Hkjhaman
type: MusicGroup
popularity: 5
followers: 114
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2f15156594048939e7c3007850b9ce5579522d4698e44d9839a1f47ed0a3a986
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/e5294d19-563c-4661-b0c4-895056f1656b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e5294d19-563c-4661-b0c4-895056f1656b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e5294d19-563c-4661-b0c4-895056f1656b
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 0x2f15156594048939e7c3007850b9ce5579522d4698e44d9839a1f47ed0a3a986. 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/e5294d19-563c-4661-b0c4-895056f1656b.json and https://artists.proofprofile.net/proofs/artist/e5294d19-563c-4661-b0c4-895056f1656b.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-22T02:53:59Z
album: Totem
  type: MusicAlbum
  date published: 2021-04-08
album: NIETOPERZ
  type: MusicAlbum
  date published: 2021-04-17
album: Blizny
  type: MusicAlbum
  date published: 2021-04-27
album: Nie wiem co u mnie
  type: MusicAlbum
  date published: 2023-12-10
album: Larwa
  type: MusicAlbum
  date published: 2024-09-04
album: Smaug
  type: MusicAlbum
  date published: 2024-09-25
album: Smarkacz
  type: MusicAlbum
  date published: 2024-10-02
album: DNA
  type: MusicAlbum
  date published: 2024-10-23
album: Sensei Senseii
  type: MusicAlbum
  date published: 2024-10-30
album: Vitali
  type: MusicAlbum
  date published: 2024-11-27
album: Spójrz na niego
  type: MusicAlbum
  date published: 2024-12-20
  track: Spójrz na niego
    type: MusicRecording
    duration: PT2M59S
    duration ms: 179147
    explicit: true
    by artist: Hkjhaman
    in album: Spójrz na niego
      type: MusicAlbum
      date published: 2024-12-20
    isrc code: QZZ7T2445989
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T18:09:33+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x734e48adff12af3d1578c7c86b0f7b95cf21025c0c61b8aaf6ffee1f635a074e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958924
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958924
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7T2445989
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T18:54:07Z
    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 0x734e48adff12af3d1578c7c86b0f7b95cf21025c0c61b8aaf6ffee1f635a074e. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7T2445989 — a six-check JSON result.
      date published: 2026-07-20T18:54:07Z
    audio: Spójrz na niego
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 156.005
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.769
      additional property: Energy
        type: PropertyValue
        value: 0.512
      additional property: Speechiness
        type: PropertyValue
        value: 0.366
      additional property: Acousticness
        type: PropertyValue
        value: 0.43
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.108
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.58
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.713
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: BRUK
  type: MusicAlbum
  date published: 2025-02-03
album: Nie mogę powiedzieć pas
  type: MusicAlbum
  date published: 2025-03-26
album: Dyscyplina
  type: MusicAlbum
  date published: 2025-06-03
album: Strefa Dyskomfortu
  type: MusicAlbum
  date published: 2025-08-23
album: SURFER
  type: MusicAlbum
  date published: 2025-09-26