F E R XX A N T
type: MusicGroup
popularity: 4
followers: 14
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdef0035211f6a0234c0a15978fa8060a105fec3a7b49b057ddf6288012d612a2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4d2db626-338a-4d7d-83e6-163a7cb93cac.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4d2db626-338a-4d7d-83e6-163a7cb93cac.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4d2db626-338a-4d7d-83e6-163a7cb93cac
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdef0035211f6a0234c0a15978fa8060a105fec3a7b49b057ddf6288012d612a2","name":"F E R XX A N T","registered_at":"2026-06-16T16:27:30Z","symbol":"NIM1109100","token_address":"0xdb992e8e4273eed95c4a36c7a5debe5adf047f00","type":"artist","uuid":"4d2db626-338a-4d7d-83e6-163a7cb93cac"}
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 0xdef0035211f6a0234c0a15978fa8060a105fec3a7b49b057ddf6288012d612a2. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4d2db626-338a-4d7d-83e6-163a7cb93cac.json and https://artists.proofprofile.net/proofs/artist/4d2db626-338a-4d7d-83e6-163a7cb93cac.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0xdef0035211f6a0234c0a15978fa8060a105fec3a7b49b057ddf6288012d612a2","name":"F E R XX A N T","registered_at":"2026-06-16T16:27:30Z","symbol":"NIM1109100","token_address":"0xdb992e8e4273eed95c4a36c7a5debe5adf047f00","type":"artist","uuid":"4d2db626-338a-4d7d-83e6-163a7cb93cac"}
album: Mami Mueve (Original Mix)
  type: MusicAlbum
  date published: 2023-09-16
album: Dame Papi
  type: MusicAlbum
  date published: 2024-03-21
album: B de B3Llvko (Tech House Remix)
  type: MusicAlbum
  date published: 2024-06-27
  track: B de B3Llvko (Tech House Remix)
    type: MusicRecording
    duration: PT4M0S
    duration ms: 240000
    explicit: false
    by artist: F E R XX A N T
    in album: B de B3Llvko (Tech House Remix)
      type: MusicAlbum
      date published: 2024-06-27
    isrc code: QZNJX2458810
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T05:36:52+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x9c9ac7f5794664fac1bf58b1fb4f8d89c52a17d648e30b66fbc0ef4d70276d59
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958245
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958245
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJX2458810
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T05:50:22Z
    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 0x9c9ac7f5794664fac1bf58b1fb4f8d89c52a17d648e30b66fbc0ef4d70276d59. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/QZNJX2458810.
      date published: 2026-07-16T05:50:22Z
    audio: B de B3Llvko (Tech House Remix)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 126.002
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.766
      additional property: Energy
        type: PropertyValue
        value: 0.943
      additional property: Speechiness
        type: PropertyValue
        value: 0.06
      additional property: Acousticness
        type: PropertyValue
        value: 0.002
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.003
      additional property: Liveness
        type: PropertyValue
        value: 0.032
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.861
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.596
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Frgl (Remix, En Vivo)
  type: MusicAlbum
  date published: 2024-09-20
album: Perrea Loca
  type: MusicAlbum
  date published: 2024-11-21
album: Ring the Alarm
  type: MusicAlbum
  date published: 2025-02-17