Alex Kain
type: MusicGroup
popularity: 25
followers: 2476
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7d07f62de6de9b8807275ab90bf04cf3c46b995ce57bfb1b6504d5e4b83a0a60
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/18db2e96-4990-41bf-811c-e499af99a289.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/18db2e96-4990-41bf-811c-e499af99a289.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/18db2e96-4990-41bf-811c-e499af99a289
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7d07f62de6de9b8807275ab90bf04cf3c46b995ce57bfb1b6504d5e4b83a0a60","name":"Alex Kain","registered_at":"2026-06-11T12:50:32Z","symbol":"NIM0033742","token_address":"0x971463aa12c55335d4d309cfc6d82d03205dfeba","type":"artist","uuid":"18db2e96-4990-41bf-811c-e499af99a289"}
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 0x7d07f62de6de9b8807275ab90bf04cf3c46b995ce57bfb1b6504d5e4b83a0a60. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/18db2e96-4990-41bf-811c-e499af99a289.json and https://artists.proofprofile.net/proofs/artist/18db2e96-4990-41bf-811c-e499af99a289.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x7d07f62de6de9b8807275ab90bf04cf3c46b995ce57bfb1b6504d5e4b83a0a60","name":"Alex Kain","registered_at":"2026-06-11T12:50:32Z","symbol":"NIM0033742","token_address":"0x971463aa12c55335d4d309cfc6d82d03205dfeba","type":"artist","uuid":"18db2e96-4990-41bf-811c-e499af99a289"}
album: Chcę cię więcej
  type: MusicAlbum
  date published: 2020-08-27
album: Usta
  type: MusicAlbum
  date published: 2020-11-12
album: W mojej głowie
  type: MusicAlbum
  date published: 2021-10-14
album: Ona pyta się
  type: MusicAlbum
  date published: 2021-11-08
album: Stolica
  type: MusicAlbum
  date published: 2021-11-12
album: Święta i prezenty
  type: MusicAlbum
  date published: 2021-12-06
album: Mała Tańcz
  type: MusicAlbum
  date published: 2022-01-28
  track: Mała Tańcz
    type: MusicRecording
    duration: PT2M20S
    duration ms: 140296
    explicit: false
    by artist: Alex Kain
    in album: Mała Tańcz
      type: MusicAlbum
      date published: 2022-01-28
    isrc code: PLI363695740
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T02:45:19+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa183c6c9a9738618314455259f25999fd8bc7b797f9959648a190a9f0b450673
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956889
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956889
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLI363695740
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T06:56:49Z
    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 0xa183c6c9a9738618314455259f25999fd8bc7b797f9959648a190a9f0b450673. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/PLI363695740.
      date published: 2026-07-06T06:56:49Z
    audio: Mała Tańcz
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 126.099
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.778
      additional property: Energy
        type: PropertyValue
        value: 0.519
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.434
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.145
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.621
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.548
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Robię co chcę
  type: MusicAlbum
  date published: 2022-03-04
album: Tańczę na stole
  type: MusicAlbum
  date published: 2022-05-13
album: Tacy sami
  type: MusicAlbum
  date published: 2022-10-21