Quadrakey
type: MusicGroup
popularity: 8
followers: 699
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9f4e713b090646185420c56d78794e366dbd579483be296322378804ec5c5774
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/e09bd012-c7ec-4c03-bbd8-d60825f7af37.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e09bd012-c7ec-4c03-bbd8-d60825f7af37.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e09bd012-c7ec-4c03-bbd8-d60825f7af37
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f4e713b090646185420c56d78794e366dbd579483be296322378804ec5c5774. 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/e09bd012-c7ec-4c03-bbd8-d60825f7af37.json and https://artists.proofprofile.net/proofs/artist/e09bd012-c7ec-4c03-bbd8-d60825f7af37.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
album: 24 Hour Time
  type: MusicAlbum
  date published: 2015-03-19
album: 24 Hour Time
  type: MusicAlbum
  date published: 2015-04-20
album: Mars EP
  type: MusicAlbum
  date published: 2019-12-06
album: Better Flight
  type: MusicAlbum
  date published: 2020-03-06
album: Lost In Time
  type: MusicAlbum
  date published: 2020-09-11
album: Mozaic
  type: MusicAlbum
  date published: 2020-10-15
album: Coming Closer
  type: MusicAlbum
  date published: 2021-05-27
  track: Coming Closer
    type: MusicRecording
    duration: PT6M28S
    duration ms: 388004
    explicit: false
    by artist: Quadrakey
    in album: Coming Closer
      type: MusicAlbum
      date published: 2021-05-27
    isrc code: GBKQU2156029
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T05:24:08+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x43164e220da83444799b172ca33645df1129b5fa03f2f982a565d6e9e18842c0
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956790
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956790
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKQU2156029
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T12:31:54Z
    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 0x43164e220da83444799b172ca33645df1129b5fa03f2f982a565d6e9e18842c0. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/GBKQU2156029.
      date published: 2026-07-05T12:31:54Z
    audio: Coming Closer
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 119.995
      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: 0.812
      additional property: Energy
        type: PropertyValue
        value: 0.931
      additional property: Speechiness
        type: PropertyValue
        value: 0.049
      additional property: Acousticness
        type: PropertyValue
        value: 0.012
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.867
      additional property: Liveness
        type: PropertyValue
        value: 0.09
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.901
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.349
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Coming Closer
  type: MusicAlbum
  date published: 2021-06-10
album: Another Idea
  type: MusicAlbum
  date published: 2021-11-12
album: Soon After
  type: MusicAlbum
  date published: 2021-12-10
album: Illusion
  type: MusicAlbum
  date published: 2022-02-18
album: Illusion
  type: MusicAlbum
  date published: 2022-02-18
album: Flowers 4 You
  type: MusicAlbum
  date published: 2023-06-09
album: Head Over Heels
  type: MusicAlbum
  date published: 2024-05-24
album: To The Moon And Back
  type: MusicAlbum
  date published: 2024-06-28
album: Do It Right
  type: MusicAlbum
  date published: 2024-11-29