Femi Onas
type: MusicGroup
popularity: 5
followers: 606
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2d4e087b766b7f438c46e58a72b8f633b37aad270cc47fbcdb21ef374c356cb7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cfe6012a-89e3-4b90-a724-21cf7ad4ebb8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cfe6012a-89e3-4b90-a724-21cf7ad4ebb8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cfe6012a-89e3-4b90-a724-21cf7ad4ebb8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2d4e087b766b7f438c46e58a72b8f633b37aad270cc47fbcdb21ef374c356cb7","name":"Femi Onas","registered_at":"2026-06-21T00:59:23Z","symbol":"NIM1769999","token_address":"0x8198dabf3d24b677de730630bb6a9947d9916f76","type":"artist","uuid":"cfe6012a-89e3-4b90-a724-21cf7ad4ebb8"}
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 0x2d4e087b766b7f438c46e58a72b8f633b37aad270cc47fbcdb21ef374c356cb7. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cfe6012a-89e3-4b90-a724-21cf7ad4ebb8.json and https://artists.proofprofile.net/proofs/artist/cfe6012a-89e3-4b90-a724-21cf7ad4ebb8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x2d4e087b766b7f438c46e58a72b8f633b37aad270cc47fbcdb21ef374c356cb7","name":"Femi Onas","registered_at":"2026-06-21T00:59:23Z","symbol":"NIM1769999","token_address":"0x8198dabf3d24b677de730630bb6a9947d9916f76","type":"artist","uuid":"cfe6012a-89e3-4b90-a724-21cf7ad4ebb8"}
album: Would You Be My Lover
  type: MusicAlbum
  date published: 2015-07-05
album: One of a Kind
  type: MusicAlbum
  date published: 2018-07-17
album: It's You
  type: MusicAlbum
  date published: 2019-12-03
album: Pay Attention
  type: MusicAlbum
  date published: 2020-12-16
album: Murderers
  type: MusicAlbum
  date published: 2021-08-25
album: I Won't Tell
  type: MusicAlbum
  date published: 2024-11-13
  track: I Won't Tell
    type: MusicRecording
    duration: PT3M26S
    duration ms: 206361
    explicit: false
    by artist: Femi Onas
    in album: I Won't Tell
      type: MusicAlbum
      date published: 2024-11-13
    isrc code: TCAIW2498515
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T17:15:43+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc77adeb13225e704c47ef4940e0c86feec654c0f740f1781c4defce3b2a74287
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958180
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958180
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAIW2498515
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T17:59:52Z
    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 0xc77adeb13225e704c47ef4940e0c86feec654c0f740f1781c4defce3b2a74287. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/TCAIW2498515.
      date published: 2026-07-15T17:59:52Z
    audio: I Won't Tell
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 96.194
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.813
      additional property: Energy
        type: PropertyValue
        value: 0.509
      additional property: Speechiness
        type: PropertyValue
        value: 0.043
      additional property: Acousticness
        type: PropertyValue
        value: 0.346
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.239
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.488
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.311
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major