe891a4ef0bc8def0dc86","type":"artist","uuid":"55667e60-5aea-428f-b823-7aafa4832909"}
album: Cyberpunk Baby
  type: MusicAlbum
  date published: 2022-07-08
album: Emo Girl
  type: MusicAlbum
  date published: 2022-07-22
album: Take Me Instead
  type: MusicAlbum
  date published: 2022-08-05
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  type: MusicAlbum
  date published: 2022-08-19
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  type: MusicAlbum
  date published: 2022-09-02
album: unimportant!
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  date published: 2022-09-16
album: lon3ly soul
  type: MusicAlbum
  date published: 2022-09-30
album: Cyberluv Nostalgia
  type: MusicAlbum
  date published: 2023-02-10
album: Hate Myself
  type: MusicAlbum
  date published: 2023-04-28
album: Fantasies
  type: MusicAlbum
  date published: 2023-07-21
album: Before I Live
  type: MusicAlbum
  date published: 2023-09-01
album: Dying Star
  type: MusicAlbum
  date published: 2023-12-08
album: Rock Bottom
  type: MusicAlbum
  date published: 2024-03-22
album: Stumble
  type: MusicAlbum
  date published: 2024-08-02
track: You Can, I Can
  type: MusicRecording
  duration: PT3M5S
  duration ms: 185806
  explicit: false
  by artist: Cowboy Club
  by artist: PatFromLastYear
  by artist: LostBoy Kujo
  in album: You Can, I Can
    type: MusicAlbum
    date published: 2023-11-03
  isrc code: QZTB62399156
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-07T15:30:25+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8b0a087d5a0f8614e178c69a87e2f141531f01fa54483e626da396f0e5a1933b
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953515
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/953515
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB62399156
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T12:53:06Z
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b0a087d5a0f8614e178c69a87e2f141531f01fa54483e626da396f0e5a1933b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZTB62399156.
    date published: 2026-06-13T12:53:06Z
  audio: You Can, I Can
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 155.465
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.446
    additional property: Energy
      type: PropertyValue
      value: 0.776
    additional property: Speechiness
      type: PropertyValue
      value: 0.06
    additional property: Acousticness
      type: PropertyValue
      value: 0.017
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.178
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.368
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.874
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major