Erik Lenfair
type: MusicGroup
popularity: 14
followers: 435
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1b79b0b21a3a7a1b3ce50344ec3ae850c1ae368e5223a665414732cf49569e7e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953746
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953746
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a497e002-46f4-4ac5-8948-e160b253950b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a497e002-46f4-4ac5-8948-e160b253950b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a497e002-46f4-4ac5-8948-e160b253950b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T05:25:34Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1b79b0b21a3a7a1b3ce50344ec3ae850c1ae368e5223a665414732cf49569e7e","name":"Erik Lenfair","registered_at":"2026-06-14T21:46:22Z","symbol":"NIM0586072","token_address":"0x373f7783af42cca780c29d586269453694438bb9","type":"artist","uuid":"a497e002-46f4-4ac5-8948-e160b253950b"}
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 0x1b79b0b21a3a7a1b3ce50344ec3ae850c1ae368e5223a665414732cf49569e7e. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a497e002-46f4-4ac5-8948-e160b253950b.json and https://artists.proofprofile.net/proofs/artist/a497e002-46f4-4ac5-8948-e160b253950b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T11:57:35Z
  text: {"copyright_id":"0x1b79b0b21a3a7a1b3ce50344ec3ae850c1ae368e5223a665414732cf49569e7e","name":"Erik Lenfair","registered_at":"2026-06-14T21:46:22Z","symbol":"NIM0586072","token_address":"0x373f7783af42cca780c29d586269453694438bb9","type":"artist","uuid":"a497e002-46f4-4ac5-8948-e160b253950b"}
album: Hipster & Cruel
  type: MusicAlbum
  date published: 2018-05-20
album: Hipster & Cruel
  type: MusicAlbum
  date published: 2018-05-20
album: A Hot Night in the Bar
  type: MusicAlbum
  date published: 2019-01-06
album: Closer
  type: MusicAlbum
  date published: 2019-06-12
album: Closer
  type: MusicAlbum
  date published: 2019-06-12
album: American Pie
  type: MusicAlbum
  date published: 2023-01-27
album: All Night Long
  type: MusicAlbum
  date published: 2023-03-03
album: Candyshop
  type: MusicAlbum
  date published: 2024-02-21
  track: Candyshop
    type: MusicRecording
    duration: PT2M26S
    duration ms: 146883
    explicit: true
    by artist: Erik Lenfair
    in album: Candyshop
      type: MusicAlbum
      date published: 2024-02-21
    isrc code: QZFZ42441723
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T09:18:23+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8b8ee89831787952ac8c0ca1a081c3152f8e3e38b975fdf5e89f973a5e19ab1e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958276
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958276
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ42441723
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T10:20:17Z
    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 0x8b8ee89831787952ac8c0ca1a081c3152f8e3e38b975fdf5e89f973a5e19ab1e. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZFZ42441723.
      date published: 2026-07-16T10:20:17Z
    audio: Candyshop
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 81.562
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.703
      additional property: Energy
        type: PropertyValue
        value: 0.481
      additional property: Speechiness
        type: PropertyValue
        value: 0.036
      additional property: Acousticness
        type: PropertyValue
        value: 0.705
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.103
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.691
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.488
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Pillow Prince
  type: MusicAlbum
  date published: 2024-06-19