Barbara Chybova
type: MusicGroup
popularity: 5
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x00ce66d63411bdba5bf7ea48e1cadbb5b592e216fae2673e10e93b675f5b6db9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953864
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953864
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0479d037-faaa-4835-967c-fd0b9f7873fc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0479d037-faaa-4835-967c-fd0b9f7873fc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0479d037-faaa-4835-967c-fd0b9f7873fc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T00:30:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x00ce66d63411bdba5bf7ea48e1cadbb5b592e216fae2673e10e93b675f5b6db9","name":"Barbara Chybova","registered_at":"2026-06-15T15:09:23Z","symbol":"NIM0746760","token_address":"0x67cf9fecf7f7fe4579b8c3910aa5cafb132ef477","type":"artist","uuid":"0479d037-faaa-4835-967c-fd0b9f7873fc"}
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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ce66d63411bdba5bf7ea48e1cadbb5b592e216fae2673e10e93b675f5b6db9. Chain 2 (Bitcoin): anchored in block 953864 (2026-06-16T00:30:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0479d037-faaa-4835-967c-fd0b9f7873fc.json and https://artists.proofprofile.net/proofs/artist/0479d037-faaa-4835-967c-fd0b9f7873fc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T00:30:31Z
  text: {"copyright_id":"0x00ce66d63411bdba5bf7ea48e1cadbb5b592e216fae2673e10e93b675f5b6db9","name":"Barbara Chybova","registered_at":"2026-06-15T15:09:23Z","symbol":"NIM0746760","token_address":"0x67cf9fecf7f7fe4579b8c3910aa5cafb132ef477","type":"artist","uuid":"0479d037-faaa-4835-967c-fd0b9f7873fc"}
track: Opilecka
  type: MusicRecording
  duration: PT1M39S
  duration ms: 99637
  explicit: false
  by artist: Milan Peroutka
  by artist: Barbara Chybova
  by artist: Sbor muzikalu Krysar 2018
  in album: Krysar 1996 - 2018
    type: MusicAlbum
    date published: 2018-03-30
  isrc code: CZA231800106
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-24T13:11:32+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x13128f7cd30a5fc0f02c193ee29463d48579563e44819e9f7876f2c96cf4faec
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956304
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA231800106
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  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 0x13128f7cd30a5fc0f02c193ee29463d48579563e44819e9f7876f2c96cf4faec. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA231800106.
    date published: 2026-07-02T03:55:08Z
  audio: Opilecka
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 102.754
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.534
    additional property: Energy
      type: PropertyValue
      value: 0.84
    additional property: Speechiness
      type: PropertyValue
      value: 0.11
    additional property: Acousticness
      type: PropertyValue
      value: 0.507
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.12
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.721
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.577
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Dechovka
  type: MusicRecording
  duration: PT2M57S
  duration ms: 177247
  explicit: false
  by artist: Barbara Chybova
  by artist: Milan Peroutka
  by artist: Premysl Palek
  in album: Krysar 1996 - 2018
    type: MusicAlbum
    date published: 2018-03-30
  isrc code: CZA231800111
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-29T11:08:28+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x7d2721f6a0549b968d5e3c6190e6d82551a0fdcedf224734b0c5bc2fd46f1038
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960099
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960099
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA231800111
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-29T11:30:20Z
  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 0x7d2721f6a0549b968d5e3c6190e6d82551a0fdcedf224734b0c5bc2fd46f1038. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA231800111.
    date published: 2026-07-29T11:30:20Z
  audio: Dechovka
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 145.956
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.672
    additional property: Energy
      type: PropertyValue
      value: 0.611
    additional property: Speechiness
      type: PropertyValue
      value: 0.147
    additional property: Acousticness
      type: PropertyValue
      value: 0.685
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.062
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.538
    additional property: Loudness (dB)
    additional property: Key Name
    additional property: Mode Name
track: Pravo je sila

Loudness (dB)
type: PropertyValue
value: -13.506

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Major

Pravo je sila
type: MusicRecording
duration: PT4M43S
duration ms: 283745
explicit: false
by artist: Milan Peroutka
by artist: Barbara Chybova
by artist: Daniel Sobotka
by artist: Pavel Dytrt
by artist: Jan Zazvurek
by artist: Sbor muzikalu Krysar 2018
in album: Krysar 1996 - 2018
  type: MusicAlbum
  date published: 2018-03-30
isrc code: CZA231800119
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T19:41:54+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3d8f45e19f0440a1123bfce67934d3e6e127814da63027b0aafee3cf34eca770
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA231800119
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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 0x3d8f45e19f0440a1123bfce67934d3e6e127814da63027b0aafee3cf34eca770. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA231800119.
  date published: 2026-07-02T03:55:08Z
audio: Pravo je sila
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 140.413
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.592
  additional property: Energy
    type: PropertyValue
    value: 0.66
  additional property: Speechiness
    type: PropertyValue
    value: 0.065
  additional property: Acousticness
    type: PropertyValue
    value: 0.096
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.128
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.51
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.201
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor