Left Eye
type: MusicGroup
genre: bounce
genre: hard house
popularity: 6
followers: 422
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x39fe2dce27148c6041f36089fcef1b9458e40515ac87efd40dcf32c9595c4a3c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954705
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/efa06159-a0f6-4776-b066-f01ae2230dc9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/efa06159-a0f6-4776-b066-f01ae2230dc9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/efa06159-a0f6-4776-b066-f01ae2230dc9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x39fe2dce27148c6041f36089fcef1b9458e40515ac87efd40dcf32c9595c4a3c","name":"Left Eye","registered_at":"2026-06-21T12:29:59Z","symbol":"NIM1924661","token_address":"0x188692f644a63e8d4912627b3bc362397e319ff8","type":"artist","uuid":"efa06159-a0f6-4776-b066-f01ae2230dc9"}
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 0x39fe2dce27148c6041f36089fcef1b9458e40515ac87efd40dcf32c9595c4a3c. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/efa06159-a0f6-4776-b066-f01ae2230dc9.json and https://artists.proofprofile.net/proofs/artist/efa06159-a0f6-4776-b066-f01ae2230dc9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
  text: {"copyright_id":"0x39fe2dce27148c6041f36089fcef1b9458e40515ac87efd40dcf32c9595c4a3c","name":"Left Eye","registered_at":"2026-06-21T12:29:59Z","symbol":"NIM1924661","token_address":"0x188692f644a63e8d4912627b3bc362397e319ff8","type":"artist","uuid":"efa06159-a0f6-4776-b066-f01ae2230dc9"}
album: Gravity
  type: MusicAlbum
  date published: 2015-06-16
track: Not Tonight - Remix
  type: MusicRecording
  duration: PT4M12S
  duration ms: 252520
  explicit: false
  by artist: Lil' Kim
  by artist: Angie Martinez
  by artist: Da Brat
  by artist: Left Eye
  by artist: Missy Elliott
  in album: Party Time
    type: MusicAlbum
    date published: 2018-01-16
  genre: hip-hop
  genre: rap
  genre: dance-pop
  genre: pop-rap
  genre: r-b
  genre: urban-contemporary
  genre: southern-hip-hop
  genre: trap-queen
  genre: hip-pop
  genre: east-coast-hip-hop
  isrc code: USAT29801132
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-04T07:35:33+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x002b257f81e54fba6463c33ec76d4ea2481f59323551caa89ad2507d4c68fed7
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956304
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAT29801132
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  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 0x002b257f81e54fba6463c33ec76d4ea2481f59323551caa89ad2507d4c68fed7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USAT29801132.
    date published: 2026-07-02T03:55:08Z
  audio: Not Tonight - Remix
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 117.612
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.854
    additional property: Energy
      type: PropertyValue
      value: 0.602
    additional property: Speechiness
      type: PropertyValue
      value: 0.32
    additional property: Acousticness
      type: PropertyValue
      value: 0.069
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.292
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.592
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.996
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: U Know What's Up

U Know What's Up
type: MusicRecording
duration: PT3M48S
duration ms: 228075
explicit: false
by artist: Donell Jones
by artist: Left Eye
in album: My Playlist RnB Old School, Vol. 1
  type: MusicAlbum
  date published: 2001-08-22
popularity: 2
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e077a802bebb395a7f01ee720aeef8debd079ea6e4c260f53783cf7dd5df283. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/FR8GV1715900.
  date published: 2026-07-31T22:27:44Z
audio: U Know What's Up
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 118.018
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.82
  additional property: Energy
    type: PropertyValue
    value: 0.447
  additional property: Speechiness
    type: PropertyValue
    value: 0.075
  additional property: Acousticness
    type: PropertyValue
    value: 0.042
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.382
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.867
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.499
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: FR8GV1715900
additional property: CopyrightID
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: 960473
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T22:27:44+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR8GV1715900
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960473
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960473
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T22:27:44+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 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