Barbara Kurdej-Szatan
type: MusicGroup
genre: disco polo
description: Barbara Dominika Kurdej-Szatan (born 22 August 1985; ) is a Polish stage, film, and television actress, singer, and television presenter. Musical Background Barbara Kurdej-Szatan was born on 22 Aug
popularity: 8
followers: 152
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSVerifyInstructions
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  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
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  date published: 2026-06-17T08:11:48Z
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track: Dzień Dobry, Kocham Cię
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  by artist: Liber
  by artist: Barbara Kurdej-Szatan
  in album: Dzień Dobry, Kocham Cię
    type: MusicAlbum
    date published: 2014
  genre: disco-polo
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  additional property: OTSTimestamp
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  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
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ee1b412aa474e5187c464ba517dd477363c1714e3c89370def7c0341da2c5c4. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/PLB601200479.
    date published: 2026-06-13T13:32:09Z
  audio: Dzień Dobry, Kocham Cię
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    additional property: Speechiness
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track: Dzień dobry, kocham Cię - Radio Edit
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  duration: PT2M49S
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  by artist: Barbara Kurdej-Szatan
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    type: MusicAlbum
    date published: 2014-11-05
  genre: disco-polo
  isrc code: PLB601200479
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  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
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ee1b412aa474e5187c464ba517dd477363c1714e3c89370def7c0341da2c5c4. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/PLB601200479.
    date published: 2026-07-08T03:22:41Z
  audio: Dzień dobry, kocham Cię - Radio Edit
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track: Serce To Jest Muzyk

Serce To Jest Muzyk
type: MusicRecording
duration: PT3M43S
duration ms: 223213
explicit: false
by artist: Rafał Brzozowski
by artist: Barbara Kurdej-Szatan
in album: Moje Serce To Jest Muzyk, Czyli Polskie Standardy
  type: MusicAlbum
  date published: 2016-11-18
genre: polish-pop
subject of: OpenTimestamps Proof of Existence
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  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc9166c780b9f6c421385bc94ba30e6ae956333eac5862252c1522f1188f332. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/PLUM71600791.
  date published: 2026-07-31T02:19:15Z
audio: Serce To Jest Muzyk
  type: AudioObject
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  additional property: Speechiness
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  additional property: Acousticness
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    type: PropertyValue
    value: -8.91
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: PLUM71600791
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additional property: OTSHash
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additional property: OTSTimestamp
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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

Valence (Positivity)
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value: 0.564

Loudness (dB)
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value: -10.907

Key Name
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value: C#

Mode Name
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value: Major