Kaj
type: MusicGroup
description: KAJ may refer to: KAJ (group), a music and comedy group from Finland KAJJ-CD, TV station known as KAJ, in Kalispell, Montana, US Khal Adath Jeshurun (Washington Heights, Manhattan), NYS, US; a syn
popularity: 19
followers: 721
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x559884074ca2010d0b41ce6e20dc41b9cf4cdc2bc3c388165064f9ac84e8c991
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953645
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953645
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3ff74ba1-7799-4bb4-a82c-20196972479d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3ff74ba1-7799-4bb4-a82c-20196972479d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3ff74ba1-7799-4bb4-a82c-20196972479d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T14:31:42Z
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 0x559884074ca2010d0b41ce6e20dc41b9cf4cdc2bc3c388165064f9ac84e8c991. Chain 2 (Bitcoin): anchored in block 953645 (2026-06-14T14:31:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3ff74ba1-7799-4bb4-a82c-20196972479d.json and https://artists.proofprofile.net/proofs/artist/3ff74ba1-7799-4bb4-a82c-20196972479d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T14:31:42Z
album: Load It Up
  type: MusicAlbum
  date published: 2020-03-26
album: 3x3
  type: MusicAlbum
  date published: 2020-08-14
album: Say Too Much
  type: MusicAlbum
  date published: 2020-12-08
album: Angels
  type: MusicAlbum
  date published: 2021-02-23
album: Last Night
  type: MusicAlbum
  date published: 2021-05-05
album: No One But You (Demo)
  type: MusicAlbum
  date published: 2021-07-04
album: 2 Flights
  type: MusicAlbum
  date published: 2021-08-05
album: Deja Vu
  type: MusicAlbum
  date published: 2021-10-25
album: Jade
  type: MusicAlbum
  date published: 2021-11-24
  track: Jade
    type: MusicRecording
    duration: PT3M7S
    duration ms: 187279
    explicit: false
    by artist: Kaj
    in album: Jade
      type: MusicAlbum
      date published: 2021-11-24
    isrc code: QZPLR2171845
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T00:59:55+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5e94ac1aae4797d96a31f0c118331382f33a2143097247cdae2e58fa2445f8cd
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958951
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958951
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPLR2171845
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T02:01:41Z
    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 0x5e94ac1aae4797d96a31f0c118331382f33a2143097247cdae2e58fa2445f8cd. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QZPLR2171845.
      date published: 2026-07-21T02:01:41Z
    audio: Jade
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 123.019
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.785
      additional property: Energy
        type: PropertyValue
        value: 0.444
      additional property: Speechiness
        type: PropertyValue
        value: 0.044
      additional property: Acousticness
        type: PropertyValue
        value: 0.023
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.048
      additional property: Liveness
        type: PropertyValue
        value: 0.1
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.606
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.756
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Ketamine
  type: MusicAlbum
  date published: 2022-02-10
album: Sink Or Swim
  type: MusicAlbum
  date published: 2023-01-10
album: Touch
  type: MusicAlbum
  date published: 2023-01-11
album: Lost
  type: MusicAlbum
  date published: 2023-06-28
album: Ketamine
  type: MusicAlbum
  date published: 2023-09-13
album: Colors
  type: MusicAlbum
  date published: 2023-11-06
album: Games We Play
  type: MusicAlbum
  date published: 2024-01-05
album: Sink Or Swim
  type: MusicAlbum
  date published: 2024-03-13
album: Lost
  type: MusicAlbum
  date published: 2024-03-13
album: Games We Play EP
  type: MusicAlbum
  date published: 2024-03-13
album: Touch
  type: MusicAlbum
  date published: 2024-03-13
album: Jade EP
  type: MusicAlbum
  date published: 2024-03-13
album: Ketamine
  type: MusicAlbum
  date published: 2024-03-13
album: Sweeter
  type: MusicAlbum
  date published: 2024-03-18
album: Jade 2.0
  type: MusicAlbum
  date published: 2024-04-24
album: Dive
  type: MusicAlbum
  date published: 2024-08-27
album: WXSTED
  type: MusicAlbum
  date published: 2025-03-19