Ivan Hlas
type: MusicGroup
genre: big beat
popularity: 30
followers: 13907
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb769a97b1fd0f1d47413e6af564355cf8ba9ec2b14ce03264b3db1997f2185a4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953423
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6446d5dc-b46b-4e2b-967a-0c2db906a61b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6446d5dc-b46b-4e2b-967a-0c2db906a61b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6446d5dc-b46b-4e2b-967a-0c2db906a61b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T21:20:00Z
additional property: OTSCanonicalRecord
  type: PropertyValue
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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 → block must exist at that height 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 0xb769a97b1fd0f1d47413e6af564355cf8ba9ec2b14ce03264b3db1997f2185a4. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6446d5dc-b46b-4e2b-967a-0c2db906a61b.json and https://artists.proofprofile.net/proofs/artist/6446d5dc-b46b-4e2b-967a-0c2db906a61b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
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album: Tichá píseň. Balady a písně
  type: MusicAlbum
  date published: 2020-03-06
  track: Balada o uvadlé růži
    type: MusicRecording
    duration: PT2M28S
    duration ms: 148226
    explicit: false
    by artist: Petr Spálený
    in album: Tichá píseň. Balady a písně
      type: MusicAlbum
      date published: 2020-03-06
  track: Mávej křídly snů
    type: MusicRecording
    duration: PT3M6S
    duration ms: 186306
    explicit: false
    by artist: Václav Neckář
    by artist: Jindřich Brabec
    in album: Tichá píseň. Balady a písně
      type: MusicAlbum
      date published: 2020-03-06
  track: Marylin, goodbye
    type: MusicRecording
    duration: PT5M32S
    duration ms: 332800
    explicit: false
    by artist: Ota Petřina
    in album: Tichá píseň. Balady a písně
      type: MusicAlbum
      date published: 2020-03-06
  track: Já vím, co mi chceš říct
    type: MusicRecording
    duration: PT3M3S
    duration ms: 183213
    explicit: false
    by artist: Karel Černoch
    in album: Tichá píseň. Balady a písně
      type: MusicAlbum
      date published: 2020-03-06
  track: Balada o čase
    type: MusicRecording
    duration: PT3M49S
    duration ms: 229586
    explicit: false
    by artist: Václav Neckář
    by artist: Jan Neckář
    by artist: Bacily
    in album: Tichá píseň. Balady a písně
      type: MusicAlbum
      date published: 2020-03-06
  track: Láska trojdenní
    type: MusicRecording
    duration: PT3M14S
    duration ms: 194240
    explicit: false
    by artist: Olympic
    in album: Tichá píseň. Balady a písně
      type: MusicAlbum
      date published: 2020-03-06
  track: Kolik je různých světů
    type: MusicRecording
    duration: PT3M18S
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    by artist: Karel Zich
    in album: Tichá píseň. Balady a písně
      type: MusicAlbum
      date published: 2020-03-06
  track: Balada o tichu
    type: MusicRecording
    duration: PT3M30S
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    by artist: Věra Wajsarová
    in album: Tichá píseň. Balady a písně
      type: MusicAlbum
      date published: 2020-03-06
  track: Černobílá
    type: MusicRecording
    duration: PT4M21S
    duration ms: 261800
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    by artist: Pavel Váně
    by artist: Bronz
    in album: Tichá píseň. Balady a písně
      type: MusicAlbum
      date published: 2020-03-06
  track: Tuhle chybu chtěl bych mít
    type: MusicRecording
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    duration ms: 176440
    explicit: false
    by artist: Karel Zich
    in album: Tichá píseň. Balady a písně
      type: MusicAlbum
      date published: 2020-03-06
  track: Snění v peřinách
    type: MusicRecording
    duration: PT4M21S
    duration ms: 261079
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    by artist: Věra Špinarová
    in album: Tichá píseň. Balady a písně
      type: MusicAlbum
      date published: 2020-03-06
  track: Možná
    type: MusicRecording
    duration: PT3M8S
    duration ms: 188866
    explicit: false
    by artist: Ivan Hlas
    by artist: Nahlas
    in album: Tichá píseň. Balady a písně
      type: MusicAlbum
      date published: 2020-03-06
  track: Já vím
    type: MusicRecording
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    duration ms: 243706
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    by artist: Věra Špinarová
    in album: Tichá píseň. Balady a písně
      type: MusicAlbum
      date published: 2020-03-06
  track: Co Den, To Zázrak - Bonus Track
    type: MusicRecording
    duration: PT3M37S
    duration ms: 217720
    explicit: false
    by artist: Jitka Zelenková
    in album: Tichá píseň. Balady a písně
      type: MusicAlbum
      date published: 2020-03-06
  track: Skleněné sny
    type: MusicRecording
    duration: PT3M40S
    duration ms: 220840
    explicit: false
    by artist: Hana Zagorová
    in album: Tichá píseň. Balady a písně
      type: MusicAlbum
      date published: 2020-03-06
  track: Má daleká
    type: MusicRecording
    duration: PT2M36S
    duration ms: 156800
    explicit: false
    by artist: Michal Penk
    in album: Tichá píseň. Balady a písně
      type: MusicAlbum
      date published: 2020-03-06
    isrc code: CZA168800182
  track: V penzionu svět
    type: MusicRecording
    duration: PT5M5S
    duration ms: 305720
    explicit: false
    by artist: Richard Muller
    in album: Tichá píseň. Balady a písně
      type: MusicAlbum
      date published: 2020-03-06
  track: Život utíká
  track: Tichá píseň
  track: Jen tak světem si plout
  track: Balada
album: Všichni Dobří Andělé
album: Nejzpívanější české písničky
album: Do tretice Stastne a vesele
album: Stastne a vesele...
album: Blues Rock Line 1968-1989
album: Krasnej dar
album: Vitr ve vlasech
album: 1999
album: Alias
album: Den Šťastného Koně
album: Tanec Při Svíčkách
album: L.P.'93
album: Cesta tam a zase zpátky
album: Noční Chodec
album: Ivan Hlas & Nahlas (+ bonusy)
album: Symphonic
album: Ahoj, Tvůj Petr Vzpomínka Na Petra Nováka (Live)
album: Hit Album Vánoční
album: Rockový maratón 1985/1986
album: Mámo, táto v komoře je krockodýl
album: Hanspaul City
album: Půjdem Spolu deštěm, blátem
album: Blázinec
track: Náhrobní Kámen - Live
track: Na kolena
track: Za Všechny Z Nás
track: Povídej - Live
track: Ty Se Mi Zdáš - Live
track: Možná
track: Na slame lezi
track: Přátelé
track: Az prelezem plot
track: Zizen
track: Bajecna leta pod psa
track: Ja se neumim smat
track: Krasnej dar
track: Treba jo
track: Evangelium
track: Poezie
track: Pod zrcadlem
track: Nadrazni blues
track: Pro Elisku

Život utíká
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duration ms: 171400
explicit: false
by artist: Josef Laufer
in album: Tichá píseň. Balady a písně
  type: MusicAlbum
  date published: 2020-03-06

Tichá píseň
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duration: PT4M59S
duration ms: 299160
explicit: false
by artist: Michal Penk
in album: Tichá píseň. Balady a písně
  type: MusicAlbum
  date published: 2020-03-06
isrc code: CZA549938916
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T07:47:41+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/4oemmwu2wa5ssYasT2haA8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4oemmwu2wa5ssYasT2haA8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xcccd289026f50a83f633794881a5bc174fd60b98453f3bedfcbcc2b11d727ffa. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4oemmwu2wa5ssYasT2haA8.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4oemmwu2wa5ssYasT2haA8.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0xcccd289026f50a83f633794881a5bc174fd60b98453f3bedfcbcc2b11d727ffa","isrc":"CZA549938916","name":"Tichá píseň","registered_at":"2026-06-21T07:47:41Z","spotify_id":"4oemmwu2wa5ssYasT2haA8","type":"track"}

Jen tak světem si plout
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duration: PT3M15S
duration ms: 195186
explicit: false
by artist: Leoš Petrů
in album: Tichá píseň. Balady a písně
  type: MusicAlbum
  date published: 2020-03-06

Balada
type: MusicRecording
duration: PT3M14S
duration ms: 194613
explicit: false
by artist: Hana Zagorová
by artist: Martin Chodur
in album: Tichá píseň. Balady a písně
  type: MusicAlbum
  date published: 2020-03-06

Všichni Dobří Andělé
type: MusicAlbum
date published: 2014-10-15
track: Všichni Dobří Andělé
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  duration: PT3M17S
  duration ms: 197258
  explicit: false
  by artist: Janek Ledecky
  by artist: Ivana Chylkova
  in album: Všichni Dobří Andělé
    type: MusicAlbum
    date published: 2014-10-15
  isrc code: CZH681400043
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-23T21:02:49+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x46cffdc7b6d9c58a4aac204b166674d671a98617523c64913ba5c70dcbc8544c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956312
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956312
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/4w9IzZdEdLKsNYVIexkoYY.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4w9IzZdEdLKsNYVIexkoYY
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T05:09:12Z
  additional property: OTSCanonicalRecord
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    value: {"copyright_id":"0x46cffdc7b6d9c58a4aac204b166674d671a98617523c64913ba5c70dcbc8544c","isrc":"CZH681400043","name":"Všichni Dobří Andělé","registered_at":"2026-06-23T21:02:49Z","spotify_id":"4w9IzZdEdLKsNYVIexkoYY","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x46cffdc7b6d9c58a4aac204b166674d671a98617523c64913ba5c70dcbc8544c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4w9IzZdEdLKsNYVIexkoYY.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4w9IzZdEdLKsNYVIexkoYY.
    date published: 2026-07-02T05:09:12Z
    text: {"copyright_id":"0x46cffdc7b6d9c58a4aac204b166674d671a98617523c64913ba5c70dcbc8544c","isrc":"CZH681400043","name":"Všichni Dobří Andělé","registered_at":"2026-06-23T21:02:49Z","spotify_id":"4w9IzZdEdLKsNYVIexkoYY","type":"track"}
track: Láska Jenom Láska
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  duration: PT2M50S
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  by artist: Janek Ledecky
  by artist: Marta Jandová
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    type: MusicAlbum
    date published: 2014-10-15
  isrc code: CZH681400044
track: Nikdy To Nevzdám
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  duration: PT3M51S
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  by artist: Janek Ledecky
  by artist: Petr Muk
  by artist: Bohous Josef
  by artist: Petr Kolář
  in album: Všichni Dobří Andělé
    type: MusicAlbum
    date published: 2014-10-15
  isrc code: CZH681400045
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-24T18:39:26+00:00
  additional property: CopyrightChainExplorerURL
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    value: https://explorer.copyrightchains.com/tx/0xa243d2c9bdfaf967e0508ec564d860037225afcf25f0dbda5735acf52c2c65bc
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956312
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/1nbcccpWLWYRHAl9lpoGUQ.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1nbcccpWLWYRHAl9lpoGUQ
  additional property: OTSTimestamp
    type: PropertyValue
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  additional property: OTSCanonicalRecord
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    value: {"copyright_id":"0xa243d2c9bdfaf967e0508ec564d860037225afcf25f0dbda5735acf52c2c65bc","isrc":"CZH681400045","name":"Nikdy To Nevzdám","registered_at":"2026-06-24T18:39:26Z","spotify_id":"1nbcccpWLWYRHAl9lpoGUQ","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xa243d2c9bdfaf967e0508ec564d860037225afcf25f0dbda5735acf52c2c65bc. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1nbcccpWLWYRHAl9lpoGUQ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1nbcccpWLWYRHAl9lpoGUQ.
    date published: 2026-07-02T05:09:12Z
    text: {"copyright_id":"0xa243d2c9bdfaf967e0508ec564d860037225afcf25f0dbda5735acf52c2c65bc","isrc":"CZH681400045","name":"Nikdy To Nevzdám","registered_at":"2026-06-24T18:39:26Z","spotify_id":"1nbcccpWLWYRHAl9lpoGUQ","type":"track"}
track: Někdy Je Smích Někdy Je Pláč
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  duration: PT3M48S
  duration ms: 228410
  explicit: false
  by artist: Janek Ledecky
  by artist: Peter Nagy
  in album: Všichni Dobří Andělé
    type: MusicAlbum
    date published: 2014-10-15
  isrc code: CZH681400046
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-21T07:49:58+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
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  additional property: OTSHash
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    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956304
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/4SItYg0kdiC1hhWljGR5tU.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4SItYg0kdiC1hhWljGR5tU
  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. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x74b931927c31f9c58e70ef7926a9b787a0b777c134eee6b3e21df0405b78f7ba. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4SItYg0kdiC1hhWljGR5tU.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4SItYg0kdiC1hhWljGR5tU.
    date published: 2026-07-02T03:55:08Z
    text: {"copyright_id":"0x74b931927c31f9c58e70ef7926a9b787a0b777c134eee6b3e21df0405b78f7ba","isrc":"CZH681400046","name":"Někdy Je Smích Někdy Je Pláč","registered_at":"2026-06-21T07:49:58Z","spotify_id":"4SItYg0kdiC1hhWljGR5tU","type":"track"}
track: Neztrácej Čas
  type: MusicRecording
  duration: PT3M21S
  duration ms: 201932
  explicit: false
  by artist: Janek Ledecky
  by artist: Sabina Laurinova
  in album: Všichni Dobří Andělé
    type: MusicAlbum
    date published: 2014-10-15
  isrc code: CZH681400047
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-18T19:21:52+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x302e7b4ebdeb4452dfe21612825534d86101f9c48e94dc9cc460a6c5fe432708
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956304
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/1FtIzo3HgaFVrXhTvFSi5u.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1FtIzo3HgaFVrXhTvFSi5u
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x302e7b4ebdeb4452dfe21612825534d86101f9c48e94dc9cc460a6c5fe432708","isrc":"CZH681400047","name":"Neztrácej Čas","registered_at":"2026-06-18T19:21:52Z","spotify_id":"1FtIzo3HgaFVrXhTvFSi5u","type":"track"}
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
track: Za Všechny Z Nás
track: Hvězdy V Očích
track: Dánsko Je Past
track: Aj Tak Sme Frajeri
track: Někde Na Pokraji Nebe
track: Ve Jménu Lásky
track: Celej Život Kopu Hrob

OTSVerifyInstructions
type: PropertyValue
value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x302e7b4ebdeb4452dfe21612825534d86101f9c48e94dc9cc460a6c5fe432708. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1FtIzo3HgaFVrXhTvFSi5u.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1FtIzo3HgaFVrXhTvFSi5u.
date published: 2026-07-02T03:55:08Z
text: {"copyright_id":"0x302e7b4ebdeb4452dfe21612825534d86101f9c48e94dc9cc460a6c5fe432708","isrc":"CZH681400047","name":"Neztrácej Čas","registered_at":"2026-06-18T19:21:52Z","spotify_id":"1FtIzo3HgaFVrXhTvFSi5u","type":"track"}

Za Všechny Z Nás
type: MusicRecording
duration: PT4M38S
duration ms: 278434
explicit: false
by artist: Janek Ledecky
by artist: Ivan Hlas
by artist: Jan Kalousek
in album: Všichni Dobří Andělé
  type: MusicAlbum
  date published: 2014-10-15
isrc code: CZH681400048

Hvězdy V Očích
type: MusicRecording
duration: PT4M6S
duration ms: 246360
explicit: false
by artist: Janek Ledecky
by artist: Dasha
in album: Všichni Dobří Andělé
  type: MusicAlbum
  date published: 2014-10-15
isrc code: CZH681400049

Dánsko Je Past
type: MusicRecording
duration: PT3M15S
duration ms: 195559
explicit: false
by artist: Janek Ledecky
by artist: Petr Kolář
in album: Všichni Dobří Andělé
  type: MusicAlbum
  date published: 2014-10-15
isrc code: CZH681400050

Aj Tak Sme Frajeri
type: MusicRecording
duration: PT3M27S
duration ms: 207381
explicit: false
by artist: Janek Ledecky
in album: Všichni Dobří Andělé
  type: MusicAlbum
  date published: 2014-10-15
isrc code: CZH681400051
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T13:36:17+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf6a22393799edb1d119781ab1d9c40e0fc3bab547ea7c3525d237a1b2c299fd3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0GZJeZ1QTTRZCM250vv22O.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0GZJeZ1QTTRZCM250vv22O
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf6a22393799edb1d119781ab1d9c40e0fc3bab547ea7c3525d237a1b2c299fd3","isrc":"CZH681400051","name":"Aj Tak Sme Frajeri","registered_at":"2026-06-05T13:36:17Z","spotify_id":"0GZJeZ1QTTRZCM250vv22O","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xf6a22393799edb1d119781ab1d9c40e0fc3bab547ea7c3525d237a1b2c299fd3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0GZJeZ1QTTRZCM250vv22O.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0GZJeZ1QTTRZCM250vv22O.
  date published: 2026-06-13T17:25:41Z
  text: {"copyright_id":"0xf6a22393799edb1d119781ab1d9c40e0fc3bab547ea7c3525d237a1b2c299fd3","isrc":"CZH681400051","name":"Aj Tak Sme Frajeri","registered_at":"2026-06-05T13:36:17Z","spotify_id":"0GZJeZ1QTTRZCM250vv22O","type":"track"}

Někde Na Pokraji Nebe
type: MusicRecording
duration: PT3M27S
duration ms: 207264
explicit: false
by artist: Janek Ledecky
by artist: Marek Ztracený
in album: Všichni Dobří Andělé
  type: MusicAlbum
  date published: 2014-10-15
isrc code: CZH681400052
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T20:07:17+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbcfbe2fa52f43d1e163b9dc11398cd663719b6930ea8773cc7ea9e043f27e3be
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0kYjLoL0CZzbiZ1AwOALyd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0kYjLoL0CZzbiZ1AwOALyd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbcfbe2fa52f43d1e163b9dc11398cd663719b6930ea8773cc7ea9e043f27e3be","isrc":"CZH681400052","name":"Někde Na Pokraji Nebe","registered_at":"2026-06-10T20:07:17Z","spotify_id":"0kYjLoL0CZzbiZ1AwOALyd","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xbcfbe2fa52f43d1e163b9dc11398cd663719b6930ea8773cc7ea9e043f27e3be. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0kYjLoL0CZzbiZ1AwOALyd.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0kYjLoL0CZzbiZ1AwOALyd.
  date published: 2026-06-13T17:25:41Z
  text: {"copyright_id":"0xbcfbe2fa52f43d1e163b9dc11398cd663719b6930ea8773cc7ea9e043f27e3be","isrc":"CZH681400052","name":"Někde Na Pokraji Nebe","registered_at":"2026-06-10T20:07:17Z","spotify_id":"0kYjLoL0CZzbiZ1AwOALyd","type":"track"}

Ve Jménu Lásky
type: MusicRecording
duration: PT3M11S
duration ms: 191009
explicit: false
by artist: Janek Ledecky
by artist: Lucie Vondráčková
in album: Všichni Dobří Andělé
  type: MusicAlbum
  date published: 2014-10-15
isrc code: CZH681400053
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T18:39:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdfe9d8436d6d70ef1623bb6d407a07b0957a3e01f7c705620185bbb9b6e96e23
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956312
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/36jZ0dvYsqxCnpWaWtauGo.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/36jZ0dvYsqxCnpWaWtauGo
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdfe9d8436d6d70ef1623bb6d407a07b0957a3e01f7c705620185bbb9b6e96e23","isrc":"CZH681400053","name":"Ve Jménu Lásky","registered_at":"2026-06-24T18:39:12Z","spotify_id":"36jZ0dvYsqxCnpWaWtauGo","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xdfe9d8436d6d70ef1623bb6d407a07b0957a3e01f7c705620185bbb9b6e96e23. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/36jZ0dvYsqxCnpWaWtauGo.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/36jZ0dvYsqxCnpWaWtauGo.
  date published: 2026-07-02T05:09:12Z
  text: {"copyright_id":"0xdfe9d8436d6d70ef1623bb6d407a07b0957a3e01f7c705620185bbb9b6e96e23","isrc":"CZH681400053","name":"Ve Jménu Lásky","registered_at":"2026-06-24T18:39:12Z","spotify_id":"36jZ0dvYsqxCnpWaWtauGo","type":"track"}

Celej Život Kopu Hrob
type: MusicRecording
duration: PT3M26S
duration ms: 206903
explicit: false
by artist: Janek Ledecky
by artist: Richard Tesařík
in album: Všichni Dobří Andělé
  type: MusicAlbum
  date published: 2014-10-15
isrc code: CZH681400054

Nejzpívanější české písničky
type: MusicAlbum
date published: 2019-09-06
track: Slavíci z madridu
  type: MusicRecording
  duration: PT3M41S
  duration ms: 221000
  explicit: false
  by artist: Waldemar Matuška
  in album: Nejzpívanější české písničky
    type: MusicAlbum
    date published: 2019-09-06
  isrc code: CZA166800122
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-19T15:22:44+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x68eb4dc5fdb9eb3473d13c18ea589eb36f2caa47a91a42b79d9e73bc43e12771
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956304
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/2wdEdXkWaXVAFDnNMRrk0t.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2wdEdXkWaXVAFDnNMRrk0t
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x68eb4dc5fdb9eb3473d13c18ea589eb36f2caa47a91a42b79d9e73bc43e12771","isrc":"CZA166800122","name":"Slavíci z madridu","registered_at":"2026-06-19T15:22:44Z","spotify_id":"2wdEdXkWaXVAFDnNMRrk0t","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x68eb4dc5fdb9eb3473d13c18ea589eb36f2caa47a91a42b79d9e73bc43e12771. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2wdEdXkWaXVAFDnNMRrk0t.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2wdEdXkWaXVAFDnNMRrk0t.
    date published: 2026-07-02T03:55:08Z
    text: {"copyright_id":"0x68eb4dc5fdb9eb3473d13c18ea589eb36f2caa47a91a42b79d9e73bc43e12771","isrc":"CZA166800122","name":"Slavíci z madridu","registered_at":"2026-06-19T15:22:44Z","spotify_id":"2wdEdXkWaXVAFDnNMRrk0t","type":"track"}
track: Valčíček
  type: MusicRecording
  duration: PT2M7S
  duration ms: 127000
  explicit: false
  by artist: Frantisek Nedved
  by artist: Zdenka Tichotová
  by artist: Brontosauri
  in album: Nejzpívanější české písničky
    type: MusicAlbum
    date published: 2019-09-06
  isrc code: CZA100110024
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-08T22:08:54+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xaf8e163551663050cd37b1dddcf2115045bd905f777b8bf0449d05b3832a4164
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953528
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953528
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/5zbvGfTPNhXtmf4g0lPLMG.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5zbvGfTPNhXtmf4g0lPLMG
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T15:41:10Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0xaf8e163551663050cd37b1dddcf2115045bd905f777b8bf0449d05b3832a4164","isrc":"CZA100110024","name":"Valčíček","registered_at":"2026-06-08T22:08:54Z","spotify_id":"5zbvGfTPNhXtmf4g0lPLMG","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xaf8e163551663050cd37b1dddcf2115045bd905f777b8bf0449d05b3832a4164. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5zbvGfTPNhXtmf4g0lPLMG.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5zbvGfTPNhXtmf4g0lPLMG.
    date published: 2026-06-13T15:41:10Z
    text: {"copyright_id":"0xaf8e163551663050cd37b1dddcf2115045bd905f777b8bf0449d05b3832a4164","isrc":"CZA100110024","name":"Valčíček","registered_at":"2026-06-08T22:08:54Z","spotify_id":"5zbvGfTPNhXtmf4g0lPLMG","type":"track"}
track: Červená řeka
  type: MusicRecording
  duration: PT4M58S
  duration ms: 298000
  explicit: false
  by artist: Helena Vondráčková
  in album: Nejzpívanější české písničky
    type: MusicAlbum
    date published: 2019-09-06
  isrc code: CZA166400156
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-07T21:25:54+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0ed0c12d322d4ecab13166597e4a6d3b77d2cbe40e467aaabfd73bddaead7230
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956349
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956349
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/1CCopbWjQW3e8J5k0iXUj6.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1CCopbWjQW3e8J5k0iXUj6
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T11:34:59Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x0ed0c12d322d4ecab13166597e4a6d3b77d2cbe40e467aaabfd73bddaead7230","isrc":"CZA166400156","name":"Červená řeka","registered_at":"2026-06-07T21:25:54Z","spotify_id":"1CCopbWjQW3e8J5k0iXUj6","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x0ed0c12d322d4ecab13166597e4a6d3b77d2cbe40e467aaabfd73bddaead7230. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1CCopbWjQW3e8J5k0iXUj6.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1CCopbWjQW3e8J5k0iXUj6.
    date published: 2026-07-02T11:34:59Z
    text: {"copyright_id":"0x0ed0c12d322d4ecab13166597e4a6d3b77d2cbe40e467aaabfd73bddaead7230","isrc":"CZA166400156","name":"Červená řeka","registered_at":"2026-06-07T21:25:54Z","spotify_id":"1CCopbWjQW3e8J5k0iXUj6","type":"track"}
track: Na kolena
  type: MusicRecording
  duration: PT2M42S
  duration ms: 162000
  explicit: false
  by artist: Ivan Hlas
  in album: Nejzpívanější české písničky
    type: MusicAlbum
    date published: 2019-09-06
  isrc code: CZA100201055
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-08T04:57:04+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x1d04f44d2696517746361b692066ac09e7bead024aaa6283f5fe4989bc31a348
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953528
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953528
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/7BxknqC3qLOIlwXUYMwfaM.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7BxknqC3qLOIlwXUYMwfaM
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T15:41:10Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x1d04f44d2696517746361b692066ac09e7bead024aaa6283f5fe4989bc31a348","isrc":"CZA100201055","name":"Na kolena","registered_at":"2026-06-08T04:57:04Z","spotify_id":"7BxknqC3qLOIlwXUYMwfaM","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x1d04f44d2696517746361b692066ac09e7bead024aaa6283f5fe4989bc31a348. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7BxknqC3qLOIlwXUYMwfaM.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7BxknqC3qLOIlwXUYMwfaM.
    date published: 2026-06-13T15:41:10Z
    text: {"copyright_id":"0x1d04f44d2696517746361b692066ac09e7bead024aaa6283f5fe4989bc31a348","isrc":"CZA100201055","name":"Na kolena","registered_at":"2026-06-08T04:57:04Z","spotify_id":"7BxknqC3qLOIlwXUYMwfaM","type":"track"}
track: Poslední kovboj
  type: MusicRecording
  duration: PT3M21S
  duration ms: 201000
  explicit: false
  by artist: Michal Tučný
  in album: Nejzpívanější české písničky
  isrc code: CZA168000070
  additional property: CopyrightID
  additional property: CopyrightStatus
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSRecordURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
track: Snad jsem to zavinil já
track: Holubí Dům
track: Marnivá sestřenice
track: Není nutno
track: Tu kytaru jsem koupil kvůli tobě
track: Tereza
track: Hádej, matyldo
track: Stánky
track: Dej mi víc své lásky
track: Bedna vod whisky
track: Rosa na kolejích
track: Bláznova ukolébavka
track: Milenci V texaskách
track: Život je jen náhoda
track: Česká písnička (ta naše písnička česká)
track: Růže z texasu
track: Pramínek vlasů
track: Blues folsomské věznice
track: Matylda
track: Řekni, kde ty kytky jsou
track: Povídej
track: Rozvíjej se, poupátko
track: Jasná zpráva
track: Honky tonky blues
track: Píseň, co mě učil listopad
track: Popelky
track: Niagara
track: Whisky, to je moje gusto
track: Otázky
track: Veď mě dál, cesto má
track: Tom dooley
track: Jednou mi fotr povídá
track: Podvod
track: Ze všech chlapů nejšťastnější chlap
track: Bon soir, mademoiselle Paris

Michal Tučný
type: MusicGroup

Nejzpívanější české písničky
type: MusicAlbum
date published: 2019-09-06

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-06-07T04:03:15+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x73c25f27db3e064fb28163b9c9b29a5f8145c36eb10edee38854c52a8e0edcb9

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 956304

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block/956304

OTSRecordURL
type: PropertyValue
value: https://artists.proofprofile.net/proofs/track/1YkNrMld5pq7eSwXsM60DS.json

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1YkNrMld5pq7eSwXsM60DS

OTSTimestamp
type: PropertyValue
value: 2026-07-02T03:55:08Z

OTSCanonicalRecord
type: PropertyValue
value: {"copyright_id":"0x73c25f27db3e064fb28163b9c9b29a5f8145c36eb10edee38854c52a8e0edcb9","isrc":"CZA168000070","name":"Poslední kovboj","registered_at":"2026-06-07T04:03:15Z","spotify_id":"1YkNrMld5pq7eSwXsM60DS","type":"track"}

OTSVerifyInstructions
type: PropertyValue
value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73c25f27db3e064fb28163b9c9b29a5f8145c36eb10edee38854c52a8e0edcb9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1YkNrMld5pq7eSwXsM60DS.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1YkNrMld5pq7eSwXsM60DS.
date published: 2026-07-02T03:55:08Z
text: {"copyright_id":"0x73c25f27db3e064fb28163b9c9b29a5f8145c36eb10edee38854c52a8e0edcb9","isrc":"CZA168000070","name":"Poslední kovboj","registered_at":"2026-06-07T04:03:15Z","spotify_id":"1YkNrMld5pq7eSwXsM60DS","type":"track"}

Snad jsem to zavinil já
type: MusicRecording
duration: PT3M5S
duration ms: 185000
explicit: false
by artist: Olympic
in album: Nejzpívanější české písničky
  type: MusicAlbum
  date published: 2019-09-06
isrc code: CZA166700047
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T18:43:22+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x13a37c4d4c3dc6b88f58048f0550a9599f587527e084c91d82cfd9172264e5f6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956312
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/5DwezUOiaM4MhyzHnnYs1p.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5DwezUOiaM4MhyzHnnYs1p
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x13a37c4d4c3dc6b88f58048f0550a9599f587527e084c91d82cfd9172264e5f6","isrc":"CZA166700047","name":"Snad jsem to zavinil já","registered_at":"2026-06-24T18:43:22Z","spotify_id":"5DwezUOiaM4MhyzHnnYs1p","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x13a37c4d4c3dc6b88f58048f0550a9599f587527e084c91d82cfd9172264e5f6. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5DwezUOiaM4MhyzHnnYs1p.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5DwezUOiaM4MhyzHnnYs1p.
  date published: 2026-07-02T05:09:12Z
  text: {"copyright_id":"0x13a37c4d4c3dc6b88f58048f0550a9599f587527e084c91d82cfd9172264e5f6","isrc":"CZA166700047","name":"Snad jsem to zavinil já","registered_at":"2026-06-24T18:43:22Z","spotify_id":"5DwezUOiaM4MhyzHnnYs1p","type":"track"}

Holubí Dům
type: MusicRecording
duration: PT3M59S
duration ms: 239000
explicit: false
by artist: Jiří Schelinger
in album: Nejzpívanější české písničky
  type: MusicAlbum
  date published: 2019-09-06
isrc code: CZA161003699
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T14:37:28+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x93c396e4e426aa1da4f644b39234ed94c53737ea619f243cdb4be4fb5718c997
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956312
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6eE8fSuxrQEcsGG3n0w66i.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6eE8fSuxrQEcsGG3n0w66i
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x93c396e4e426aa1da4f644b39234ed94c53737ea619f243cdb4be4fb5718c997","isrc":"CZA161003699","name":"Holubí Dům","registered_at":"2026-06-23T14:37:28Z","spotify_id":"6eE8fSuxrQEcsGG3n0w66i","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x93c396e4e426aa1da4f644b39234ed94c53737ea619f243cdb4be4fb5718c997. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6eE8fSuxrQEcsGG3n0w66i.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6eE8fSuxrQEcsGG3n0w66i.
  date published: 2026-07-02T05:09:12Z
  text: {"copyright_id":"0x93c396e4e426aa1da4f644b39234ed94c53737ea619f243cdb4be4fb5718c997","isrc":"CZA161003699","name":"Holubí Dům","registered_at":"2026-06-23T14:37:28Z","spotify_id":"6eE8fSuxrQEcsGG3n0w66i","type":"track"}

Marnivá sestřenice
type: MusicRecording
duration: PT3M23S
duration ms: 203000
explicit: false
by artist: Jiří Suchý
in album: Nejzpívanější české písničky
  type: MusicAlbum
  date published: 2019-09-06
isrc code: CZA166100006
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T22:02:42+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbe6658c16d87b426046a58f9e6121290ebea3a86bda7f9b986e0c68fa0fb5860
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956891
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956891
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2TsbLDO4bIMKUfI5jJ7dea.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2TsbLDO4bIMKUfI5jJ7dea
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T07:16:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbe6658c16d87b426046a58f9e6121290ebea3a86bda7f9b986e0c68fa0fb5860","isrc":"CZA166100006","name":"Marnivá sestřenice","registered_at":"2026-06-08T22:02:42Z","spotify_id":"2TsbLDO4bIMKUfI5jJ7dea","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xbe6658c16d87b426046a58f9e6121290ebea3a86bda7f9b986e0c68fa0fb5860. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2TsbLDO4bIMKUfI5jJ7dea.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2TsbLDO4bIMKUfI5jJ7dea.
  date published: 2026-07-06T07:16:32Z
  text: {"copyright_id":"0xbe6658c16d87b426046a58f9e6121290ebea3a86bda7f9b986e0c68fa0fb5860","isrc":"CZA166100006","name":"Marnivá sestřenice","registered_at":"2026-06-08T22:02:42Z","spotify_id":"2TsbLDO4bIMKUfI5jJ7dea","type":"track"}

Není nutno
type: MusicRecording
duration: PT1M12S
duration ms: 72000
explicit: false
by artist: Jaroslav Uhlíř
in album: Nejzpívanější české písničky
  type: MusicAlbum
  date published: 2019-09-06
isrc code: CZA161602562
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T20:42:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3706e5e95463a37e0bf85cc13232fece9cdb043709ce938f2e3e1af7efabda32
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956351
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956351
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/17qf24AZMgtgoFpxW1o9YA.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/17qf24AZMgtgoFpxW1o9YA
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T11:38:34Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3706e5e95463a37e0bf85cc13232fece9cdb043709ce938f2e3e1af7efabda32","isrc":"CZA161602562","name":"Není nutno","registered_at":"2026-06-06T20:42:20Z","spotify_id":"17qf24AZMgtgoFpxW1o9YA","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x3706e5e95463a37e0bf85cc13232fece9cdb043709ce938f2e3e1af7efabda32. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/17qf24AZMgtgoFpxW1o9YA.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/17qf24AZMgtgoFpxW1o9YA.
  date published: 2026-07-02T11:38:34Z
  text: {"copyright_id":"0x3706e5e95463a37e0bf85cc13232fece9cdb043709ce938f2e3e1af7efabda32","isrc":"CZA161602562","name":"Není nutno","registered_at":"2026-06-06T20:42:20Z","spotify_id":"17qf24AZMgtgoFpxW1o9YA","type":"track"}

Tu kytaru jsem koupil kvůli tobě
type: MusicRecording
duration: PT3M30S
duration ms: 210000
explicit: false
by artist: Václav Neckář
in album: Nejzpívanější české písničky
  type: MusicAlbum
  date published: 2019-09-06
isrc code: CZA166500061
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T10:32:26+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5426f5685000978011183cf17dcf105751192f5a628fbfe3fddcd2bf32428286
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956349
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956349
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6FfHg0u6PZv1BuWxllQEaf.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6FfHg0u6PZv1BuWxllQEaf
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T11:34:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5426f5685000978011183cf17dcf105751192f5a628fbfe3fddcd2bf32428286","isrc":"CZA166500061","name":"Tu kytaru jsem koupil kvůli tobě","registered_at":"2026-06-04T10:32:26Z","spotify_id":"6FfHg0u6PZv1BuWxllQEaf","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x5426f5685000978011183cf17dcf105751192f5a628fbfe3fddcd2bf32428286. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6FfHg0u6PZv1BuWxllQEaf.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6FfHg0u6PZv1BuWxllQEaf.
  date published: 2026-07-02T11:34:59Z
  text: {"copyright_id":"0x5426f5685000978011183cf17dcf105751192f5a628fbfe3fddcd2bf32428286","isrc":"CZA166500061","name":"Tu kytaru jsem koupil kvůli tobě","registered_at":"2026-06-04T10:32:26Z","spotify_id":"6FfHg0u6PZv1BuWxllQEaf","type":"track"}

Tereza
type: MusicRecording
duration: PT2M27S
duration ms: 147000
explicit: false
by artist: Waldemar Matuška
in album: Nejzpívanější české písničky
  type: MusicAlbum
  date published: 2019-09-06
isrc code: CZA161100698
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T15:16:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa0f614371663b9dfa5f966506e335b5ef7f4f1e13549e2fdce02c2ff02c39d7e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956312
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/3ufukcgyhC4SB3jZvRvdUY.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3ufukcgyhC4SB3jZvRvdUY
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xa0f614371663b9dfa5f966506e335b5ef7f4f1e13549e2fdce02c2ff02c39d7e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3ufukcgyhC4SB3jZvRvdUY.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3ufukcgyhC4SB3jZvRvdUY.
  date published: 2026-07-02T05:09:12Z

Hádej, matyldo
type: MusicRecording
duration: PT2M49S
duration ms: 169000
explicit: false
by artist: Karel Hála
in album: Nejzpívanější české písničky
  type: MusicAlbum
  date published: 2019-09-06
isrc code: CZA168000094

Stánky
type: MusicRecording
duration: PT2M15S
duration ms: 135000
explicit: false
by artist: Frantisek Nedved
by artist: Brontosauri
in album: Nejzpívanější české písničky
  type: MusicAlbum
  date published: 2019-09-06
isrc code: CZA100110039
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T08:35:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1aadfbf937325ad3620b6255b14065572d74326542a10b8ac61f3939268968ab
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1opXDRYXQvrsin5PMNpBbm.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1opXDRYXQvrsin5PMNpBbm
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1aadfbf937325ad3620b6255b14065572d74326542a10b8ac61f3939268968ab","isrc":"CZA100110039","name":"Stánky","registered_at":"2026-06-07T08:35:52Z","spotify_id":"1opXDRYXQvrsin5PMNpBbm","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x1aadfbf937325ad3620b6255b14065572d74326542a10b8ac61f3939268968ab. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1opXDRYXQvrsin5PMNpBbm.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1opXDRYXQvrsin5PMNpBbm.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0x1aadfbf937325ad3620b6255b14065572d74326542a10b8ac61f3939268968ab","isrc":"CZA100110039","name":"Stánky","registered_at":"2026-06-07T08:35:52Z","spotify_id":"1opXDRYXQvrsin5PMNpBbm","type":"track"}

Dej mi víc své lásky
type: MusicRecording
duration: PT2M55S
duration ms: 175000
explicit: false
by artist: Olympic
in album: Nejzpívanější české písničky
  type: MusicAlbum
  date published: 2019-09-06
isrc code: CZA166500209
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T18:42:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5bc601f5cf3074fca6b12e1d1a9074bc9e8703d1e96f81f24e2aae06bc5077d1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956312
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/5kshoBIscGWWWEKGfH9yYz.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5kshoBIscGWWWEKGfH9yYz
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5bc601f5cf3074fca6b12e1d1a9074bc9e8703d1e96f81f24e2aae06bc5077d1","isrc":"CZA166500209","name":"Dej mi víc své lásky","registered_at":"2026-06-24T18:42:49Z","spotify_id":"5kshoBIscGWWWEKGfH9yYz","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x5bc601f5cf3074fca6b12e1d1a9074bc9e8703d1e96f81f24e2aae06bc5077d1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5kshoBIscGWWWEKGfH9yYz.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5kshoBIscGWWWEKGfH9yYz.
  date published: 2026-07-02T05:09:12Z
  text: {"copyright_id":"0x5bc601f5cf3074fca6b12e1d1a9074bc9e8703d1e96f81f24e2aae06bc5077d1","isrc":"CZA166500209","name":"Dej mi víc své lásky","registered_at":"2026-06-24T18:42:49Z","spotify_id":"5kshoBIscGWWWEKGfH9yYz","type":"track"}

Bedna vod whisky
type: MusicRecording
duration: PT3M12S
duration ms: 192000
explicit: false
by artist: Mirko Ryvola
by artist: Nezmari
by artist: a přátelé
in album: Nejzpívanější české písničky
  type: MusicAlbum
  date published: 2019-09-06
isrc code: CZA169000003
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T10:15:53+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6b6df60a9ef5f9a7203933a00a4791c158f3c1e8de1dfb0d979ef937367b7f6a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956302
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/62215LXlNPM4pH74dXZnMh.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/62215LXlNPM4pH74dXZnMh
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6b6df60a9ef5f9a7203933a00a4791c158f3c1e8de1dfb0d979ef937367b7f6a","isrc":"CZA169000003","name":"Bedna vod whisky","registered_at":"2026-06-20T10:15:53Z","spotify_id":"62215LXlNPM4pH74dXZnMh","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x6b6df60a9ef5f9a7203933a00a4791c158f3c1e8de1dfb0d979ef937367b7f6a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/62215LXlNPM4pH74dXZnMh.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/62215LXlNPM4pH74dXZnMh.
  date published: 2026-07-02T03:30:09Z
  text: {"copyright_id":"0x6b6df60a9ef5f9a7203933a00a4791c158f3c1e8de1dfb0d979ef937367b7f6a","isrc":"CZA169000003","name":"Bedna vod whisky","registered_at":"2026-06-20T10:15:53Z","spotify_id":"62215LXlNPM4pH74dXZnMh","type":"track"}

Rosa na kolejích
type: MusicRecording
duration: PT2M40S
duration ms: 160000
explicit: false
by artist: Wabi Danek
in album: Nejzpívanější české písničky
  type: MusicAlbum
  date published: 2019-09-06
isrc code: CZA167500007
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T20:40:59+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5964e3d60196fc1933c1fd528ef6c1be494086825b3c5208437c126f8a063ebf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6CDkJ23w27aiiRogNnUkzr.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6CDkJ23w27aiiRogNnUkzr
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5964e3d60196fc1933c1fd528ef6c1be494086825b3c5208437c126f8a063ebf","isrc":"CZA167500007","name":"Rosa na kolejích","registered_at":"2026-06-24T20:40:59Z","spotify_id":"6CDkJ23w27aiiRogNnUkzr","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x5964e3d60196fc1933c1fd528ef6c1be494086825b3c5208437c126f8a063ebf. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6CDkJ23w27aiiRogNnUkzr.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6CDkJ23w27aiiRogNnUkzr.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x5964e3d60196fc1933c1fd528ef6c1be494086825b3c5208437c126f8a063ebf","isrc":"CZA167500007","name":"Rosa na kolejích","registered_at":"2026-06-24T20:40:59Z","spotify_id":"6CDkJ23w27aiiRogNnUkzr","type":"track"}

Bláznova ukolébavka
type: MusicRecording
duration: PT3M4S
duration ms: 184000
explicit: false
by artist: Pavel Dydovič
in album: Nejzpívanější české písničky
  type: MusicAlbum
  date published: 2019-09-06
isrc code: CZA167000039
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T14:50:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x873ed8bdfe1ce8545a5d525e350c839678b1a93151349e42503efe62ef806932
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1ZZsJFLBGhBB0Rkc3WNL8D.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1ZZsJFLBGhBB0Rkc3WNL8D
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x873ed8bdfe1ce8545a5d525e350c839678b1a93151349e42503efe62ef806932","isrc":"CZA167000039","name":"Bláznova ukolébavka","registered_at":"2026-06-07T14:50:49Z","spotify_id":"1ZZsJFLBGhBB0Rkc3WNL8D","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x873ed8bdfe1ce8545a5d525e350c839678b1a93151349e42503efe62ef806932. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1ZZsJFLBGhBB0Rkc3WNL8D.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1ZZsJFLBGhBB0Rkc3WNL8D.
  date published: 2026-06-13T17:25:41Z
  text: {"copyright_id":"0x873ed8bdfe1ce8545a5d525e350c839678b1a93151349e42503efe62ef806932","isrc":"CZA167000039","name":"Bláznova ukolébavka","registered_at":"2026-06-07T14:50:49Z","spotify_id":"1ZZsJFLBGhBB0Rkc3WNL8D","type":"track"}

Milenci V texaskách
type: MusicRecording
duration: PT2M37S
duration ms: 157000
explicit: false
by artist: Karel Štědrý
by artist: Josef Zíma
in album: Nejzpívanější české písničky
  type: MusicAlbum
  date published: 2019-09-06
isrc code: CZA166500151
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T02:17:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xef5ba0a0e18205bd3162bf406f7dad3196ca4052e5c6ca01378c12f145236519
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956312
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0HVfuzAUeglcZ3fXbE32qH.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0HVfuzAUeglcZ3fXbE32qH
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xef5ba0a0e18205bd3162bf406f7dad3196ca4052e5c6ca01378c12f145236519","isrc":"CZA166500151","name":"Milenci V texaskách","registered_at":"2026-06-07T02:17:24Z","spotify_id":"0HVfuzAUeglcZ3fXbE32qH","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xef5ba0a0e18205bd3162bf406f7dad3196ca4052e5c6ca01378c12f145236519. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0HVfuzAUeglcZ3fXbE32qH.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0HVfuzAUeglcZ3fXbE32qH.
  date published: 2026-07-02T05:09:12Z
  text: {"copyright_id":"0xef5ba0a0e18205bd3162bf406f7dad3196ca4052e5c6ca01378c12f145236519","isrc":"CZA166500151","name":"Milenci V texaskách","registered_at":"2026-06-07T02:17:24Z","spotify_id":"0HVfuzAUeglcZ3fXbE32qH","type":"track"}

Život je jen náhoda
type: MusicRecording
duration: PT3M13S
duration ms: 193000
explicit: false
by artist: Ljuba Hermanová
in album: Nejzpívanější české písničky
  type: MusicAlbum
  date published: 2019-09-06
isrc code: CZA168700337
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T10:17:46+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4b73323aa12396fa647aa9df84b208dfa39014003ae119200e5831189e2a0234
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956349
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956349
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6fPQtlqdL3Ex3cD5rN49l3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6fPQtlqdL3Ex3cD5rN49l3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T11:34:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4b73323aa12396fa647aa9df84b208dfa39014003ae119200e5831189e2a0234","isrc":"CZA168700337","name":"Život je jen náhoda","registered_at":"2026-06-25T10:17:46Z","spotify_id":"6fPQtlqdL3Ex3cD5rN49l3","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x4b73323aa12396fa647aa9df84b208dfa39014003ae119200e5831189e2a0234. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6fPQtlqdL3Ex3cD5rN49l3.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6fPQtlqdL3Ex3cD5rN49l3.
  date published: 2026-07-02T11:34:59Z
  text: {"copyright_id":"0x4b73323aa12396fa647aa9df84b208dfa39014003ae119200e5831189e2a0234","isrc":"CZA168700337","name":"Život je jen náhoda","registered_at":"2026-06-25T10:17:46Z","spotify_id":"6fPQtlqdL3Ex3cD5rN49l3","type":"track"}

Česká písnička (ta naše písnička česká)
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duration: PT3M27S
duration ms: 207000
explicit: false
by artist: Milan Chladil
in album: Nejzpívanější české písničky
  type: MusicAlbum
  date published: 2019-09-06
isrc code: CZA168000162
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-22T06:31:30+00:00

Růže z texasu
type: MusicRecording
duration: PT4M2S
duration ms: 242000
explicit: false
by artist: Waldemar Matuška
in album: Nejzpívanější české písničky
  type: MusicAlbum
  date published: 2019-09-06
isrc code: CZA166500078
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T14:51:13+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x16fbdd79a8f7f3115f5532fa1e18d684e019a4854affeba06cfd28e233151944
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956312
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2Fh540LMQaqvuyF6R5o97h.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2Fh540LMQaqvuyF6R5o97h
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x16fbdd79a8f7f3115f5532fa1e18d684e019a4854affeba06cfd28e233151944","isrc":"CZA166500078","name":"Růže z texasu","registered_at":"2026-06-07T14:51:13Z","spotify_id":"2Fh540LMQaqvuyF6R5o97h","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x16fbdd79a8f7f3115f5532fa1e18d684e019a4854affeba06cfd28e233151944. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2Fh540LMQaqvuyF6R5o97h.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2Fh540LMQaqvuyF6R5o97h.
  date published: 2026-07-02T05:09:12Z
  text: {"copyright_id":"0x16fbdd79a8f7f3115f5532fa1e18d684e019a4854affeba06cfd28e233151944","isrc":"CZA166500078","name":"Růže z texasu","registered_at":"2026-06-07T14:51:13Z","spotify_id":"2Fh540LMQaqvuyF6R5o97h","type":"track"}

Pramínek vlasů
type: MusicRecording
duration: PT3M41S
duration ms: 221000
explicit: false
by artist: Jiří Suchý
in album: Nejzpívanější české písničky
  type: MusicAlbum
  date published: 2019-09-06
isrc code: CZA166000002
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T21:26:22+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7e10a66f12c9db4e37a3a544a71bb34a6eca771bc968b60e05b6914f0dacb297
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/7cOMgJV9IxTYXSGAuaxI1C.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7cOMgJV9IxTYXSGAuaxI1C
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7e10a66f12c9db4e37a3a544a71bb34a6eca771bc968b60e05b6914f0dacb297","isrc":"CZA166000002","name":"Pramínek vlasů","registered_at":"2026-06-07T21:26:22Z","spotify_id":"7cOMgJV9IxTYXSGAuaxI1C","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x7e10a66f12c9db4e37a3a544a71bb34a6eca771bc968b60e05b6914f0dacb297. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7cOMgJV9IxTYXSGAuaxI1C.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7cOMgJV9IxTYXSGAuaxI1C.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x7e10a66f12c9db4e37a3a544a71bb34a6eca771bc968b60e05b6914f0dacb297","isrc":"CZA166000002","name":"Pramínek vlasů","registered_at":"2026-06-07T21:26:22Z","spotify_id":"7cOMgJV9IxTYXSGAuaxI1C","type":"track"}

Blues folsomské věznice
type: MusicRecording
duration: PT2M29S
duration ms: 149000
explicit: false
by artist: Michal Tučný
in album: Nejzpívanější české písničky
  type: MusicAlbum
  date published: 2019-09-06
isrc code: CZA167100442

Matylda
type: MusicRecording
duration: PT2M43S
duration ms: 163000
explicit: false
by artist: Milan Chladil
in album: Nejzpívanější české písničky
  type: MusicAlbum
  date published: 2019-09-06
isrc code: CZA166900020
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T04:12:55+00:00

Řekni, kde ty kytky jsou
type: MusicRecording
duration: PT3M47S
duration ms: 227000
explicit: false
by artist: Judita Cerovská
in album: Nejzpívanější české písničky
  type: MusicAlbum
  date published: 2019-09-06
isrc code: CZA166500065
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-27T10:51:39+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd7dc96812e973aec4e81f6d05bab9e4e33e4760f606d4d4dedf68b74be8b8b6e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1ovP4P7OJYU0wZRdLqYvyR.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1ovP4P7OJYU0wZRdLqYvyR
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd7dc96812e973aec4e81f6d05bab9e4e33e4760f606d4d4dedf68b74be8b8b6e","isrc":"CZA166500065","name":"Řekni, kde ty kytky jsou","registered_at":"2026-06-27T10:51:39Z","spotify_id":"1ovP4P7OJYU0wZRdLqYvyR","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xd7dc96812e973aec4e81f6d05bab9e4e33e4760f606d4d4dedf68b74be8b8b6e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1ovP4P7OJYU0wZRdLqYvyR.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1ovP4P7OJYU0wZRdLqYvyR.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0xd7dc96812e973aec4e81f6d05bab9e4e33e4760f606d4d4dedf68b74be8b8b6e","isrc":"CZA166500065","name":"Řekni, kde ty kytky jsou","registered_at":"2026-06-27T10:51:39Z","spotify_id":"1ovP4P7OJYU0wZRdLqYvyR","type":"track"}

Povídej
type: MusicRecording
duration: PT2M6S
duration ms: 126000
explicit: false
by artist: Petr Novak
in album: Nejzpívanější české písničky
  type: MusicAlbum
  date published: 2019-09-06
isrc code: CZA166700020

Rozvíjej se, poupátko
type: MusicRecording
duration: PT3M11S
duration ms: 191000
explicit: false
by artist: Iveta Bartošová
in album: Nejzpívanější české písničky
  type: MusicAlbum
  date published: 2019-09-06
isrc code: CZA168800148
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T07:54:29+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x783a9f48c8b26353f63dd6c2cae84690678d94e158b743c27bc1c08b65961885
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/957120
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/7FmsooeKH8rsCzyiuOKE2n.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7FmsooeKH8rsCzyiuOKE2n
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x783a9f48c8b26353f63dd6c2cae84690678d94e158b743c27bc1c08b65961885","isrc":"CZA168800148","name":"Rozvíjej se, poupátko","registered_at":"2026-06-09T07:54:29Z","spotify_id":"7FmsooeKH8rsCzyiuOKE2n","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x783a9f48c8b26353f63dd6c2cae84690678d94e158b743c27bc1c08b65961885. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7FmsooeKH8rsCzyiuOKE2n.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7FmsooeKH8rsCzyiuOKE2n.
  date published: 2026-07-08T03:22:41Z
  text: {"copyright_id":"0x783a9f48c8b26353f63dd6c2cae84690678d94e158b743c27bc1c08b65961885","isrc":"CZA168800148","name":"Rozvíjej se, poupátko","registered_at":"2026-06-09T07:54:29Z","spotify_id":"7FmsooeKH8rsCzyiuOKE2n","type":"track"}

Jasná zpráva
type: MusicRecording
duration: PT4M20S
duration ms: 260000
explicit: false
by artist: Olympic
in album: Nejzpívanější české písničky
  type: MusicAlbum
  date published: 2019-09-06
isrc code: CZA168100089
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-27T10:51:29+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x76ee38134347b577811931f5576e53711c8d53f98748db612ad2ce075bf3f57b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/3AyDR4RrbBMDVARGgLHH23.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3AyDR4RrbBMDVARGgLHH23
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x76ee38134347b577811931f5576e53711c8d53f98748db612ad2ce075bf3f57b","isrc":"CZA168100089","name":"Jasná zpráva","registered_at":"2026-06-27T10:51:29Z","spotify_id":"3AyDR4RrbBMDVARGgLHH23","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x76ee38134347b577811931f5576e53711c8d53f98748db612ad2ce075bf3f57b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3AyDR4RrbBMDVARGgLHH23.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3AyDR4RrbBMDVARGgLHH23.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x76ee38134347b577811931f5576e53711c8d53f98748db612ad2ce075bf3f57b","isrc":"CZA168100089","name":"Jasná zpráva","registered_at":"2026-06-27T10:51:29Z","spotify_id":"3AyDR4RrbBMDVARGgLHH23","type":"track"}

Honky tonky blues
type: MusicRecording
duration: PT3M0S
duration ms: 180000
explicit: false
by artist: Jiří Suchý
in album: Nejzpívanější české písničky
  type: MusicAlbum
  date published: 2019-09-06
isrc code: CZA166400061

Píseň, co mě učil listopad
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duration: PT3M18S
duration ms: 198000
explicit: false
by artist: Wabi Danek
in album: Nejzpívanější české písničky
  type: MusicAlbum
  date published: 2019-09-06
isrc code: CZA168100366
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T18:54:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0fbea6fae90079f01e770ddcdd0c3440963fddef80d38f06eb3096977fdf3181
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956891
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956891
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1QgceaGJxaZ1v6KFZycMxb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1QgceaGJxaZ1v6KFZycMxb
additional property: OTSTimestamp
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  value: 2026-07-06T07:16:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0fbea6fae90079f01e770ddcdd0c3440963fddef80d38f06eb3096977fdf3181","isrc":"CZA168100366","name":"Píseň, co mě učil listopad","registered_at":"2026-06-05T18:54:31Z","spotify_id":"1QgceaGJxaZ1v6KFZycMxb","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x0fbea6fae90079f01e770ddcdd0c3440963fddef80d38f06eb3096977fdf3181. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1QgceaGJxaZ1v6KFZycMxb.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1QgceaGJxaZ1v6KFZycMxb.
  date published: 2026-07-06T07:16:32Z
  text: {"copyright_id":"0x0fbea6fae90079f01e770ddcdd0c3440963fddef80d38f06eb3096977fdf3181","isrc":"CZA168100366","name":"Píseň, co mě učil listopad","registered_at":"2026-06-05T18:54:31Z","spotify_id":"1QgceaGJxaZ1v6KFZycMxb","type":"track"}

Popelky
type: MusicRecording
duration: PT2M58S
duration ms: 178000
explicit: false
by artist: Karel Černoch
in album: Nejzpívanější české písničky
  type: MusicAlbum
  date published: 2019-09-06
isrc code: CZA167100524
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T03:49:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfa248c186e47d76f96311955506b921043642e355dcd1465264c225396b803cd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956889
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956889
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/3YXqINiwLCYXGMAds4E7bW.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3YXqINiwLCYXGMAds4E7bW
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T06:56:49Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xfa248c186e47d76f96311955506b921043642e355dcd1465264c225396b803cd. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3YXqINiwLCYXGMAds4E7bW.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3YXqINiwLCYXGMAds4E7bW.
  date published: 2026-07-06T06:56:49Z

Niagara
type: MusicRecording
duration: PT3M0S
duration ms: 180000
explicit: false
by artist: Westmeni
in album: Nejzpívanější české písničky
  type: MusicAlbum
  date published: 2019-09-06
isrc code: CZA167000710

Whisky, to je moje gusto
type: MusicRecording
duration: PT3M4S
duration ms: 184000
explicit: false
by artist: Vera Martinova
by artist: Schovanky
in album: Nejzpívanější české písničky
  type: MusicAlbum
  date published: 2019-09-06
isrc code: CZA540254514
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T09:56:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0ea8b49a6461e4a619b784c1b9ae8d05f710bfcc868a91e5167ae31524ddc2ed
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956856
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956856
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0O5OGUWRlGODF1XPloAyRv.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0O5OGUWRlGODF1XPloAyRv
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T01:25:57Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0ea8b49a6461e4a619b784c1b9ae8d05f710bfcc868a91e5167ae31524ddc2ed","isrc":"CZA540254514","name":"Whisky, to je moje gusto","registered_at":"2026-06-10T09:56:25Z","spotify_id":"0O5OGUWRlGODF1XPloAyRv","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x0ea8b49a6461e4a619b784c1b9ae8d05f710bfcc868a91e5167ae31524ddc2ed. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0O5OGUWRlGODF1XPloAyRv.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0O5OGUWRlGODF1XPloAyRv.
  date published: 2026-07-06T01:25:57Z
  text: {"copyright_id":"0x0ea8b49a6461e4a619b784c1b9ae8d05f710bfcc868a91e5167ae31524ddc2ed","isrc":"CZA540254514","name":"Whisky, to je moje gusto","registered_at":"2026-06-10T09:56:25Z","spotify_id":"0O5OGUWRlGODF1XPloAyRv","type":"track"}

Otázky
type: MusicRecording
duration: PT4M13S
duration ms: 253000
explicit: false
by artist: Olympic
in album: Nejzpívanější české písničky
  type: MusicAlbum
  date published: 2019-09-06
isrc code: CZA167000183

Veď mě dál, cesto má
type: MusicRecording
duration: PT2M45S
duration ms: 165000
explicit: false
by artist: Pavel Bobek
in album: Nejzpívanější české písničky
  type: MusicAlbum
  date published: 2019-09-06
isrc code: CZA167500421
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T10:39:34+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9998195dbc422e41277ec78848808e23354b07065ad8543546fab6a79d59434b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956312
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0svdyubp4DeedpgRjw7D8e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0svdyubp4DeedpgRjw7D8e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9998195dbc422e41277ec78848808e23354b07065ad8543546fab6a79d59434b","isrc":"CZA167500421","name":"Veď mě dál, cesto má","registered_at":"2026-06-04T10:39:34Z","spotify_id":"0svdyubp4DeedpgRjw7D8e","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x9998195dbc422e41277ec78848808e23354b07065ad8543546fab6a79d59434b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0svdyubp4DeedpgRjw7D8e.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0svdyubp4DeedpgRjw7D8e.
  date published: 2026-07-02T05:09:12Z
  text: {"copyright_id":"0x9998195dbc422e41277ec78848808e23354b07065ad8543546fab6a79d59434b","isrc":"CZA167500421","name":"Veď mě dál, cesto má","registered_at":"2026-06-04T10:39:34Z","spotify_id":"0svdyubp4DeedpgRjw7D8e","type":"track"}

Tom dooley
type: MusicRecording
duration: PT3M2S
duration ms: 182000
explicit: false
by artist: Mirek Hoffmann
by artist: Zelenáči Mirka Hoffmanna
in album: Nejzpívanější české písničky
  type: MusicAlbum
  date published: 2019-09-06
isrc code: CZA549509914

Jednou mi fotr povídá
type: MusicRecording
duration: PT3M16S
duration ms: 196000
explicit: false
by artist: Jan Kalousek
in album: Nejzpívanější české písničky
  type: MusicAlbum
  date published: 2019-09-06
isrc code: CZA100201053
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T06:00:30+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2b2a57772172958dfe98415a63d8eb4997985f56f7df5b71b01d7e61e318a226
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953520
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/52VxDaoM9ZCPgHQi5nwKu5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/52VxDaoM9ZCPgHQi5nwKu5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2b2a57772172958dfe98415a63d8eb4997985f56f7df5b71b01d7e61e318a226","isrc":"CZA100201053","name":"Jednou mi fotr povídá","registered_at":"2026-06-10T06:00:30Z","spotify_id":"52VxDaoM9ZCPgHQi5nwKu5","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x2b2a57772172958dfe98415a63d8eb4997985f56f7df5b71b01d7e61e318a226. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/52VxDaoM9ZCPgHQi5nwKu5.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/52VxDaoM9ZCPgHQi5nwKu5.
  date published: 2026-06-13T13:32:09Z
  text: {"copyright_id":"0x2b2a57772172958dfe98415a63d8eb4997985f56f7df5b71b01d7e61e318a226","isrc":"CZA100201053","name":"Jednou mi fotr povídá","registered_at":"2026-06-10T06:00:30Z","spotify_id":"52VxDaoM9ZCPgHQi5nwKu5","type":"track"}

Podvod
type: MusicRecording
duration: PT3M49S
duration ms: 229972
explicit: false
by artist: Jan Nedved
by artist: Frantisek Nedved
in album: Nejzpívanější české písničky
  type: MusicAlbum
  date published: 2019-09-06
isrc code: CZA100110085
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T12:12:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfa1970b2abe1471fe6c9dfd7ec70576544356d82fbf76472f6a1f31d6e2b38cc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956302
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1NaETyu3NpTj8lCQxjHQD1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1NaETyu3NpTj8lCQxjHQD1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xfa1970b2abe1471fe6c9dfd7ec70576544356d82fbf76472f6a1f31d6e2b38cc. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1NaETyu3NpTj8lCQxjHQD1.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1NaETyu3NpTj8lCQxjHQD1.
  date published: 2026-07-02T03:30:09Z

Ze všech chlapů nejšťastnější chlap
type: MusicRecording
duration: PT3M11S
duration ms: 191000
explicit: false
by artist: Hoboes
in album: Nejzpívanější české písničky
  type: MusicAlbum
  date published: 2019-09-06
isrc code: CZA167500343

Bon soir, mademoiselle Paris
type: MusicRecording
duration: PT3M49S
duration ms: 229000
explicit: false
by artist: Olympic
in album: Nejzpívanější české písničky
  type: MusicAlbum
  date published: 2019-09-06
isrc code: CZA167100463

Do tretice Stastne a vesele
type: MusicAlbum
date published: 2013-01-01
track: Nejstedrejsi den
  type: MusicRecording
  duration: PT3M56S
  duration ms: 236986
  explicit: false
  by artist: Helena Vondráčková
  in album: Do tretice Stastne a vesele
    type: MusicAlbum
    date published: 2013-01-01
track: Tisic andelu - One thousand angels
  type: MusicRecording
  duration: PT2M33S
  duration ms: 153200
  explicit: false
  by artist: Čechomor
  in album: Do tretice Stastne a vesele
    type: MusicAlbum
    date published: 2013-01-01
track: Okna dokoran
  type: MusicRecording
  duration: PT3M11S
  duration ms: 191666
  explicit: false
  by artist: Lucie Bílá
  in album: Do tretice Stastne a vesele
    type: MusicAlbum
    date published: 2013-01-01
track: Vianocna
  type: MusicRecording
  duration: PT2M11S
  duration ms: 131773
  explicit: false
  by artist: Richard Muller
  in album: Do tretice Stastne a vesele
    type: MusicAlbum
    date published: 2013-01-01
  isrc code: CZA110111011
track: Zimni kralovna
  type: MusicRecording
  duration: PT4M15S
  duration ms: 255653
  explicit: false
  by artist: Lucie Vondráčková
  in album: Do tretice Stastne a vesele
    type: MusicAlbum
    date published: 2013-01-01
track: Na nebi sviti
  type: MusicRecording
  duration: PT2M50S
  duration ms: 170466
  explicit: false
  by artist: Dan Bárta
  by artist: Ozon
  in album: Do tretice Stastne a vesele
    type: MusicAlbum
    date published: 2013-01-01
track: O bozi den /O Happy Day/
  type: MusicRecording
  duration: PT4M43S
  duration ms: 283066
  explicit: false
  by artist: Daniela Sinkorova
  in album: Do tretice Stastne a vesele
    type: MusicAlbum
    date published: 2013-01-01
track: Prima koleda
  type: MusicRecording
  duration: PT2M38S
  duration ms: 158240
  explicit: false
  by artist: Karel Černoch
  in album: Do tretice Stastne a vesele
    type: MusicAlbum
    date published: 2013-01-01
track: Ovcak a kovar
  type: MusicRecording
  duration: PT3M27S
  duration ms: 207600
  explicit: false
  by artist: Jan Nedved
  by artist: Frantisek Nedved
  in album: Do tretice Stastne a vesele
    type: MusicAlbum
    date published: 2013-01-01
  isrc code: CZUM71100329
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-11T02:24:30+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x50a3dbc1ae6d247f332150ee641448d8a11c084db044894ddbaab744057a3523
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/957120
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/6Kv0RonF2Cd32aaAijNEoq.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6Kv0RonF2Cd32aaAijNEoq
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x50a3dbc1ae6d247f332150ee641448d8a11c084db044894ddbaab744057a3523","isrc":"CZUM71100329","name":"Ovcak a kovar","registered_at":"2026-06-11T02:24:30Z","spotify_id":"6Kv0RonF2Cd32aaAijNEoq","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x50a3dbc1ae6d247f332150ee641448d8a11c084db044894ddbaab744057a3523. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6Kv0RonF2Cd32aaAijNEoq.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6Kv0RonF2Cd32aaAijNEoq.
    date published: 2026-07-08T03:22:41Z
    text: {"copyright_id":"0x50a3dbc1ae6d247f332150ee641448d8a11c084db044894ddbaab744057a3523","isrc":"CZUM71100329","name":"Ovcak a kovar","registered_at":"2026-06-11T02:24:30Z","spotify_id":"6Kv0RonF2Cd32aaAijNEoq","type":"track"}
track: Laduv betlem
  type: MusicRecording
  duration: PT3M5S
  duration ms: 185906
  explicit: false
  by artist: Frantisek Nedved
  in album: Do tretice Stastne a vesele
    type: MusicAlbum
    date published: 2013-01-01
track: Vzacnej den
  type: MusicRecording
  duration: PT3M36S
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Blues Rock Line 1968-1989
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Lost Soul
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Blues Podzimního Odpoledne
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U Kiosku - Live
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Sladké je žít
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Špejchar blues
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Blues Pro Poštovní Doručovatelku
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Cokoli
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Yetti Blues
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Lednový Blues - Live
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Blues O Stáří - Live
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Špitál U Sv. Jakuba
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Aceton Blues
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San Francisco Bay Blues
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Přátelé
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Co je to blues - Live
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Blues mokrejch bot - Live
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Camp
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Na cestě
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Believe Me Darlin'
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Blues Jako Řemen / Krátký/
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Krasnej dar
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    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/6dDtR89cBdFb3L8WMgjTSm.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6dDtR89cBdFb3L8WMgjTSm
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T05:09:12Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xad2eb0d3799c4661aa4ea0ca0809b0080e59140f6f4b08effbe0a28036a1c857. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6dDtR89cBdFb3L8WMgjTSm.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6dDtR89cBdFb3L8WMgjTSm.
    date published: 2026-07-02T05:09:12Z
track: Bajecna leta pod psa
  type: MusicRecording
  duration: PT4M35S
  duration ms: 275240
  explicit: false
  by artist: Ivan Hlas
  in album: Krasnej dar
    type: MusicAlbum
    date published: 2016-10-21
  isrc code: CZA231600297
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-20T13:38:27+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6481efb7853df08599c0b7081417993fbf5ccbd3f6f82945c0a1a82103985b01
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956304
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/6cZnhxsUzWU0Ns0n6i4tdl.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6cZnhxsUzWU0Ns0n6i4tdl
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x6481efb7853df08599c0b7081417993fbf5ccbd3f6f82945c0a1a82103985b01","isrc":"CZA231600297","name":"Bajecna leta pod psa","registered_at":"2026-06-20T13:38:27Z","spotify_id":"6cZnhxsUzWU0Ns0n6i4tdl","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x6481efb7853df08599c0b7081417993fbf5ccbd3f6f82945c0a1a82103985b01. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6cZnhxsUzWU0Ns0n6i4tdl.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6cZnhxsUzWU0Ns0n6i4tdl.
    date published: 2026-07-02T03:55:08Z
    text: {"copyright_id":"0x6481efb7853df08599c0b7081417993fbf5ccbd3f6f82945c0a1a82103985b01","isrc":"CZA231600297","name":"Bajecna leta pod psa","registered_at":"2026-06-20T13:38:27Z","spotify_id":"6cZnhxsUzWU0Ns0n6i4tdl","type":"track"}
track: Ja se neumim smat
  type: MusicRecording
  duration: PT4M21S
  duration ms: 261186
  explicit: false
  by artist: Ivan Hlas
  in album: Krasnej dar
    type: MusicAlbum
    date published: 2016-10-21
  isrc code: CZA231600298
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-27T19:18:52+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xfac1cd170d504343bbdb36ecc6ca061e206a15fd90f3a0bd43992e79fabc5ac8
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956351
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956351
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/324PDMpzElFqJIaAjVHpBu.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/324PDMpzElFqJIaAjVHpBu
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T11:38:34Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0xfac1cd170d504343bbdb36ecc6ca061e206a15fd90f3a0bd43992e79fabc5ac8","isrc":"CZA231600298","name":"Ja se neumim smat","registered_at":"2026-06-27T19:18:52Z","spotify_id":"324PDMpzElFqJIaAjVHpBu","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xfac1cd170d504343bbdb36ecc6ca061e206a15fd90f3a0bd43992e79fabc5ac8. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/324PDMpzElFqJIaAjVHpBu.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/324PDMpzElFqJIaAjVHpBu.
    date published: 2026-07-02T11:38:34Z
    text: {"copyright_id":"0xfac1cd170d504343bbdb36ecc6ca061e206a15fd90f3a0bd43992e79fabc5ac8","isrc":"CZA231600298","name":"Ja se neumim smat","registered_at":"2026-06-27T19:18:52Z","spotify_id":"324PDMpzElFqJIaAjVHpBu","type":"track"}
track: Krasnej dar
  type: MusicRecording
  duration: PT4M56S
  duration ms: 296226
  explicit: false
  by artist: Ivan Hlas
  in album: Krasnej dar
    type: MusicAlbum
    date published: 2016-10-21
  isrc code: CZA231600299
  additional property: CopyrightID
  additional property: CopyrightStatus
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSRecordURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
track: Treba jo
track: Evangelium
track: Poezie
track: Pod zrcadlem
track: Nadrazni blues

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-06-23T18:20:56+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xf803b2060a6fb7e984d62a471b7405281a1e3dce92871b4223d8f4ae654ddd9b

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 956312

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block/956312

OTSRecordURL
type: PropertyValue
value: https://artists.proofprofile.net/proofs/track/5Dtnj2DHSTGkCnB7OXshJ7.json

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5Dtnj2DHSTGkCnB7OXshJ7

OTSTimestamp
type: PropertyValue
value: 2026-07-02T05:09:12Z

OTSCanonicalRecord
type: PropertyValue
value: {"copyright_id":"0xf803b2060a6fb7e984d62a471b7405281a1e3dce92871b4223d8f4ae654ddd9b","isrc":"CZA231600299","name":"Krasnej dar","registered_at":"2026-06-23T18:20:56Z","spotify_id":"5Dtnj2DHSTGkCnB7OXshJ7","type":"track"}

OTSVerifyInstructions
type: PropertyValue
value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf803b2060a6fb7e984d62a471b7405281a1e3dce92871b4223d8f4ae654ddd9b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5Dtnj2DHSTGkCnB7OXshJ7.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5Dtnj2DHSTGkCnB7OXshJ7.
date published: 2026-07-02T05:09:12Z
text: {"copyright_id":"0xf803b2060a6fb7e984d62a471b7405281a1e3dce92871b4223d8f4ae654ddd9b","isrc":"CZA231600299","name":"Krasnej dar","registered_at":"2026-06-23T18:20:56Z","spotify_id":"5Dtnj2DHSTGkCnB7OXshJ7","type":"track"}

Treba jo
type: MusicRecording
duration: PT4M18S
duration ms: 258800
explicit: false
by artist: Ivan Hlas
in album: Krasnej dar
  type: MusicAlbum
  date published: 2016-10-21
isrc code: CZA231600300

Evangelium
type: MusicRecording
duration: PT3M50S
duration ms: 230266
explicit: false
by artist: Ivan Hlas
in album: Krasnej dar
  type: MusicAlbum
  date published: 2016-10-21
isrc code: CZA231600301

Poezie
type: MusicRecording
duration: PT3M47S
duration ms: 227706
explicit: false
by artist: Ivan Hlas
in album: Krasnej dar
  type: MusicAlbum
  date published: 2016-10-21
isrc code: CZA231600302

Pod zrcadlem
type: MusicRecording
duration: PT5M4S
duration ms: 304306
explicit: false
by artist: Ivan Hlas
in album: Krasnej dar
  type: MusicAlbum
  date published: 2016-10-21
isrc code: CZA231600303

Nadrazni blues
type: MusicRecording
duration: PT4M28S
duration ms: 268973
explicit: false
by artist: Ivan Hlas
in album: Krasnej dar
  type: MusicAlbum
  date published: 2016-10-21
isrc code: CZA231600304

Vitr ve vlasech
type: MusicAlbum
date published: 2014-09-08
track: Pro Elisku
  type: MusicRecording
  duration: PT3M16S
  duration ms: 196325
  explicit: false
  by artist: Ivan Hlas
  in album: Vitr ve vlasech
    type: MusicAlbum
    date published: 2014-09-08
  isrc code: CZA231400169
track: Jindy
  type: MusicRecording
  duration: PT3M53S
  duration ms: 233113
  explicit: false
  by artist: Ivan Hlas
  in album: Vitr ve vlasech
    type: MusicAlbum
    date published: 2014-09-08
  isrc code: CZA231400170
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-27T19:18:20+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4d5f7c0fb671d7f308e1f456f30c748f2946610a387ac27c2cae71de41475447
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956351
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956351
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/7JYt4p1YGkS6yTsAYxiDo9.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7JYt4p1YGkS6yTsAYxiDo9
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T11:38:34Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x4d5f7c0fb671d7f308e1f456f30c748f2946610a387ac27c2cae71de41475447. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7JYt4p1YGkS6yTsAYxiDo9.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7JYt4p1YGkS6yTsAYxiDo9.
    date published: 2026-07-02T11:38:34Z
track: Vino a zpev
  type: MusicRecording
  duration: PT4M13S
  duration ms: 253206
  explicit: false
  by artist: Ivan Hlas
  in album: Vitr ve vlasech
    type: MusicAlbum
    date published: 2014-09-08
  isrc code: CZA231400171
track: Pod cepici
  type: MusicRecording
  duration: PT4M52S
  duration ms: 292553
  explicit: false
  by artist: Ivan Hlas
  in album: Vitr ve vlasech
    type: MusicAlbum
    date published: 2014-09-08
  isrc code: CZA231400172
track: Poeticka hospudka
  type: MusicRecording
  duration: PT3M56S
  duration ms: 236827
  explicit: false
  by artist: Ivan Hlas
  in album: Vitr ve vlasech
    type: MusicAlbum
    date published: 2014-09-08
  isrc code: CZA231400173
track: O nas dvou
  type: MusicRecording
  duration: PT3M18S
  duration ms: 198416
  explicit: false
  by artist: Ivan Hlas
  in album: Vitr ve vlasech
    type: MusicAlbum
    date published: 2014-09-08
  isrc code: CZA231400174
track: Vsude je raj
  type: MusicRecording
  duration: PT4M20S
  duration ms: 260142
  explicit: false
  by artist: Ivan Hlas
  in album: Vitr ve vlasech
    type: MusicAlbum
    date published: 2014-09-08
  isrc code: CZA231400175
track: Vypravej mi ...
  type: MusicRecording
  duration: PT3M56S
  duration ms: 236829
  explicit: false
  by artist: Ivan Hlas
  in album: Vitr ve vlasech
    type: MusicAlbum
    date published: 2014-09-08
  isrc code: CZA231400176
track: Jako modelka
  type: MusicRecording
  duration: PT3M51S
  duration ms: 231473
  explicit: false
  by artist: Ivan Hlas
  in album: Vitr ve vlasech
    type: MusicAlbum
    date published: 2014-09-08
  isrc code: CZA231400177
track: Na barevny snure
  type: MusicRecording
  duration: PT3M28S
  duration ms: 208775
  explicit: false
  by artist: Ivan Hlas
  in album: Vitr ve vlasech
    type: MusicAlbum
    date published: 2014-09-08
  isrc code: CZA231400178
track: Davny city z Hanspaul City
  type: MusicRecording
  duration: PT3M57S
  duration ms: 237795
  explicit: false
  by artist: Ivan Hlas
  in album: Vitr ve vlasech
    type: MusicAlbum
    date published: 2014-09-08
  isrc code: CZA231400179
track: Zlata hodina
  type: MusicRecording
  duration: PT4M31S
  duration ms: 271482
  explicit: false
  by artist: Ivan Hlas
  in album: Vitr ve vlasech
    type: MusicAlbum
    date published: 2014-09-08
  isrc code: CZA231400180

1999
type: MusicAlbum
date published: 1999-04-01
track: Až přelezem plot
  type: MusicRecording
  duration: PT2M41S
  duration ms: 161893
  explicit: false
  by artist: Ivan Hlas
  in album: 1999
    type: MusicAlbum
    date published: 1999-04-01
  isrc code: CZA109900301
track: Ať slouží
  type: MusicRecording
  duration: PT4M54S
  duration ms: 294413
  explicit: false
  by artist: Ivan Hlas
  in album: 1999
    type: MusicAlbum
    date published: 1999-04-01
track: Posílám ti dopis
  type: MusicRecording
  duration: PT3M41S
  duration ms: 221866
  explicit: false
  by artist: Ivan Hlas
  in album: 1999
    type: MusicAlbum
    date published: 1999-04-01
  isrc code: CZA109900303
track: Návrat z noční šichty
  type: MusicRecording
  duration: PT4M31S
  duration ms: 271640
  explicit: false
  by artist: Ivan Hlas
  in album: 1999
    type: MusicAlbum
    date published: 1999-04-01
  isrc code: CZA109900304
track: Poslouchej
  type: MusicRecording
  duration: PT3M34S
  duration ms: 214373
  explicit: false
  by artist: Ivan Hlas
  in album: 1999
    type: MusicAlbum
    date published: 1999-04-01
track: Nechejte nás
  type: MusicRecording
  duration: PT3M1S
  duration ms: 181173
  explicit: false
  by artist: Ivan Hlas
  in album: 1999
    type: MusicAlbum
    date published: 1999-04-01
track: Zavolej sestru
  type: MusicRecording
  duration: PT3M41S
  duration ms: 221973
  explicit: false
  by artist: Ivan Hlas
  in album: 1999
    type: MusicAlbum
    date published: 1999-04-01
  isrc code: CZA109900307
track: Obrať list
  type: MusicRecording
  duration: PT5M5S
  duration ms: 305520
  explicit: false
  by artist: Ivan Hlas
  in album: 1999
    type: MusicAlbum
    date published: 1999-04-01
track: Na slámě leží
  type: MusicRecording
  duration: PT3M2S
  duration ms: 182466
  explicit: false
  by artist: Ivan Hlas
  in album: 1999
    type: MusicAlbum
    date published: 1999-04-01
  isrc code: CZA109900309
track: Havrani
  type: MusicRecording
  duration: PT4M53S
  duration ms: 293053
  explicit: false
  by artist: Ivan Hlas
  in album: 1999
    type: MusicAlbum
    date published: 1999-04-01
  isrc code: CZA109900310
track: Třeba jo
  type: MusicRecording
  duration: PT3M59S
  duration ms: 239853
  explicit: false
  by artist: Ivan Hlas
  in album: 1999
    type: MusicAlbum
    date published: 1999-04-01
  isrc code: CZA109900311
track: Cejtim se jak rastaman
  type: MusicRecording
  duration: PT3M45S
  duration ms: 225000
  explicit: false
  by artist: Ivan Hlas
  in album: 1999
    type: MusicAlbum
    date published: 1999-04-01
  isrc code: CZA109900312
track: Finanční tíseň
  type: MusicRecording
  duration: PT4M21S
  duration ms: 261813
  explicit: false
  by artist: Ivan Hlas
  in album: 1999
    type: MusicAlbum
    date published: 1999-04-01
track: Nechci už dál žít s Marií
  type: MusicRecording
  duration: PT3M20S
  duration ms: 200266
  explicit: false
  by artist: Ivan Hlas
  in album: 1999
    type: MusicAlbum
    date published: 1999-04-01
track: Velkoměstský blues
  type: MusicRecording
  duration: PT5M8S
  duration ms: 308613
  explicit: false
  by artist: Ivan Hlas
  in album: 1999
    type: MusicAlbum
    date published: 1999-04-01

Alias
type: MusicAlbum
date published: 1997-04-21
track: Vy jste
  type: MusicRecording
  duration: PT3M19S
  duration ms: 199533
  explicit: false
  by artist: Ivan Kral
  by artist: Ivan Hlas
  by artist: David Koller
  in album: Alias
    type: MusicAlbum
    date published: 1997-04-21
  isrc code: CZUM71800189
track: Sluneční prach
  type: MusicRecording
  duration: PT3M27S
  duration ms: 207306
  explicit: false
  by artist: Ivan Kral
  by artist: Ivan Hlas
  by artist: David Koller
  in album: Alias
    type: MusicAlbum
    date published: 1997-04-21
  isrc code: CZUM71800190
track: Nuselský schody
  type: MusicRecording
  duration: PT2M47S
  duration ms: 167026
  explicit: false
  by artist: Ivan Kral
  by artist: Ivan Hlas
  by artist: David Koller
  in album: Alias
    type: MusicAlbum
    date published: 1997-04-21
  isrc code: CZUM71800191
track: Řekni mi proč
  type: MusicRecording
  duration: PT3M5S
  duration ms: 185280
  explicit: false
  by artist: Ivan Kral
  by artist: Ivan Hlas
  by artist: David Koller
  in album: Alias
    type: MusicAlbum
    date published: 1997-04-21
  isrc code: CZUM71800192
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-21T07:57:20+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x44565f12e29dce43ab9fbe38f3cf8964b72dd9b3112280957559f790fa149c74
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956304
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/1iEABTTLHpDlxyPS0KvMxi.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1iEABTTLHpDlxyPS0KvMxi
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x44565f12e29dce43ab9fbe38f3cf8964b72dd9b3112280957559f790fa149c74","isrc":"CZUM71800192","name":"Řekni mi proč","registered_at":"2026-06-21T07:57:20Z","spotify_id":"1iEABTTLHpDlxyPS0KvMxi","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x44565f12e29dce43ab9fbe38f3cf8964b72dd9b3112280957559f790fa149c74. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1iEABTTLHpDlxyPS0KvMxi.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1iEABTTLHpDlxyPS0KvMxi.
    date published: 2026-07-02T03:55:08Z
    text: {"copyright_id":"0x44565f12e29dce43ab9fbe38f3cf8964b72dd9b3112280957559f790fa149c74","isrc":"CZUM71800192","name":"Řekni mi proč","registered_at":"2026-06-21T07:57:20Z","spotify_id":"1iEABTTLHpDlxyPS0KvMxi","type":"track"}
track: Kdo soudí i nebe
  type: MusicRecording
  duration: PT3M54S
  duration ms: 234480
  explicit: false
  by artist: Ivan Kral
  by artist: Ivan Hlas
  by artist: David Koller
  in album: Alias
    type: MusicAlbum
    date published: 1997-04-21
  isrc code: CZUM71800193
track: Déja Vu
  type: MusicRecording
  duration: PT2M42S
  duration ms: 162760
  explicit: false
  by artist: Ivan Kral
  by artist: Ivan Hlas
  by artist: David Koller
  in album: Alias
    type: MusicAlbum
    date published: 1997-04-21
  isrc code: CZUM71800194
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-27T11:29:40+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x17b067006b0e181329575218a147b241610a48bd192a9a043a1408c792c3f19e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956351
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956351
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/2XJxWoGNQhJQvayNR4b3DL.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2XJxWoGNQhJQvayNR4b3DL
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T11:38:34Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x17b067006b0e181329575218a147b241610a48bd192a9a043a1408c792c3f19e","isrc":"CZUM71800194","name":"Déja Vu","registered_at":"2026-06-27T11:29:40Z","spotify_id":"2XJxWoGNQhJQvayNR4b3DL","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x17b067006b0e181329575218a147b241610a48bd192a9a043a1408c792c3f19e. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2XJxWoGNQhJQvayNR4b3DL.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2XJxWoGNQhJQvayNR4b3DL.
    date published: 2026-07-02T11:38:34Z
    text: {"copyright_id":"0x17b067006b0e181329575218a147b241610a48bd192a9a043a1408c792c3f19e","isrc":"CZUM71800194","name":"Déja Vu","registered_at":"2026-06-27T11:29:40Z","spotify_id":"2XJxWoGNQhJQvayNR4b3DL","type":"track"}
track: Lístek do starejch časů
  type: MusicRecording
  duration: PT3M39S
  duration ms: 219480
  explicit: false
  by artist: Ivan Kral
  by artist: Ivan Hlas
  by artist: David Koller
  in album: Alias
    type: MusicAlbum
    date published: 1997-04-21
  isrc code: CZUM71800195
track: Zavolej
  type: MusicRecording
  duration: PT2M16S
  duration ms: 136773
  explicit: false
  by artist: Ivan Kral
  by artist: Ivan Hlas
  by artist: David Koller
  in album: Alias
    type: MusicAlbum
    date published: 1997-04-21
  isrc code: CZUM71800198
track: Neděle
  type: MusicRecording
  duration: PT2M34S
  duration ms: 154333
  explicit: false
  by artist: Ivan Kral
  by artist: Ivan Hlas
  by artist: David Koller
  in album: Alias
    type: MusicAlbum
    date published: 1997-04-21
  isrc code: CZUM72100668
track: To se stává
  type: MusicRecording
  duration: PT4M9S
  duration ms: 249506
  explicit: false
  by artist: Ivan Kral
  by artist: Ivan Hlas
  by artist: David Koller
  in album: Alias
    type: MusicAlbum
    date published: 1997-04-21
  isrc code: CZUM71800197
track: Jennifer
  type: MusicRecording
  duration: PT2M36S
  duration ms: 156133
  explicit: false
  by artist: Ivan Kral
  by artist: Ivan Hlas
  by artist: David Koller
  in album: Alias
  isrc code: CZUM72100669
  additional property: CopyrightID
  additional property: CopyrightStatus
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSRecordURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
track: Poprvé letíš
track: Baby, něco ti slíbím

Ivan Kral
type: MusicGroup

Ivan Hlas
type: MusicGroup

David Koller
type: MusicGroup

Alias
type: MusicAlbum
date published: 1997-04-21

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-06-21T07:58:00+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xdd7f466cfe5d45a6f740847948fcc293f10daf94d216aeff1f0f79242c7d2fb8

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 956304

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block/956304

OTSRecordURL
type: PropertyValue
value: https://artists.proofprofile.net/proofs/track/6V6ELvDdeOhLJB2VHyl4ud.json

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6V6ELvDdeOhLJB2VHyl4ud

OTSTimestamp
type: PropertyValue
value: 2026-07-02T03:55:08Z

OTSCanonicalRecord
type: PropertyValue

OTSVerifyInstructions
type: PropertyValue
value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd7f466cfe5d45a6f740847948fcc293f10daf94d216aeff1f0f79242c7d2fb8. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6V6ELvDdeOhLJB2VHyl4ud.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6V6ELvDdeOhLJB2VHyl4ud.
date published: 2026-07-02T03:55:08Z

Poprvé letíš
type: MusicRecording
duration: PT3M28S
duration ms: 208800
explicit: false
by artist: Ivan Kral
by artist: Ivan Hlas
by artist: David Koller
in album: Alias
  type: MusicAlbum
  date published: 1997-04-21
isrc code: CZUM71800196
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T21:09:57+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x84da7837b2f43e54f76e29d8f232bcec089aa384cefcaa6f98dfbe1c1a5d013c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956349
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956349
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/78w3XbN9j3bjSxf2XBzj2C.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/78w3XbN9j3bjSxf2XBzj2C
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T11:34:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x84da7837b2f43e54f76e29d8f232bcec089aa384cefcaa6f98dfbe1c1a5d013c","isrc":"CZUM71800196","name":"Poprvé letíš","registered_at":"2026-06-24T21:09:57Z","spotify_id":"78w3XbN9j3bjSxf2XBzj2C","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x84da7837b2f43e54f76e29d8f232bcec089aa384cefcaa6f98dfbe1c1a5d013c. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/78w3XbN9j3bjSxf2XBzj2C.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/78w3XbN9j3bjSxf2XBzj2C.
  date published: 2026-07-02T11:34:59Z
  text: {"copyright_id":"0x84da7837b2f43e54f76e29d8f232bcec089aa384cefcaa6f98dfbe1c1a5d013c","isrc":"CZUM71800196","name":"Poprvé letíš","registered_at":"2026-06-24T21:09:57Z","spotify_id":"78w3XbN9j3bjSxf2XBzj2C","type":"track"}

Baby, něco ti slíbím
type: MusicRecording
duration: PT2M32S
duration ms: 152200
explicit: false
by artist: Ivan Kral
by artist: Ivan Hlas
by artist: David Koller
in album: Alias
  type: MusicAlbum
  date published: 1997-04-21
isrc code: CZUM71800199

Den Šťastného Koně
type: MusicAlbum
date published: 1997-01-01
track: Tanečník
  type: MusicRecording
  duration: PT4M4S
  duration ms: 244840
  explicit: false
  by artist: Ivan Hlas
  in album: Den Šťastného Koně
    type: MusicAlbum
    date published: 1997-01-01
  isrc code: CZA160606821
track: Marie, Dej Mi Čaj
  type: MusicRecording
  duration: PT3M21S
  duration ms: 201066
  explicit: false
  by artist: Ivan Hlas
  in album: Den Šťastného Koně
    type: MusicAlbum
    date published: 1997-01-01
  isrc code: CZA169700297
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-18T22:28:39+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc8c7664cb4fef1239872724e6079e682f2777a897178f61a89bd31624f6891a8
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956304
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/6shBSE2YcjYVcg84KwbPXO.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6shBSE2YcjYVcg84KwbPXO
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0xc8c7664cb4fef1239872724e6079e682f2777a897178f61a89bd31624f6891a8","isrc":"CZA169700297","name":"Marie, Dej Mi Čaj","registered_at":"2026-06-18T22:28:39Z","spotify_id":"6shBSE2YcjYVcg84KwbPXO","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xc8c7664cb4fef1239872724e6079e682f2777a897178f61a89bd31624f6891a8. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6shBSE2YcjYVcg84KwbPXO.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6shBSE2YcjYVcg84KwbPXO.
    date published: 2026-07-02T03:55:08Z
    text: {"copyright_id":"0xc8c7664cb4fef1239872724e6079e682f2777a897178f61a89bd31624f6891a8","isrc":"CZA169700297","name":"Marie, Dej Mi Čaj","registered_at":"2026-06-18T22:28:39Z","spotify_id":"6shBSE2YcjYVcg84KwbPXO","type":"track"}
track: Den Šťastného Koně
  type: MusicRecording
  duration: PT3M46S
  duration ms: 226400
  explicit: false
  by artist: Ivan Hlas
  in album: Den Šťastného Koně
    type: MusicAlbum
    date published: 1997-01-01
  isrc code: CZA160606309
track: Jenom Jednou
  type: MusicRecording
  duration: PT4M11S
  duration ms: 251693
  explicit: false
  by artist: Ivan Hlas
  in album: Den Šťastného Koně
    type: MusicAlbum
    date published: 1997-01-01
  isrc code: CZA160606423
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-19T18:53:39+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x02c31dd74da36b4c4f0c3bd4f3ace20fdc7e5009b95abf06cc65925cd3fb8807
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956302
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956302
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/7EE2DRc0w88kwPeFQ3M21O.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7EE2DRc0w88kwPeFQ3M21O
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x02c31dd74da36b4c4f0c3bd4f3ace20fdc7e5009b95abf06cc65925cd3fb8807","isrc":"CZA160606423","name":"Jenom Jednou","registered_at":"2026-06-19T18:53:39Z","spotify_id":"7EE2DRc0w88kwPeFQ3M21O","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x02c31dd74da36b4c4f0c3bd4f3ace20fdc7e5009b95abf06cc65925cd3fb8807. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7EE2DRc0w88kwPeFQ3M21O.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7EE2DRc0w88kwPeFQ3M21O.
    date published: 2026-07-02T03:30:09Z
    text: {"copyright_id":"0x02c31dd74da36b4c4f0c3bd4f3ace20fdc7e5009b95abf06cc65925cd3fb8807","isrc":"CZA160606423","name":"Jenom Jednou","registered_at":"2026-06-19T18:53:39Z","spotify_id":"7EE2DRc0w88kwPeFQ3M21O","type":"track"}
track: Báječná Léta Pod Psa
  type: MusicRecording
  duration: PT4M39S
  duration ms: 279440
  explicit: false
  by artist: Ivan Hlas
  in album: Den Šťastného Koně
    type: MusicAlbum
    date published: 1997-01-01
  isrc code: CZA160408647
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-08T15:19:09+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x5f226828820338f41bb52bda196c5e4dbd9c16a5abecb975d4ee9375b5f51827
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953528
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953528
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/5OK42AcDM0VjgJbSZRcBxw.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5OK42AcDM0VjgJbSZRcBxw
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T15:41:10Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x5f226828820338f41bb52bda196c5e4dbd9c16a5abecb975d4ee9375b5f51827","isrc":"CZA160408647","name":"Báječná Léta Pod Psa","registered_at":"2026-06-08T15:19:09Z","spotify_id":"5OK42AcDM0VjgJbSZRcBxw","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x5f226828820338f41bb52bda196c5e4dbd9c16a5abecb975d4ee9375b5f51827. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5OK42AcDM0VjgJbSZRcBxw.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5OK42AcDM0VjgJbSZRcBxw.
    date published: 2026-06-13T15:41:10Z
    text: {"copyright_id":"0x5f226828820338f41bb52bda196c5e4dbd9c16a5abecb975d4ee9375b5f51827","isrc":"CZA160408647","name":"Báječná Léta Pod Psa","registered_at":"2026-06-08T15:19:09Z","spotify_id":"5OK42AcDM0VjgJbSZRcBxw","type":"track"}
track: My Nejsme Děti
  type: MusicRecording
  duration: PT3M3S
  duration ms: 183666
  explicit: false
  by artist: Ivan Hlas
  in album: Den Šťastného Koně
    type: MusicAlbum
    date published: 1997-01-01
  isrc code: CZA160606545
track: O Tiché Noci
  type: MusicRecording
  duration: PT3M18S
  duration ms: 198306
  explicit: false
  by artist: Ivan Hlas
  in album: Den Šťastného Koně
    type: MusicAlbum
    date published: 1997-01-01
  isrc code: CZA169700415
track: Balada Pro H.Ch.A.
  type: MusicRecording
  duration: PT3M34S
  duration ms: 214506
  explicit: false
  by artist: Ivan Hlas
  in album: Den Šťastného Koně
    type: MusicAlbum
    date published: 1997-01-01
  isrc code: CZA160606246
track: Ráno S Duhovým Mostem
  type: MusicRecording
  duration: PT4M20S
  duration ms: 260933
  explicit: false
  by artist: Ivan Hlas
  in album: Den Šťastného Koně
  isrc code: CZA160606675
track: Sezóna Čarodějnic
track: Poslední Klíč K Dálnici
track: Neónová Tma

Ivan Hlas
type: MusicGroup

Den Šťastného Koně
type: MusicAlbum
date published: 1997-01-01

Sezóna Čarodějnic
type: MusicRecording
duration: PT4M28S
duration ms: 268000
explicit: false
by artist: Ivan Hlas
in album: Den Šťastného Koně
  type: MusicAlbum
  date published: 1997-01-01
isrc code: CZA160606711

Poslední Klíč K Dálnici
type: MusicRecording
duration: PT3M28S
duration ms: 208573
explicit: false
by artist: Ivan Hlas
in album: Den Šťastného Koně
  type: MusicAlbum
  date published: 1997-01-01
isrc code: CZA160606635

Neónová Tma
type: MusicRecording
duration: PT4M8S
duration ms: 248560
explicit: false
by artist: Ivan Hlas
in album: Den Šťastného Koně
  type: MusicAlbum
  date published: 1997-01-01
isrc code: CZA160606565

Tanec Při Svíčkách
type: MusicAlbum
date published: 1995-01-01
track: Podivná Věc
  type: MusicRecording
  duration: PT3M8S
  duration ms: 188293
  explicit: false
  by artist: Ivan Hlas
  in album: Tanec Při Svíčkách
    type: MusicAlbum
    date published: 1995-01-01
  isrc code: CZA169500539
track: Nádražní Blues
  type: MusicRecording
  duration: PT4M38S
  duration ms: 278840
  explicit: false
  by artist: Ivan Hlas
  in album: Tanec Při Svíčkách
    type: MusicAlbum
    date published: 1995-01-01
  isrc code: CZA169500540
track: Tanec Při Svíčkách
  type: MusicRecording
  duration: PT4M29S
  duration ms: 269760
  explicit: false
  by artist: Ivan Hlas
  in album: Tanec Při Svíčkách
    type: MusicAlbum
    date published: 1995-01-01
  isrc code: CZA169500541
track: Krásná A Veliká
  type: MusicRecording
  duration: PT3M13S
  duration ms: 193840
  explicit: false
  by artist: Ivan Hlas
  in album: Tanec Při Svíčkách
    type: MusicAlbum
    date published: 1995-01-01
  isrc code: CZA169500542
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-27T19:18:46+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6f0a100bf61ba9dc9a34ca8545228d9d58917b78d8e1635f75d3b0c9450edffa
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956351
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956351
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/7JXM1QDpN8W5KJBX3ebgD3.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7JXM1QDpN8W5KJBX3ebgD3
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T11:38:34Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x6f0a100bf61ba9dc9a34ca8545228d9d58917b78d8e1635f75d3b0c9450edffa","isrc":"CZA169500542","name":"Krásná A Veliká","registered_at":"2026-06-27T19:18:46Z","spotify_id":"7JXM1QDpN8W5KJBX3ebgD3","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x6f0a100bf61ba9dc9a34ca8545228d9d58917b78d8e1635f75d3b0c9450edffa. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7JXM1QDpN8W5KJBX3ebgD3.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7JXM1QDpN8W5KJBX3ebgD3.
    date published: 2026-07-02T11:38:34Z
    text: {"copyright_id":"0x6f0a100bf61ba9dc9a34ca8545228d9d58917b78d8e1635f75d3b0c9450edffa","isrc":"CZA169500542","name":"Krásná A Veliká","registered_at":"2026-06-27T19:18:46Z","spotify_id":"7JXM1QDpN8W5KJBX3ebgD3","type":"track"}
track: Strašák
  type: MusicRecording
  duration: PT3M1S
  duration ms: 181600
  explicit: false
  by artist: Ivan Hlas
  in album: Tanec Při Svíčkách
    type: MusicAlbum
    date published: 1995-01-01
  isrc code: CZA169500543
track: Svět Je Nevinnej
  type: MusicRecording
  duration: PT5M12S
  duration ms: 312626
  explicit: false
  by artist: Ivan Hlas
  in album: Tanec Při Svíčkách
    type: MusicAlbum
    date published: 1995-01-01
  isrc code: CZA169500544
track: Taková Kouzelná Noc
  type: MusicRecording
  duration: PT3M58S
  duration ms: 238600
  explicit: false
  by artist: Ivan Hlas
  in album: Tanec Při Svíčkách
    type: MusicAlbum
    date published: 1995-01-01
  isrc code: CZA169500545
track: Dej Mi Jen Pár Minut
  type: MusicRecording
  duration: PT3M52S
  duration ms: 232933
  explicit: false
  by artist: Ivan Hlas
  in album: Tanec Při Svíčkách
    type: MusicAlbum
    date published: 1995-01-01
  isrc code: CZA169500359
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-26T06:13:57+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4d63914448a3df24c5ae287cee1ba35d6a95bb00df4093604357e4bdc0f049ee
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956351
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956351
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/7asy8OZUl20wt5V4VoqHqL.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7asy8OZUl20wt5V4VoqHqL
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T11:38:34Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x4d63914448a3df24c5ae287cee1ba35d6a95bb00df4093604357e4bdc0f049ee","isrc":"CZA169500359","name":"Dej Mi Jen Pár Minut","registered_at":"2026-06-26T06:13:57Z","spotify_id":"7asy8OZUl20wt5V4VoqHqL","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x4d63914448a3df24c5ae287cee1ba35d6a95bb00df4093604357e4bdc0f049ee. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7asy8OZUl20wt5V4VoqHqL.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7asy8OZUl20wt5V4VoqHqL.
    date published: 2026-07-02T11:38:34Z
    text: {"copyright_id":"0x4d63914448a3df24c5ae287cee1ba35d6a95bb00df4093604357e4bdc0f049ee","isrc":"CZA169500359","name":"Dej Mi Jen Pár Minut","registered_at":"2026-06-26T06:13:57Z","spotify_id":"7asy8OZUl20wt5V4VoqHqL","type":"track"}
track: My Si Můžem Všechno Dát
  type: MusicRecording
  duration: PT2M21S
  duration ms: 141666
  explicit: false
  by artist: Ivan Hlas
  in album: Tanec Při Svíčkách
    type: MusicAlbum
    date published: 1995-01-01
  isrc code: CZA169500546
track: Aranka Umí "Hula Hop"
  type: MusicRecording
  duration: PT3M2S
  duration ms: 182933
  explicit: false
  by artist: Ivan Hlas
  in album: Tanec Při Svíčkách
    type: MusicAlbum
    date published: 1995-01-01
  isrc code: CZA169500348
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-06T13:34:11+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe0a2d84511e1ecb94d64502722476234883a362fa869767317f798fa68841f6e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953515
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953515
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/5CC9LRQRQVlMn2c8SzbkOj.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5CC9LRQRQVlMn2c8SzbkOj
  additional property: OTSTimestamp
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
track: Franceska

OTSTimestamp
type: PropertyValue
value: 2026-06-13T12:53:06Z

OTSCanonicalRecord
type: PropertyValue
value: {"copyright_id":"0xe0a2d84511e1ecb94d64502722476234883a362fa869767317f798fa68841f6e","isrc":"CZA169500348","name":"Aranka Umí \"Hula Hop\"","registered_at":"2026-06-06T13:34:11Z","spotify_id":"5CC9LRQRQVlMn2c8SzbkOj","type":"track"}

OTSVerifyInstructions
type: PropertyValue
value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a2d84511e1ecb94d64502722476234883a362fa869767317f798fa68841f6e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5CC9LRQRQVlMn2c8SzbkOj.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5CC9LRQRQVlMn2c8SzbkOj.
date published: 2026-06-13T12:53:06Z
text: {"copyright_id":"0xe0a2d84511e1ecb94d64502722476234883a362fa869767317f798fa68841f6e","isrc":"CZA169500348","name":"Aranka Umí \"Hula Hop\"","registered_at":"2026-06-06T13:34:11Z","spotify_id":"5CC9LRQRQVlMn2c8SzbkOj","type":"track"}

Franceska
type: MusicRecording
duration: PT2M53S
duration ms: 173200
explicit: false
by artist: Ivan Hlas
in album: Tanec Při Svíčkách
  type: MusicAlbum
  date published: 1995-01-01
isrc code: CZA169500547

L.P.'93
type: MusicAlbum
date published: 1993-01-01
track: Spravny nebe
  type: MusicRecording
  duration: PT3M35S
  duration ms: 215253
  explicit: false
  by artist: Ivan Hlas
  in album: L.P.'93
    type: MusicAlbum
    date published: 1993-01-01
  isrc code: CZA100201108
track: Jak se mas
  type: MusicRecording
  duration: PT3M0S
  duration ms: 180760
  explicit: false
  by artist: Ivan Hlas
  in album: L.P.'93
    type: MusicAlbum
    date published: 1993-01-01
  isrc code: CZA100201109
track: Tip, Ta , Dyda...(Karlin)
  type: MusicRecording
  duration: PT5M48S
  duration ms: 348413
  explicit: false
  by artist: Ivan Hlas
  in album: L.P.'93
    type: MusicAlbum
    date published: 1993-01-01
  isrc code: CZA100201110
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-10T22:36:08+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xdb67626356ce258b096b8b9ae7b0af46fbe6f22696d12c042e3dbfac306e20d3
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953520
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953520
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/1rKe5cmNnGmARcXpuyM6lj.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1rKe5cmNnGmARcXpuyM6lj
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T13:32:09Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0xdb67626356ce258b096b8b9ae7b0af46fbe6f22696d12c042e3dbfac306e20d3","isrc":"CZA100201110","name":"Tip, Ta , Dyda...(Karlin)","registered_at":"2026-06-10T22:36:08Z","spotify_id":"1rKe5cmNnGmARcXpuyM6lj","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xdb67626356ce258b096b8b9ae7b0af46fbe6f22696d12c042e3dbfac306e20d3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1rKe5cmNnGmARcXpuyM6lj.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1rKe5cmNnGmARcXpuyM6lj.
    date published: 2026-06-13T13:32:09Z
    text: {"copyright_id":"0xdb67626356ce258b096b8b9ae7b0af46fbe6f22696d12c042e3dbfac306e20d3","isrc":"CZA100201110","name":"Tip, Ta , Dyda...(Karlin)","registered_at":"2026-06-10T22:36:08Z","spotify_id":"1rKe5cmNnGmARcXpuyM6lj","type":"track"}
track: Namornikuv plac
  type: MusicRecording
  duration: PT5M17S
  duration ms: 317440
  explicit: false
  by artist: Ivan Hlas
  in album: L.P.'93
    type: MusicAlbum
    date published: 1993-01-01
track: Karneval ustric
  type: MusicRecording
  duration: PT4M54S
  duration ms: 294640
  explicit: false
  by artist: Ivan Hlas
  in album: L.P.'93
    type: MusicAlbum
    date published: 1993-01-01
  isrc code: CZA100201112
track: Horecka
  type: MusicRecording
  duration: PT4M50S
  duration ms: 290280
  explicit: false
  by artist: Ivan Hlas
  in album: L.P.'93
    type: MusicAlbum
    date published: 1993-01-01
  isrc code: CZA100201113
track: Evangelium
  type: MusicRecording
  duration: PT4M24S
  duration ms: 264360
  explicit: false
  by artist: Ivan Hlas
  in album: L.P.'93
    type: MusicAlbum
    date published: 1993-01-01
  isrc code: CZA100201114
track: Rano
  type: MusicRecording
  duration: PT4M18S
  duration ms: 258906
  explicit: false
  by artist: Ivan Hlas
  in album: L.P.'93
    type: MusicAlbum
    date published: 1993-01-01
  isrc code: CZA100201115
track: Hanspaul City
  type: MusicRecording
  duration: PT5M10S
  duration ms: 310760
  explicit: false
  by artist: Ivan Hlas
  in album: L.P.'93
    type: MusicAlbum
    date published: 1993-01-01
  isrc code: CZA100201116
track: Podivej, tato, svita
  type: MusicRecording
  duration: PT3M33S
  duration ms: 213746
  explicit: false
  by artist: Ivan Hlas
  in album: L.P.'93
    type: MusicAlbum
    date published: 1993-01-01
  isrc code: CZA100201117
track: Malagelo
  type: MusicRecording
  duration: PT3M31S
  duration ms: 211066
  explicit: false
  by artist: Ivan Hlas
  in album: L.P.'93
    type: MusicAlbum
    date published: 1993-01-01
  isrc code: CZA100201118
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-07T09:50:37+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9c4147913fe972dee0edef391ce9edb86e7302b2104abbb642338b8be1340aa4
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953536
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953536
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/2E8aZ7jX73QAGWa6QWSxmB.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2E8aZ7jX73QAGWa6QWSxmB
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T17:25:41Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x9c4147913fe972dee0edef391ce9edb86e7302b2104abbb642338b8be1340aa4. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2E8aZ7jX73QAGWa6QWSxmB.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2E8aZ7jX73QAGWa6QWSxmB.
    date published: 2026-06-13T17:25:41Z

Cesta tam a zase zpátky
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Noční Chodec
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Ivan Hlas & Nahlas (+ bonusy)
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Ahoj, Tvůj Petr Vzpomínka Na Petra Nováka (Live)
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    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xb756c56529cb96da7e4f8814c180d2f0da5d4803ba7586c0594040530bcc0270. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0x0H7OQ1Iu7vvUTpDNHdVI.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0x0H7OQ1Iu7vvUTpDNHdVI.
    date published: 2026-06-13T15:41:10Z
    text: {"copyright_id":"0xb756c56529cb96da7e4f8814c180d2f0da5d4803ba7586c0594040530bcc0270","isrc":"CZA160600044","name":"Náhrobní Kámen - Live","registered_at":"2026-06-10T06:08:02Z","spotify_id":"0x0H7OQ1Iu7vvUTpDNHdVI","type":"track"}

Hit Album Vánoční
type: MusicAlbum
date published: 2009-10-12
track: Sliby Se Maj Plnit O Vánocích
  type: MusicRecording
  duration: PT4M0S
  duration ms: 240000
  explicit: false
  by artist: Janek Ledecky
  in album: Hit Album Vánoční
    type: MusicAlbum
    date published: 2009-10-12
track: Vánoční
  type: MusicRecording
  duration: PT5M33S
  duration ms: 333000
  explicit: false
  by artist: Michal Penk
  in album: Hit Album Vánoční
    type: MusicAlbum
    date published: 2009-10-12
  isrc code: CZA540254202
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-22T06:29:43+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x92ad2b7967a29947c5e8669bcdf911b49858761e6ef8ff94d79e543958ea7364
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956312
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956312
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/53GSm4AYYWbG2y5lhUWc6j.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/53GSm4AYYWbG2y5lhUWc6j
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T05:09:12Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x92ad2b7967a29947c5e8669bcdf911b49858761e6ef8ff94d79e543958ea7364","isrc":"CZA540254202","name":"Vánoční","registered_at":"2026-06-22T06:29:43Z","spotify_id":"53GSm4AYYWbG2y5lhUWc6j","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x92ad2b7967a29947c5e8669bcdf911b49858761e6ef8ff94d79e543958ea7364. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/53GSm4AYYWbG2y5lhUWc6j.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/53GSm4AYYWbG2y5lhUWc6j.
    date published: 2026-07-02T05:09:12Z
    text: {"copyright_id":"0x92ad2b7967a29947c5e8669bcdf911b49858761e6ef8ff94d79e543958ea7364","isrc":"CZA540254202","name":"Vánoční","registered_at":"2026-06-22T06:29:43Z","spotify_id":"53GSm4AYYWbG2y5lhUWc6j","type":"track"}
track: Purpura
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  by artist: Damiens
  in album: Hit Album Vánoční
    type: MusicAlbum
    date published: 2009-10-12
track: Láska Se Narodila O Vánocích
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  explicit: false
  by artist: Jakub Smolik
  in album: Hit Album Vánoční
    type: MusicAlbum
    date published: 2009-10-12
track: Hvězda
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  by artist: Petr Kolář
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    type: MusicAlbum
    date published: 2009-10-12
track: Vánoční
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  by artist: Ales Brichta
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    date published: 2009-10-12
track: Ryba Rybě
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  by artist: Janek Ledecky
  in album: Hit Album Vánoční
    type: MusicAlbum
    date published: 2009-10-12
track: Vánoce Hrajou Glórijá - New Version
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  by artist: Petr Kotvald
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    type: MusicAlbum
    date published: 2009-10-12
track: Noc Králů
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  by artist: Michael Kocáb
  by artist: Petr Kolář
  by artist: Tomas Kympl
  in album: Hit Album Vánoční
    type: MusicAlbum
    date published: 2009-10-12
track: Prosincová
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  by artist: Ivan Hlas
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    type: MusicAlbum
    date published: 2009-10-12
track: A Od Těch Časů
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  explicit: false
  by artist: Janek Ledecky
  in album: Hit Album Vánoční
    type: MusicAlbum
    date published: 2009-10-12
track: Vánoční
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  by artist: Jakub Smolik
  by artist: Viktorka Genzerová
  in album: Hit Album Vánoční
    type: MusicAlbum
    date published: 2009-10-12
track: Táta Přijde Každou Vteřinou
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  duration ms: 235000
  explicit: false
  by artist: Naďa Urbánková
  by artist: Country Beat Jiřího Brabce
  in album: Hit Album Vánoční
    type: MusicAlbum
    date published: 2009-10-12
track: Nejhezčí Dárek
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  explicit: false
  by artist: Jiří Zmožek
  in album: Hit Album Vánoční
    type: MusicAlbum
    date published: 2009-10-12
  isrc code: CZA540905412
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-24T18:38:48+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe86a4783d693b043b3d8a8a8beabde3042cc762febfd50b24b58fcf6262838ce
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956312
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956312
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/6RTlzy7jaEgu3438koO453.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6RTlzy7jaEgu3438koO453
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T05:09:12Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0xe86a4783d693b043b3d8a8a8beabde3042cc762febfd50b24b58fcf6262838ce","isrc":"CZA540905412","name":"Nejhezčí Dárek","registered_at":"2026-06-24T18:38:48Z","spotify_id":"6RTlzy7jaEgu3438koO453","type":"track"}
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
track: Směs Vánočních Koled

OTSVerifyInstructions
type: PropertyValue
value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe86a4783d693b043b3d8a8a8beabde3042cc762febfd50b24b58fcf6262838ce. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6RTlzy7jaEgu3438koO453.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6RTlzy7jaEgu3438koO453.
date published: 2026-07-02T05:09:12Z
text: {"copyright_id":"0xe86a4783d693b043b3d8a8a8beabde3042cc762febfd50b24b58fcf6262838ce","isrc":"CZA540905412","name":"Nejhezčí Dárek","registered_at":"2026-06-24T18:38:48Z","spotify_id":"6RTlzy7jaEgu3438koO453","type":"track"}

Směs Vánočních Koled
type: MusicRecording
duration: PT5M43S
duration ms: 343000
explicit: false
by artist: Conventus Musicorum
in album: Hit Album Vánoční
  type: MusicAlbum
  date published: 2009-10-12

Rockový maratón 1985/1986
type: MusicAlbum
date published: 2023-05-19
track: Nenech si to ujít
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  duration ms: 228400
  explicit: false
  by artist: Moped
  in album: Rockový maratón 1985/1986
    type: MusicAlbum
    date published: 2023-05-19
  isrc code: CZA168500641
track: Slova
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  duration ms: 192506
  explicit: false
  by artist: Odyssea
  in album: Rockový maratón 1985/1986
    type: MusicAlbum
    date published: 2023-05-19
  isrc code: CZA168500557
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
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    value: 2026-06-26T03:20:11+00:00
  additional property: CopyrightChainExplorerURL
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    value: https://explorer.copyrightchains.com/tx/0x8c8edeac6dcf3e7c13deab784aacc4a6c903bef3743a7fe0e2a015bf809e9696
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956351
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/2DlPJi6I4ELchC8CPXG50x.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2DlPJi6I4ELchC8CPXG50x
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T11:38:34Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x8c8edeac6dcf3e7c13deab784aacc4a6c903bef3743a7fe0e2a015bf809e9696. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2DlPJi6I4ELchC8CPXG50x.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2DlPJi6I4ELchC8CPXG50x.
    date published: 2026-07-02T11:38:34Z
track: Obrazy
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  by artist: Natural
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    type: MusicAlbum
    date published: 2023-05-19
track: Mariáš lásky
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  by artist: Pumpa
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    type: MusicAlbum
    date published: 2023-05-19
  isrc code: CZA168500562
track: Pátej den
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  duration: PT4M34S
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  by artist: Yo Yo Band
  in album: Rockový maratón 1985/1986
    type: MusicAlbum
    date published: 2023-05-19
track: Salto Mortale
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  by artist: Dr. Max
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    type: MusicAlbum
    date published: 2023-05-19
track: Soumrak
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  duration: PT5M17S
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  by artist: Futurum
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    type: MusicAlbum
    date published: 2023-05-19
track: O starém kamarádovi
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  by artist: Ivan Hlas
  by artist: Nahlas
  in album: Rockový maratón 1985/1986
    type: MusicAlbum
    date published: 2023-05-19
track: Raděj zpívám blues
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  by artist: Yo Yo Band
  in album: Rockový maratón 1985/1986
    type: MusicAlbum
    date published: 2023-05-19
  isrc code: CZA168600580
track: Tak co vám řekli, pane Händel?
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  by artist: Odyssea
  in album: Rockový maratón 1985/1986
    type: MusicAlbum
    date published: 2023-05-19
  isrc code: CZA168600873
track: Nevadí, nevadí
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  by artist: Moped
  in album: Rockový maratón 1985/1986
    type: MusicAlbum
    date published: 2023-05-19
track: Posvátná Země Nola
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  by artist: Babalet
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    type: MusicAlbum
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track: Zas mě láká slečna A. K.
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  by artist: Daniel Fikejz
  by artist: Combo FH
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    type: MusicAlbum
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track: Osamělý muž
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  by artist: Pumpa
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    type: MusicAlbum
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track: Kámen
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  by artist: Dr. Max
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    type: MusicAlbum
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track: Judáš
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  by artist: Tublatanka
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    type: MusicAlbum
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  isrc code: CZA168600835

Mámo, táto v komoře je krockodýl
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date published: 2021-06-01
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    type: MusicAlbum
    date published: 2021-06-01
track: Král
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  by artist: Matěj Lipský
  by artist: Milan Cais
  by artist: Lubomír Lipský
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    type: MusicAlbum
    date published: 2021-06-01
track: Koláče
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  by artist: Matěj Lipský
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  in album: Mámo, táto v komoře je krockodýl
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    date published: 2021-06-01
track: Princezna
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  by artist: Matěj Lipský
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  by artist: Monika Obermajerová
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    type: MusicAlbum
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track: Žabák
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track: Čert
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track: Krtek
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track: Obr
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track: Loupežník
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track: Hovínko
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track: Pihokaz
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    type: MusicAlbum
    date published: 2021-06-01
track: Dupeme
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    date published: 2021-06-01
track: Poštovský panáček
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track: Kuky
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  by artist: Jiří Macháček
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track: Tancujeme
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    type: MusicAlbum
    date published: 2021-06-01
  isrc code: CZH442100112
track: Dudlík
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  by artist: Vilém Čok
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    type: MusicAlbum
    date published: 2021-06-01
track: Ruce
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  by artist: Milan Cais
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track: Okolo Frýdku cestička - Metalová verze
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Indiáni
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Baterky
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Babka
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Okolo Frýdku cestička - Metalová verze
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Okolo Frýdku cestička - Klasicistní verze
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Ukolébavka
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Hanspaul City
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Půjdem Spolu deštěm, blátem
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Blázinec
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  by artist: Iva Pazderkova
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  by artist: XINDL X
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  by artist: Marek Eben
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Náhrobní Kámen - Live
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Na kolena
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Za Všechny Z Nás
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Povídej - Live
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Ty Se Mi Zdáš - Live
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Možná
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Na slame lezi
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Na slame lezi
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Přátelé
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Az prelezem plot
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isrc code: CZA231600295
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T06:39:59+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd518f1b72ce74226aff6014fabed4e7fd70586e7df5aa6e880e617f4ce07eb8d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/3xTrJw0qe1EI05RGZraJiT.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3xTrJw0qe1EI05RGZraJiT
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd518f1b72ce74226aff6014fabed4e7fd70586e7df5aa6e880e617f4ce07eb8d","isrc":"CZA231600295","name":"Az prelezem plot","registered_at":"2026-06-18T06:39:59Z","spotify_id":"3xTrJw0qe1EI05RGZraJiT","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xd518f1b72ce74226aff6014fabed4e7fd70586e7df5aa6e880e617f4ce07eb8d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3xTrJw0qe1EI05RGZraJiT.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3xTrJw0qe1EI05RGZraJiT.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0xd518f1b72ce74226aff6014fabed4e7fd70586e7df5aa6e880e617f4ce07eb8d","isrc":"CZA231600295","name":"Az prelezem plot","registered_at":"2026-06-18T06:39:59Z","spotify_id":"3xTrJw0qe1EI05RGZraJiT","type":"track"}

Zizen
type: MusicRecording
duration: PT4M11S
duration ms: 251533
explicit: false
by artist: Ivan Hlas
in album: Krasnej dar
  type: MusicAlbum
  date published: 2016-10-21
isrc code: CZA231600296
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T18:18:19+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xad2eb0d3799c4661aa4ea0ca0809b0080e59140f6f4b08effbe0a28036a1c857
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956312
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6dDtR89cBdFb3L8WMgjTSm.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6dDtR89cBdFb3L8WMgjTSm
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xad2eb0d3799c4661aa4ea0ca0809b0080e59140f6f4b08effbe0a28036a1c857. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6dDtR89cBdFb3L8WMgjTSm.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6dDtR89cBdFb3L8WMgjTSm.
  date published: 2026-07-02T05:09:12Z

Bajecna leta pod psa
type: MusicRecording
duration: PT4M35S
duration ms: 275240
explicit: false
by artist: Ivan Hlas
in album: Krasnej dar
  type: MusicAlbum
  date published: 2016-10-21
isrc code: CZA231600297
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T13:38:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6481efb7853df08599c0b7081417993fbf5ccbd3f6f82945c0a1a82103985b01
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6cZnhxsUzWU0Ns0n6i4tdl.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6cZnhxsUzWU0Ns0n6i4tdl
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6481efb7853df08599c0b7081417993fbf5ccbd3f6f82945c0a1a82103985b01","isrc":"CZA231600297","name":"Bajecna leta pod psa","registered_at":"2026-06-20T13:38:27Z","spotify_id":"6cZnhxsUzWU0Ns0n6i4tdl","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x6481efb7853df08599c0b7081417993fbf5ccbd3f6f82945c0a1a82103985b01. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6cZnhxsUzWU0Ns0n6i4tdl.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6cZnhxsUzWU0Ns0n6i4tdl.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x6481efb7853df08599c0b7081417993fbf5ccbd3f6f82945c0a1a82103985b01","isrc":"CZA231600297","name":"Bajecna leta pod psa","registered_at":"2026-06-20T13:38:27Z","spotify_id":"6cZnhxsUzWU0Ns0n6i4tdl","type":"track"}

Ja se neumim smat
type: MusicRecording
duration: PT4M21S
duration ms: 261186
explicit: false
by artist: Ivan Hlas
in album: Krasnej dar
  type: MusicAlbum
  date published: 2016-10-21
isrc code: CZA231600298
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-27T19:18:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfac1cd170d504343bbdb36ecc6ca061e206a15fd90f3a0bd43992e79fabc5ac8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956351
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956351
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/324PDMpzElFqJIaAjVHpBu.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/324PDMpzElFqJIaAjVHpBu
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T11:38:34Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfac1cd170d504343bbdb36ecc6ca061e206a15fd90f3a0bd43992e79fabc5ac8","isrc":"CZA231600298","name":"Ja se neumim smat","registered_at":"2026-06-27T19:18:52Z","spotify_id":"324PDMpzElFqJIaAjVHpBu","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xfac1cd170d504343bbdb36ecc6ca061e206a15fd90f3a0bd43992e79fabc5ac8. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/324PDMpzElFqJIaAjVHpBu.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/324PDMpzElFqJIaAjVHpBu.
  date published: 2026-07-02T11:38:34Z
  text: {"copyright_id":"0xfac1cd170d504343bbdb36ecc6ca061e206a15fd90f3a0bd43992e79fabc5ac8","isrc":"CZA231600298","name":"Ja se neumim smat","registered_at":"2026-06-27T19:18:52Z","spotify_id":"324PDMpzElFqJIaAjVHpBu","type":"track"}

Krasnej dar
type: MusicRecording
duration: PT4M56S
duration ms: 296226
explicit: false
by artist: Ivan Hlas
in album: Krasnej dar
  type: MusicAlbum
  date published: 2016-10-21
isrc code: CZA231600299
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T18:20:56+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf803b2060a6fb7e984d62a471b7405281a1e3dce92871b4223d8f4ae654ddd9b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956312
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/5Dtnj2DHSTGkCnB7OXshJ7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5Dtnj2DHSTGkCnB7OXshJ7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf803b2060a6fb7e984d62a471b7405281a1e3dce92871b4223d8f4ae654ddd9b","isrc":"CZA231600299","name":"Krasnej dar","registered_at":"2026-06-23T18:20:56Z","spotify_id":"5Dtnj2DHSTGkCnB7OXshJ7","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xf803b2060a6fb7e984d62a471b7405281a1e3dce92871b4223d8f4ae654ddd9b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5Dtnj2DHSTGkCnB7OXshJ7.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5Dtnj2DHSTGkCnB7OXshJ7.
  date published: 2026-07-02T05:09:12Z
  text: {"copyright_id":"0xf803b2060a6fb7e984d62a471b7405281a1e3dce92871b4223d8f4ae654ddd9b","isrc":"CZA231600299","name":"Krasnej dar","registered_at":"2026-06-23T18:20:56Z","spotify_id":"5Dtnj2DHSTGkCnB7OXshJ7","type":"track"}

Treba jo
type: MusicRecording
duration: PT4M18S
duration ms: 258800
explicit: false
by artist: Ivan Hlas
in album: Krasnej dar
  type: MusicAlbum
  date published: 2016-10-21
isrc code: CZA231600300

Evangelium
type: MusicRecording
duration: PT3M50S
duration ms: 230266
explicit: false
by artist: Ivan Hlas
in album: Krasnej dar
  type: MusicAlbum
  date published: 2016-10-21
isrc code: CZA231600301

Poezie
type: MusicRecording
duration: PT3M47S
duration ms: 227706
explicit: false
by artist: Ivan Hlas
in album: Krasnej dar
  type: MusicAlbum
  date published: 2016-10-21
isrc code: CZA231600302

Pod zrcadlem
type: MusicRecording
duration: PT5M4S
duration ms: 304306
explicit: false
by artist: Ivan Hlas
in album: Krasnej dar
  type: MusicAlbum
  date published: 2016-10-21
isrc code: CZA231600303

Nadrazni blues
type: MusicRecording
duration: PT4M28S
duration ms: 268973
explicit: false
by artist: Ivan Hlas
in album: Krasnej dar
  type: MusicAlbum
  date published: 2016-10-21
isrc code: CZA231600304

Pro Elisku
type: MusicRecording
duration: PT3M16S
duration ms: 196325
explicit: false
by artist: Ivan Hlas
in album: Vitr ve vlasech
  type: MusicAlbum
  date published: 2014-09-08
isrc code: CZA231400169