Aleksandra
type: MusicGroup
genre: disco polo
description: REDIRECT Alexandra
popularity: 7
followers: 157
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdaa41c53d23dc3fffaaa2e4bb689e4545ce42258190532802f20a69a3d138dd1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7475c11d-de99-4e7e-8625-aca9ee829ead.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7475c11d-de99-4e7e-8625-aca9ee829ead.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7475c11d-de99-4e7e-8625-aca9ee829ead
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
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 0xdaa41c53d23dc3fffaaa2e4bb689e4545ce42258190532802f20a69a3d138dd1. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7475c11d-de99-4e7e-8625-aca9ee829ead.json and https://artists.proofprofile.net/proofs/artist/7475c11d-de99-4e7e-8625-aca9ee829ead.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
album: Prowadź mnie
  type: MusicAlbum
  date published: 2014-09-29
album: Teraz już wiem
  type: MusicAlbum
  date published: 2017-06-25
album: Nasze Tango
  type: MusicAlbum
  date published: 2017-10-03
album: Święta
  type: MusicAlbum
  date published: 2017-12-21
album: Już nie ma dzikich plaż
  type: MusicAlbum
  date published: 2018-09-10
  track: Już nie ma dzikich plaż
    type: MusicRecording
    duration: PT4M54S
    duration ms: 294000
    explicit: false
    by artist: Aleksandra
    in album: Już nie ma dzikich plaż
      type: MusicAlbum
      date published: 2018-09-10
    genre: disco polo
    isrc code: PL97C1800015
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T00:26:03+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x4d79d88ac3d34c51f63dbb87f3c367434f01b804c9a5c2a5577c7b8f38c67240
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956422
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956422
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL97C1800015
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T01:01:38Z
    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 0x4d79d88ac3d34c51f63dbb87f3c367434f01b804c9a5c2a5577c7b8f38c67240. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/PL97C1800015.
      date published: 2026-07-03T01:01:38Z
    audio: Już nie ma dzikich plaż
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 120.015
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.789
      additional property: Energy
        type: PropertyValue
        value: 0.67
      additional property: Speechiness
        type: PropertyValue
        value: 0.04
      additional property: Acousticness
        type: PropertyValue
        value: 0.139
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.052
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.585
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.197
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Words they come so easy
  type: MusicAlbum
  date published: 2020-06-16
album: Dziś Wieczorem
  type: MusicAlbum
  date published: 2022-04-16
album: selavi
  type: MusicAlbum
  date published: 2022-09-14
album: On Mówił
  type: MusicAlbum
  date published: 2023-02-15
album: I JUST
  type: MusicAlbum
  date published: 2023-06-01
album: I LOVE YOU TONIGHT
  type: MusicAlbum
  date published: 2023-08-15
album: Futbol, futbol, futbol
  type: MusicAlbum
  date published: 2024-05-31
album: Bez hamulców
  type: MusicAlbum
  date published: 2024-06-14
album: Co mi Panie dasz
  type: MusicAlbum
  date published: 2025-01-10
album: Tango na głos, orkiestrę i jeszcze jeden głos
  type: MusicAlbum
  date published: 2025-03-15
album: Testosteron (cover)
  type: MusicAlbum
  date published: 2025-05-30
album: Fale
  type: MusicAlbum
  date published: 2025-06-04