Doublekay
type: MusicGroup
popularity: 5
followers: 7
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xac01cdd50609e2757dff6f2c5d5410f3a0824d02dded2c2aff3fc5f28b4ec37e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953923
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953923
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1cbf0b2c-322e-4194-afe9-b56afef6219d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1cbf0b2c-322e-4194-afe9-b56afef6219d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1cbf0b2c-322e-4194-afe9-b56afef6219d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T09:51:37Z
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 0xac01cdd50609e2757dff6f2c5d5410f3a0824d02dded2c2aff3fc5f28b4ec37e. Chain 2 (Bitcoin): anchored in block 953923 (2026-06-16T09:51:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1cbf0b2c-322e-4194-afe9-b56afef6219d.json and https://artists.proofprofile.net/proofs/artist/1cbf0b2c-322e-4194-afe9-b56afef6219d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T09:51:37Z
album: No more love
  type: MusicAlbum
  date published: 2021-05-12
album: La vie
  type: MusicAlbum
  date published: 2021-06-23
album: THUSIA
  type: MusicAlbum
  date published: 2021-09-29
album: ABATS LES
  type: MusicAlbum
  date published: 2022-02-21
album: HIGH LIFE
  type: MusicAlbum
  date published: 2022-06-10
album: RODEO
  type: MusicAlbum
  date published: 2022-10-15
album: LA HAINE
  type: MusicAlbum
  date published: 2023-01-01
album: BALANCE
  type: MusicAlbum
  date published: 2023-07-11
album: WU-TANG
  type: MusicAlbum
  date published: 2023-11-17
album: KALOU
  type: MusicAlbum
  date published: 2024-02-09
album: PAS CHANGÉ
  type: MusicAlbum
  date published: 2024-06-07
album: LE KAY
  type: MusicAlbum
  date published: 2024-11-22
  track: GLK
    type: MusicRecording
    duration: PT2M27S
    duration ms: 147428
    explicit: true
    by artist: Doublekay
    in album: LE KAY
      type: MusicAlbum
      date published: 2024-11-22
    isrc code: QZZ7L2423659
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T17:23:04+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2343e7560ab49a684c4bf8ab26f4013a3cb918eaffbdf17cb6d40c28a398f048
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956545
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956545
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7L2423659
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T19:59:51Z
    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 0x2343e7560ab49a684c4bf8ab26f4013a3cb918eaffbdf17cb6d40c28a398f048. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZZ7L2423659.
      date published: 2026-07-03T19:59:51Z
    audio: GLK
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 140.128
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.777
      additional property: Energy
        type: PropertyValue
        value: 0.59
      additional property: Speechiness
        type: PropertyValue
        value: 0.086
      additional property: Acousticness
        type: PropertyValue
        value: 0.112
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.209
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.473
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.899
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: PAPERS
  type: MusicAlbum
  date published: 2025-01-24
album: WHIP
  type: MusicAlbum
  date published: 2025-04-04
album: la vie du vouga
  type: MusicAlbum
  date published: 2025-08-08
album: bag
  type: MusicAlbum
  date published: 2025-08-15