Kasia
type: MusicGroup
description: Kasia () is a Polish diminutive form of given name, a shortened version of the name Katarzyna. Notable people Kasia Cerekwicka (born 1980), singer Kasia Domanska (born 1972), painter Kasia Haddad (b
popularity: 6
followers: 960
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8c3dce08f38ee7daaf8fcf47c73a74b4435b466ab838134117aa6a1b107af047
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954647
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954647
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d64069fc-1b86-412a-b1d7-42ac72590606.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d64069fc-1b86-412a-b1d7-42ac72590606.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d64069fc-1b86-412a-b1d7-42ac72590606
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T04:36:58Z
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 0x8c3dce08f38ee7daaf8fcf47c73a74b4435b466ab838134117aa6a1b107af047. Chain 2 (Bitcoin): anchored in block 954647 (2026-06-21T04:36:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d64069fc-1b86-412a-b1d7-42ac72590606.json and https://artists.proofprofile.net/proofs/artist/d64069fc-1b86-412a-b1d7-42ac72590606.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T04:36:58Z
album: Spring
  type: MusicAlbum
  date published: 2021-07-10
album: Queens
  type: MusicAlbum
  date published: 2022-03-05
album: Dreams
  type: MusicAlbum
  date published: 2022-11-17
album: Heartstrings
  type: MusicAlbum
  date published: 2023-12-29
album: Astral Travel
  type: MusicAlbum
  date published: 2024-07-21
album: Spells & Shadows
  type: MusicAlbum
  date published: 2024-08-19
  track: Spells & Shadows
    type: MusicRecording
    duration: PT4M7S
    duration ms: 247000
    explicit: false
    by artist: Kasia
    in album: Spells & Shadows
      type: MusicAlbum
      date published: 2024-08-19
    isrc code: QZRP42490422
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-02T21:05:28+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0404e2c36ddb919a30247125e0b6bf51b79fe26b40c536d2c2327926157fd27c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956404
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956404
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZRP42490422
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T03:42:50Z
    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 0x0404e2c36ddb919a30247125e0b6bf51b79fe26b40c536d2c2327926157fd27c. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T03:42:50Z), 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/QZRP42490422.
      date published: 2026-07-17T03:42:50Z
    audio: Spells & Shadows
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 119.998
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.699
      additional property: Energy
        type: PropertyValue
        value: 0.929
      additional property: Speechiness
        type: PropertyValue
        value: 0.041
      additional property: Acousticness
        type: PropertyValue
        value: 0.001
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.455
      additional property: Liveness
        type: PropertyValue
        value: 0.173
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.217
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.034
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Retrograde
  type: MusicAlbum
  date published: 2024-11-22
album: moonchild
  type: MusicAlbum
  date published: 2025-07-04