Ladislav Chudík
type: MusicGroup
description: Ladislav Chudík (27 May 1924 – 29 June 2015) was a Slovak actor. He appeared in more than fifty films. Selected filmography + Film Year Title Role Notes 2009Kawasaki's Rose 1985Forget Mozart 1961A So
popularity: 20
followers: 652
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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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 0x39ef7bd697756e6b19ce75497f6bd11f17513b00d149c1037c3990dad27e4643. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fc7b33a9-a175-4956-8a98-9463dda59fdc.json and https://artists.proofprofile.net/proofs/artist/fc7b33a9-a175-4956-8a98-9463dda59fdc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T18:10:31Z
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album: Rozprávky o psíčkovi a mačičke
  type: MusicAlbum
  date published: 2013-05-01
  track: Ako hrali divadlo a čo bolo na Mikuláša
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    duration: PT12M11S
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    by artist: Ladislav Chudík
    in album: Rozprávky o psíčkovi a mačičke
      type: MusicAlbum
      date published: 2013-05-01
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    additional property: OTSVerificationAPI
      type: PropertyValue
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-02T21:01:51Z
    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 0x3b53710971a84e9671f8b5417b676fb3f5ad29ceecf3a72235083733c99da3fc. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/SKA111315604.
      date published: 2026-07-02T21:01:51Z
    audio: Ako hrali divadlo a čo bolo na Mikuláša
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      additional property: Tempo (BPM)
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        value: 11
      additional property: Mode (Major/Minor)
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        value: 1
      additional property: Time Signature
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        value: 3
      additional property: Danceability
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      additional property: Energy
        type: PropertyValue
        value: 0.259
      additional property: Speechiness
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      additional property: Acousticness
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        value: 0.122
      additional property: Instrumentalness
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      additional property: Liveness
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        value: 0.156
      additional property: Valence (Positivity)
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        value: 0.456
      additional property: Loudness (dB)
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        value: -14.241
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: tichý dvojhlas (Ladislav Chudík recituje verše Jaroslava Seiferta)
  type: MusicAlbum
  date published: 2021-10-12