Waldemar Kazanecki
type: MusicGroup
description: Waldemar Kazanecki ( (29 April 1929 – 20 December 1991) was a Polish pianist, conductor and composer. Life and career Waldemar Kazanecki was born and died in Warsaw. He began as a music editor on Pol
popularity: 12
followers: 277
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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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 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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41a600fa47668ec9ade4bcd21a2beb669e3d377e3b7d7552c9c2ef5e3f164ba3. Chain 2 (Bitcoin): anchored in block 953762 (2026-06-15T08:21:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ba870a0a-b191-46c1-a50e-f68f5c4d834c.json and https://artists.proofprofile.net/proofs/artist/ba870a0a-b191-46c1-a50e-f68f5c4d834c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T08:21:23Z
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album: Walc Barbary z filmu "Noce i dnie"
  type: MusicAlbum
  date published: 2025-08-06
track: Noce i dnie (From "Noce i dnie")
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  duration: PT2M18S
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  by artist: Waldemar Kazanecki
  by artist: Maksym Rzemiński
  in album: Inception
    type: MusicAlbum
    date published: 2018-02-02
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  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  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 0xcb442a2d1c12a67c6669450688203a461ce12b8ae0cea35296b2b14d5fa4e32a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/PLA161412709.
    date published: 2026-07-02T03:30:09Z
  audio: Noce i dnie (From "Noce i dnie")
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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      value: -30.166
    additional property: Key Name
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      value: A
    additional property: Mode Name
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      value: Minor
track: Theme (From "Dom")
  type: MusicRecording
  duration: PT3M52S
  duration ms: 232200
  explicit: false
  by artist: Waldemar Kazanecki
  by artist: Maksym Rzemiński
  by artist: Radom Chamber Orchestra
  by artist: Dawid Runtz
  in album: Maximus: The Greatest Movie Soundtracks
    type: MusicAlbum
    date published: 2018-11-02
  isrc code: PLA161851103
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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    value: 2026-06-13T13:32:09Z
  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 0x944719cc65fedc2384b213e1803d8a2a55eda87385da8f09a3de2f908a70e1eb. 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/PLA161851103.
    date published: 2026-06-13T13:32:09Z
  audio: Theme (From "Dom")
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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      value: 0.034
    additional property: Acousticness
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      value: 0.971
    additional property: Instrumentalness
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    additional property: Liveness
      type: PropertyValue
      value: 0.087
    additional property: Valence (Positivity)
    additional property: Loudness (dB)
    additional property: Key Name
    additional property: Mode Name

Valence (Positivity)
type: PropertyValue
value: 0.047

Loudness (dB)
type: PropertyValue
value: -22.996

Key Name
type: PropertyValue
value: A

Mode Name
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value: Major