Vlastimil Třešňák
type: MusicGroup
genre: avant-garde
genre: big beat
genre: folk
description: Vlastimil Třešňák (born 26 April 1950) is a Czech singer-songwriter and writer. In 1970s, he was member of association Šafrán. He signed Charter 77 and after he was banned for public activities throug
popularity: 10
followers: 1054
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x478cd5a2c5aa4989bcc4a44fbcf06084270509ee8e1cd63d21e464fe09939be1. 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/6296a67e-aa3c-4627-b778-784c94e89c2e.json and https://artists.proofprofile.net/proofs/artist/6296a67e-aa3c-4627-b778-784c94e89c2e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x478cd5a2c5aa4989bcc4a44fbcf06084270509ee8e1cd63d21e464fe09939be1","name":"Vlastimil Třešňák","registered_at":"2026-06-16T23:58:46Z","symbol":"NIM1216765","token_address":"0x0344bdeeaa0ca76f1f6b75072bffee63eed22750","type":"artist","uuid":"6296a67e-aa3c-4627-b778-784c94e89c2e"}
album: Skopolamin
  type: MusicAlbum
  date published: 2007-04-20
album: Němý suflér
  type: MusicAlbum
  date published: 2010-01-01
album: Zeměměřič Atd.
  type: MusicAlbum
  date published: 2010-01-01
  track: Blaničtí Rytíři
    type: MusicRecording
    duration: PT2M49S
    duration ms: 169680
    explicit: false
    by artist: Vlastimil Třešňák
    in album: Zeměměřič Atd.
      type: MusicAlbum
      date published: 2010-01-01
    genre: avant-garde
    genre: big beat
    genre: folk
    isrc code: CZF331000035
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    additional property: OTSVerificationAPI
      type: PropertyValue
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T00:27:51Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fcffaf556f0579f5c1e2c170afc75154e82fc95f38008683627b59338dff678. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/CZF331000035.
      date published: 2026-07-18T00:27:51Z
    audio: Blaničtí Rytíři
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 121.651
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
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        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.563
      additional property: Energy
        type: PropertyValue
        value: 0.411
      additional property: Speechiness
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      additional property: Acousticness
        type: PropertyValue
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      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.157
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.361
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.133
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Alter Ego
  type: MusicAlbum
  date published: 2013-01-01
album: Konvolut
  type: MusicAlbum
  date published: 2017-02-10
album: Kiks
  type: MusicAlbum
  date published: 2022-09-16