Jaroslav Hašek
type: MusicGroup
description: Jaroslav Hašek (; 3 April 1883 – 3 January 1923) was a Czech writer, humorist, satirist, journalist, bohemian, first anarchist and then communist, and commissar of the Red Army against the Czechoslova
popularity: 28
followers: 154
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSProofURL
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  value: https://artists.proofprofile.net/proofs/artist/1ad65023-e315-4a55-ad5d-186336699d01.ots
additional property: OTSRecordURL
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  value: https://artists.proofprofile.net/proofs/artist/1ad65023-e315-4a55-ad5d-186336699d01.json
additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb25d7148f6a2d9773eb88c8044b7027f59e140dfbba1cc22a656d9296ec32910. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1ad65023-e315-4a55-ad5d-186336699d01.json and https://artists.proofprofile.net/proofs/artist/1ad65023-e315-4a55-ad5d-186336699d01.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xb25d7148f6a2d9773eb88c8044b7027f59e140dfbba1cc22a656d9296ec32910","name":"Jaroslav Hašek","registered_at":"2026-06-11T13:29:32Z","symbol":"NIM0035754","token_address":"0x08726b0faf800c968382ea4f5ffda849f85f33be","type":"artist","uuid":"1ad65023-e315-4a55-ad5d-186336699d01"}
album: Osudy dobrého vojáka Švejka – V zázemí (1. díl)
  type: MusicAlbum
  date published: 1921
  track: Chapter 1 & Chapter 2.1 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
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    duration: PT3M8S
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    by artist: Jaroslav Hašek
    in album: Osudy dobrého vojáka Švejka – V zázemí (1. díl)
      type: MusicAlbum
      date published: 1921
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    additional property: CopyrightStatus
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      value: https://blockstream.info/api/block-height/958590
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP80479861
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T17:28:56Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad62c4d15d9875c82c7ad355b0fcf27d718a063a1fd5cd670142e572a6215053. Chain 2 (Bitcoin): anchored in block 958590 (2026-07-18T17:28:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP80479861 — a six-check JSON result.
      date published: 2026-07-18T17:28:56Z
    audio: Chapter 1 & Chapter 2.1 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
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      additional property: Danceability
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      additional property: Liveness
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      additional property: Loudness (dB)
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  track: Chapter 2.2 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
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    duration: PT3M9S
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    by artist: Jaroslav Hašek
    in album: Osudy dobrého vojáka Švejka – V zázemí (1. díl)
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      date published: 1921
    isrc code: DEVP80479862
    additional property: CopyrightID
    additional property: CopyrightStatus
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      value: registered
    additional property: CopyrightRegisteredAt
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      value: 2026-07-22T14:53:45+00:00
    additional property: CopyrightChainExplorerURL
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      value: https://explorer.copyrightchains.com/tx/0xcf1c205a1749a18bdba3655fb03eab24c06b812ad997d7a661124d9ab1a2a232
    additional property: OTSHash
    additional property: OTSBitcoinBlock
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP80479862
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T15:38:35Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf1c205a1749a18bdba3655fb03eab24c06b812ad997d7a661124d9ab1a2a232. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP80479862 — a six-check JSON result.
      date published: 2026-07-22T15:38:35Z
    audio: Chapter 2.2 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
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      additional property: Danceability
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      additional property: Energy
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      additional property: Speechiness
        type: PropertyValue
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      additional property: Acousticness
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      additional property: Valence (Positivity)
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  track: Chapter 2.3 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
  track: Chapter 2.4 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
  track: Chapter 2.5 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
  track: Chapter 2.6 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
  track: Chapter 2.7 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
  track: Chapter 2.9 & Chapter 3.1 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
  track: Chapter 3.2 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
  track: Chapter 3.4 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
  track: Chapter 3.5 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
  track: Chapter 3.7 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
  track: Chapter 4.4 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
  track: Chapter 5.3 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
  track: Chapter 5.5 & Chapter 6.1 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
  track: Chapter 6.4 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
  track: Chapter 7.2 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
  track: Chapter 7.3 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
  track: Chapter 7.5 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
  track: Chapter 8.4 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
album: Osudy dobrého vojáka Švejka – Na frontě (2. díl)
album: Osudy dobrého vojáka Švejka – Slavný výprask (3. díl)
album: Osudy dobrého vojáka Švejka – Pokračování slavného výprasku (4. díl)
album: Die Abenteuer des braven Soldaten Schwejk
album: Osudy dobrého vojáka Švejka

Loudness (dB)
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value: -16.142

Key Name
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value: B

Mode Name
type: PropertyValue
value: Major

Chapter 2.3 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
type: MusicRecording
duration: PT3M30S
duration ms: 210000
explicit: false
by artist: Jaroslav Hašek
in album: Osudy dobrého vojáka Švejka – V zázemí (1. díl)
  type: MusicAlbum
  date published: 1921
isrc code: DEVP80479863
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-18T23:18:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9ffab3471375d1c46e72d60fd6651fda9d635860d462cee0a8d5ad7a58bf6211
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958627
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958627
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP80479863
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-18T23:33:54Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ffab3471375d1c46e72d60fd6651fda9d635860d462cee0a8d5ad7a58bf6211. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP80479863 — a six-check JSON result.
  date published: 2026-07-18T23:33:54Z
audio: Chapter 2.3 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
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  additional property: Tempo (BPM)
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    value: 130.211
  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.711
  additional property: Energy
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    value: 0.307
  additional property: Speechiness
    type: PropertyValue
    value: 0.956
  additional property: Acousticness
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.203
  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Mode Name
    type: PropertyValue
    value: Minor

Chapter 2.4 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
type: MusicRecording
duration: PT3M6S
duration ms: 186000
explicit: false
by artist: Jaroslav Hašek
in album: Osudy dobrého vojáka Švejka – V zázemí (1. díl)
  type: MusicAlbum
  date published: 1921
isrc code: DEVP80479864
additional property: CopyrightID
additional property: CopyrightStatus
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  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-07-04T09:18:35+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x34094cc96b68b0edf01fb1de836fc51a4ccafbf7ff8915ba156d9baff5c1e081
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956634
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956634
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP80479864
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-04T10:04:33Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34094cc96b68b0edf01fb1de836fc51a4ccafbf7ff8915ba156d9baff5c1e081. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP80479864 — a six-check JSON result.
  date published: 2026-07-04T10:04:33Z
audio: Chapter 2.4 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
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  additional property: Tempo (BPM)
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  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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Chapter 2.5 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
type: MusicRecording
duration: PT3M5S
duration ms: 185700
explicit: false
by artist: Jaroslav Hašek
in album: Osudy dobrého vojáka Švejka – V zázemí (1. díl)
  type: MusicAlbum
  date published: 1921
isrc code: DEVP80479865
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-18T23:06:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x54c2bd5cdc12cf3d838dea6e3c6419a119dddaa304fb9164a505ef7957a20a25
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 958627
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958627
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP80479865
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-18T23:33:54Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54c2bd5cdc12cf3d838dea6e3c6419a119dddaa304fb9164a505ef7957a20a25. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP80479865 — a six-check JSON result.
  date published: 2026-07-18T23:33:54Z
audio: Chapter 2.5 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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    value: 0.746
  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Mode Name
    type: PropertyValue
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Chapter 2.6 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
type: MusicRecording
duration: PT3M7S
duration ms: 187000
explicit: false
by artist: Jaroslav Hašek
in album: Osudy dobrého vojáka Švejka – V zázemí (1. díl)
  type: MusicAlbum
  date published: 1921
isrc code: DEVP80479866
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xf819ec7b279d461c64138f2665d446c84741ffe3aeaa0304c5ee5f031aefed9c
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 956474
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956474
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP80479866
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-03T08:56:35Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf819ec7b279d461c64138f2665d446c84741ffe3aeaa0304c5ee5f031aefed9c. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP80479866 — a six-check JSON result.
  date published: 2026-07-03T08:56:35Z
audio: Chapter 2.6 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
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Chapter 2.7 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
type: MusicRecording
duration: PT3M14S
duration ms: 194200
explicit: false
by artist: Jaroslav Hašek
in album: Osudy dobrého vojáka Švejka – V zázemí (1. díl)
  type: MusicAlbum
  date published: 1921
isrc code: DEVP80479867
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x25035b4777882ff4db7b28b1a515f3cbfb2cccc3654eb8ed00d9c41ecefad5cc
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 959001
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/959001
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP80479867
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-21T11:41:42Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25035b4777882ff4db7b28b1a515f3cbfb2cccc3654eb8ed00d9c41ecefad5cc. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP80479867 — a six-check JSON result.
  date published: 2026-07-21T11:41:42Z
audio: Chapter 2.7 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
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Chapter 2.9 & Chapter 3.1 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
type: MusicRecording
duration: PT3M9S
duration ms: 189041
explicit: false
by artist: Jaroslav Hašek
in album: Osudy dobrého vojáka Švejka – V zázemí (1. díl)
  type: MusicAlbum
  date published: 1921
isrc code: DEVP80479869
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-21T06:06:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x746814ef28655ed6c47d3c37e3f4ca61f0782f6023d1594ed302559dbf7206c8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958977
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958977
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP80479869
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-21T06:27:23Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x746814ef28655ed6c47d3c37e3f4ca61f0782f6023d1594ed302559dbf7206c8. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP80479869 — a six-check JSON result.
  date published: 2026-07-21T06:27:23Z
audio: Chapter 2.9 & Chapter 3.1 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
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Chapter 3.2 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
type: MusicRecording
duration: PT3M20S
duration ms: 200300
explicit: false
by artist: Jaroslav Hašek
in album: Osudy dobrého vojáka Švejka – V zázemí (1. díl)
  type: MusicAlbum
  date published: 1921
isrc code: DEVP80479870
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-07-19T19:59:02+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x06f310458b840fc0189ceeb2ec5bcd4368a31223d25f50ec9f0a98f6c081e20c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958775
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958775
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP80479870
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-19T20:13:58Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06f310458b840fc0189ceeb2ec5bcd4368a31223d25f50ec9f0a98f6c081e20c. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP80479870 — a six-check JSON result.
  date published: 2026-07-19T20:13:58Z
audio: Chapter 3.2 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
    value: 0.684
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.959
  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.213
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.496
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.063
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Chapter 3.4 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
type: MusicRecording
duration: PT3M19S
duration ms: 199200
explicit: false
by artist: Jaroslav Hašek
in album: Osudy dobrého vojáka Švejka – V zázemí (1. díl)
  type: MusicAlbum
  date published: 1921
isrc code: DEVP80479872
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958792
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958792
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP80479872
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-19T22:55:52Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d76c576608052a1cc04fd09a4ae4b37665019f315a5c9ac81743c0121d3b55a. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP80479872 — a six-check JSON result.
  date published: 2026-07-19T22:55:52Z
audio: Chapter 3.4 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
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  additional property: Tempo (BPM)
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  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 1
  additional property: Danceability
    type: PropertyValue
    value: 0.649
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.95
  additional property: Acousticness
    type: PropertyValue
    value: 0.662
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.667
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.613
  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Mode Name
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Chapter 3.5 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
type: MusicRecording
duration: PT3M11S
duration ms: 191200
explicit: false
by artist: Jaroslav Hašek
in album: Osudy dobrého vojáka Švejka – V zázemí (1. díl)
  type: MusicAlbum
  date published: 1921
isrc code: DEVP80479873
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956826
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956826
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP80479873
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T19:27:56Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf52bc31afee9cf7db27c45c22d4d4119542b09892613407dd33507ca92132e0. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP80479873 — a six-check JSON result.
  date published: 2026-07-05T19:27:56Z
audio: Chapter 3.5 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
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    value: 1
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    type: PropertyValue
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  additional property: Danceability
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  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
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Chapter 3.7 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
type: MusicRecording
duration: PT3M10S
duration ms: 190700
explicit: false
by artist: Jaroslav Hašek
in album: Osudy dobrého vojáka Švejka – V zázemí (1. díl)
  type: MusicAlbum
  date published: 1921
isrc code: DEVP80479875
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 956826
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956826
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP80479875
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T19:27:56Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-05T19:27:56Z
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Chapter 4.4 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-21T03:51:22Z
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Chapter 5.3 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-21T13:14:05Z
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Chapter 5.5 & Chapter 6.1 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-19T21:08:39Z
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Chapter 6.4 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-22T12:33:25Z
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Chapter 7.2 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-05T01:12:41Z
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Chapter 7.3 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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Chapter 7.5 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
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audio: Chapter 7.5 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
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Chapter 8.4 - Osudy dobrého vojáka Švejka – V zázemí (1. díl)
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Osudy dobrého vojáka Švejka – Na frontě (2. díl)
type: MusicAlbum
date published: 1922

Osudy dobrého vojáka Švejka – Slavný výprask (3. díl)
type: MusicAlbum
date published: 1922

Osudy dobrého vojáka Švejka – Pokračování slavného výprasku (4. díl)
type: MusicAlbum
date published: 1923

Die Abenteuer des braven Soldaten Schwejk
type: MusicAlbum
date published: 2017-02-28

Osudy dobrého vojáka Švejka
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date published: 2024-11-14