J4
type: MusicGroup
description: J4/J04, J-4/J-04 or J.4/J.04 may refer to: In science and academia ATC code J04 Antimycobacterials, a subgroup of the Anatomical Therapeutic Chemical Classification System Janko group J4, in mat
popularity: 5
followers: 428
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc26ce8ba8d85f0eb8456ab0e1397df1322acc47f214d98f9a11e1f662da8730c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f69d9ddf-2029-48de-9597-f2791511b3fa.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f69d9ddf-2029-48de-9597-f2791511b3fa.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f69d9ddf-2029-48de-9597-f2791511b3fa
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
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 0xc26ce8ba8d85f0eb8456ab0e1397df1322acc47f214d98f9a11e1f662da8730c. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f69d9ddf-2029-48de-9597-f2791511b3fa.json and https://artists.proofprofile.net/proofs/artist/f69d9ddf-2029-48de-9597-f2791511b3fa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
album: Two Front Seats
  type: MusicAlbum
  date published: 2019-07-19
album: Thinking 'Bout You
  type: MusicAlbum
  date published: 2019-09-13
album: Changes (Acoustic)
  type: MusicAlbum
  date published: 2019-10-25
album: Bigger
  type: MusicAlbum
  date published: 2020-05-15
album: Anchor
  type: MusicAlbum
  date published: 2021-02-12
album: Anchor (Live at The Record Shop)
  type: MusicAlbum
  date published: 2021-03-12
album: Better
  type: MusicAlbum
  date published: 2021-04-30
album: Changes
  type: MusicAlbum
  date published: 2021-09-24
album: Stay with Me
  type: MusicAlbum
  date published: 2022-07-22
album: J4 (Live at The Record Shop)
  type: MusicAlbum
  date published: 2022-08-19
album: Buffalo
  type: MusicAlbum
  date published: 2022-09-09
album: Heart Broken
  type: MusicAlbum
  date published: 2023-03-31
album: Vapor
  type: MusicAlbum
  date published: 2023-05-26
album: All American
  type: MusicAlbum
  date published: 2023-06-30
album: Lonely
  type: MusicAlbum
  date published: 2023-11-10
album: Yuletidin' with You (from Christmas at the Amish Bakery)
  type: MusicAlbum
  date published: 2023-12-10
album: Icarus
  type: MusicAlbum
  date published: 2024-01-15
album: Kids Again
  type: MusicAlbum
  date published: 2024-02-09
album: Nothing Hurts Like Love
  type: MusicAlbum
  date published: 2024-03-15
album: Raining Ashes
  type: MusicAlbum
  date published: 2024-04-19
album: Mom I Made It (To Music Row)
  type: MusicAlbum
  date published: 2024-05-10
album: 10 Year Town
  type: MusicAlbum
  date published: 2024-07-19
album: Beautiful Lies
  type: MusicAlbum
  date published: 2025-01-23
album: Jacket
  type: MusicAlbum
  date published: 2025-02-21
  track: Jacket
    type: MusicRecording
    duration: PT3M28S
    duration ms: 208687
    explicit: false
    by artist: J4
    in album: Jacket
      type: MusicAlbum
      date published: 2025-02-21
    isrc code: QZES82576697
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T03:07:37+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5f436f4ff3e70e9758116a621a01c228c068de666942669fba91e55c724e7664
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958484
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958484
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES82576697
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T03:34:53Z
    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 0x5f436f4ff3e70e9758116a621a01c228c068de666942669fba91e55c724e7664. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZES82576697.
      date published: 2026-07-18T03:34:53Z
    audio: Jacket
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 159.673
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.554
      additional property: Energy
        type: PropertyValue
        value: 0.166
      additional property: Speechiness
        type: PropertyValue
        value: 0.051
      additional property: Acousticness
        type: PropertyValue
        value: 0.704
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.086
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.396
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.93
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Romeo and Juliet
  type: MusicAlbum
  date published: 2025-05-30
album: Every Song About You
  type: MusicAlbum
  date published: 2025-07-11