Marek Kaliszuk
type: MusicGroup
popularity: 6
followers: 342
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x00ad238e244fd21c9ed5eb6d09b882caf1458f2fb20d59dc9f03d0b701e48303
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954549
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a83c7aa1-9235-4e7c-99d7-82a47abdff06.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a83c7aa1-9235-4e7c-99d7-82a47abdff06.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a83c7aa1-9235-4e7c-99d7-82a47abdff06
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T10:56:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x00ad238e244fd21c9ed5eb6d09b882caf1458f2fb20d59dc9f03d0b701e48303","name":"Marek Kaliszuk","registered_at":"2026-06-20T08:48:02Z","symbol":"NIM1569873","token_address":"0x303d6854ddc6e98c5d52fb8e7056e7950dcaa7d5","type":"artist","uuid":"a83c7aa1-9235-4e7c-99d7-82a47abdff06"}
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 0x00ad238e244fd21c9ed5eb6d09b882caf1458f2fb20d59dc9f03d0b701e48303. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a83c7aa1-9235-4e7c-99d7-82a47abdff06.json and https://artists.proofprofile.net/proofs/artist/a83c7aa1-9235-4e7c-99d7-82a47abdff06.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T10:56:20Z
  text: {"copyright_id":"0x00ad238e244fd21c9ed5eb6d09b882caf1458f2fb20d59dc9f03d0b701e48303","name":"Marek Kaliszuk","registered_at":"2026-06-20T08:48:02Z","symbol":"NIM1569873","token_address":"0x303d6854ddc6e98c5d52fb8e7056e7950dcaa7d5","type":"artist","uuid":"a83c7aa1-9235-4e7c-99d7-82a47abdff06"}
album: I Won't Stop (Radio Edit)
  type: MusicAlbum
  date published: 2015-07-01
album: I Won't Stop (Electro Mix)
  type: MusicAlbum
  date published: 2015-07-01
album: I Won't Stop (Club Mix)
  type: MusicAlbum
  date published: 2015-07-01
album: Naprzeciw
  type: MusicAlbum
  date published: 2017-08-21
album: Bez Ciebie nie ma mnie
  type: MusicAlbum
  date published: 2017-10-23
album: Aua
  type: MusicAlbum
  date published: 2019-05-19
album: This Moment
  type: MusicAlbum
  date published: 2020-02-28
album: KaWe
  type: MusicAlbum
  date published: 2020-10-23
album: Bezpowrotnie
  type: MusicAlbum
  date published: 2022-09-22
album: Bezpowrotnie
  type: MusicAlbum
  date published: 2022-09-22
album: Inny nie będę
  type: MusicAlbum
  date published: 2023-06-10
album: Tyle lat
  type: MusicAlbum
  date published: 2023-06-16
album: Tyle lat
  type: MusicAlbum
  date published: 2023-06-16
album: Inny nie będę
  type: MusicAlbum
  date published: 2023-09-05
track: Czas Ołowiu

Czas Ołowiu
type: MusicRecording
duration: PT4M10S
duration ms: 250684
explicit: false
by artist: Razem Robimy Dobro
by artist: Kasia Wilk
by artist: Natalia Zastępa
by artist: Grzegorz Skawinski
by artist: Kuba Badach
by artist: Mateusz Ziółko
by artist: Wojtek Cugowski
by artist: Marek Kaliszuk
by artist: KasjaN
in album: Czas Ołowiu
  type: MusicAlbum
  date published: 2021-02-04
isrc code: PLUM72100038
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T22:35:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x567ce6d672ba5b4690b5390e7614136d1ea8e23b08de960c2b0592fc8d7bd030
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLUM72100038
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 956302
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:30:09+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x567ce6d672ba5b4690b5390e7614136d1ea8e23b08de960c2b0592fc8d7bd030. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/PLUM72100038.
  date published: 2026-07-02T03:55:08Z
audio: Czas Ołowiu
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 124.413
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.636
  additional property: Energy
    type: PropertyValue
    value: 0.738
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.173
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.109
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.381
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.07
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major