MXC J
type: MusicGroup
popularity: 10
followers: 42
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa9def17febca3a96baadf9ee4c8dbdb499ada2d67603194b9bc07252dcb8b27b
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/af3cd4b8-55fa-4b20-87a1-0d3bb64550e2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/af3cd4b8-55fa-4b20-87a1-0d3bb64550e2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/af3cd4b8-55fa-4b20-87a1-0d3bb64550e2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa9def17febca3a96baadf9ee4c8dbdb499ada2d67603194b9bc07252dcb8b27b","name":"MXC J","registered_at":"2026-06-20T11:30:14Z","symbol":"NIM1602599","token_address":"0xa6b55e91fdce87b6a49966d699c94e5c6c9ba057","type":"artist","uuid":"af3cd4b8-55fa-4b20-87a1-0d3bb64550e2"}
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 0xa9def17febca3a96baadf9ee4c8dbdb499ada2d67603194b9bc07252dcb8b27b. 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/af3cd4b8-55fa-4b20-87a1-0d3bb64550e2.json and https://artists.proofprofile.net/proofs/artist/af3cd4b8-55fa-4b20-87a1-0d3bb64550e2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xa9def17febca3a96baadf9ee4c8dbdb499ada2d67603194b9bc07252dcb8b27b","name":"MXC J","registered_at":"2026-06-20T11:30:14Z","symbol":"NIM1602599","token_address":"0xa6b55e91fdce87b6a49966d699c94e5c6c9ba057","type":"artist","uuid":"af3cd4b8-55fa-4b20-87a1-0d3bb64550e2"}
album: OUTRO
  type: MusicAlbum
  date published: 2022-03-09
album: SENEGAL TAPES
  type: MusicAlbum
  date published: 2022-10-18
album: SENEGAL TAPES XTD
  type: MusicAlbum
  date published: 2022-12-31
album: 404 ERROR
  type: MusicAlbum
  date published: 2023-06-23
album: SENEGAL TAPES, Vol. 2
  type: MusicAlbum
  date published: 2025-02-07
  track: fukk akk benn
    type: MusicRecording
    duration: PT1M49S
    duration ms: 109333
    explicit: false
    by artist: MXC J
    in album: SENEGAL TAPES, Vol. 2
      type: MusicAlbum
      date published: 2025-02-07
    isrc code: QZDA42508885
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T23:44:12+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x76779cd01c4b7ef477c954a38460280b0e3bdc6036688f7d6b4c4a17cfcefb58
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956857
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956857
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA42508885
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:26:17Z
    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 0x76779cd01c4b7ef477c954a38460280b0e3bdc6036688f7d6b4c4a17cfcefb58. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZDA42508885.
      date published: 2026-07-06T01:26:17Z
    audio: fukk akk benn
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 89.962
      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: 0.702
      additional property: Energy
        type: PropertyValue
        value: 0.452
      additional property: Speechiness
        type: PropertyValue
        value: 0.074
      additional property: Acousticness
        type: PropertyValue
        value: 0.155
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.779
      additional property: Liveness
        type: PropertyValue
        value: 0.098
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.582
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.672
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
  track: fukk akk ñent
    type: MusicRecording
    duration: PT1M36S
    duration ms: 96000
    explicit: false
    by artist: MXC J
    in album: SENEGAL TAPES, Vol. 2
      type: MusicAlbum
      date published: 2025-02-07
    isrc code: QZDA42508888
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T06:52:14+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x85b5b8d3071e6537a56a72a1c4de77f9d03dd3bd3f7a1637321fe5cb4a2bb9ad
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958980
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958980
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA42508888
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T07:04:12Z
    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 0x85b5b8d3071e6537a56a72a1c4de77f9d03dd3bd3f7a1637321fe5cb4a2bb9ad. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QZDA42508888.
      date published: 2026-07-21T07:04:12Z
    audio: fukk akk ñent
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 84.977
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.761
      additional property: Energy
        type: PropertyValue
        value: 0.487
      additional property: Speechiness
        type: PropertyValue
        value: 0.145
      additional property: Acousticness
        type: PropertyValue
        value: 0.637
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Instrumentalness
type: PropertyValue
value: 0.919

Liveness
type: PropertyValue
value: 0.186

Valence (Positivity)
type: PropertyValue
value: 0.906

Loudness (dB)
type: PropertyValue
value: -16.129

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Minor