Jitka Vrbová
type: MusicGroup
popularity: 15
followers: 1141
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6785ef4e9705c7eeffc079637d9f3e1b52dcc1dcc71c6bf776f613806954452f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953746
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953746
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a4164692-24fd-4f71-988d-0ebdf6a58242.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a4164692-24fd-4f71-988d-0ebdf6a58242.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a4164692-24fd-4f71-988d-0ebdf6a58242
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T05:25:34Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6785ef4e9705c7eeffc079637d9f3e1b52dcc1dcc71c6bf776f613806954452f","name":"Jitka Vrbová","registered_at":"2026-06-14T21:45:09Z","symbol":"NIM0585783","token_address":"0xb6bb1df4e434a1edeec1b43c50ce9f4d0cb21168","type":"artist","uuid":"a4164692-24fd-4f71-988d-0ebdf6a58242"}
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 0x6785ef4e9705c7eeffc079637d9f3e1b52dcc1dcc71c6bf776f613806954452f. Chain 2 (Bitcoin): anchored in block 953746 (2026-06-15T05:25:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a4164692-24fd-4f71-988d-0ebdf6a58242.json and https://artists.proofprofile.net/proofs/artist/a4164692-24fd-4f71-988d-0ebdf6a58242.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T05:25:34Z
  text: {"copyright_id":"0x6785ef4e9705c7eeffc079637d9f3e1b52dcc1dcc71c6bf776f613806954452f","name":"Jitka Vrbová","registered_at":"2026-06-14T21:45:09Z","symbol":"NIM0585783","token_address":"0xb6bb1df4e434a1edeec1b43c50ce9f4d0cb21168","type":"artist","uuid":"a4164692-24fd-4f71-988d-0ebdf6a58242"}
album: Mini Jazz Klub 37
  type: MusicAlbum
  date published: 1981
album: Blues, které znáš
  type: MusicAlbum
  date published: 1986
album: When It's Sleepy Time
  type: MusicAlbum
  date published: 1989
album: Co Nevidět Se Sejdem
  type: MusicAlbum
  date published: 1992-09-06
album: Washboard Banjo Band, Jitka Vrbová A František Nedvěd
  type: MusicAlbum
  date published: 1994-01-01
  track: Hospoda / Most Přes Řeku Kwai / Pochod Amerických Námořníků
    type: MusicRecording
    duration: PT4M17S
    duration ms: 257200
    explicit: false
    by artist: Jitka Vrbová
    in album: Washboard Banjo Band, Jitka Vrbová A František Nedvěd
      type: MusicAlbum
      date published: 1994-01-01
    isrc code: CZA169400818
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-07T04:43:54+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x664afa7bb534d1e711eea36df9919a038cdc7cc64b9ecf0e4e799d5bfdaee7c9
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957118
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957118
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA169400818
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-08T03:20:19Z
    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 0x664afa7bb534d1e711eea36df9919a038cdc7cc64b9ecf0e4e799d5bfdaee7c9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/CZA169400818.
      date published: 2026-07-08T03:20:19Z
    audio: Hospoda / Most Přes Řeku Kwai / Pochod Amerických Námořníků
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 129.117
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.649
      additional property: Energy
        type: PropertyValue
        value: 0.64
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0.308
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.194
      additional property: Liveness
        type: PropertyValue
        value: 0.069
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.97
      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.634
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Swany River
    type: MusicRecording
    duration: PT3M21S
    duration ms: 201306
    explicit: false
    by artist: Jitka Vrbová
    in album: Washboard Banjo Band, Jitka Vrbová A František Nedvěd
      type: MusicAlbum
      date published: 1994-01-01
    isrc code: CZA169400824
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-08-01T00:15:35+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x06f3756453a8f5ccbf048a73d0135a4c2d64580d30990966038fcdf06e3e222e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 960489
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/960489
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA169400824
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-08-01T00:40:43Z
    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 0x06f3756453a8f5ccbf048a73d0135a4c2d64580d30990966038fcdf06e3e222e. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/CZA169400824.
      date published: 2026-08-01T00:40:43Z
    audio: Swany River
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 127.288
      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: 0.666
      additional property: Energy
        type: PropertyValue
        value: 0.558
      additional property: Speechiness
        type: PropertyValue
        value: 0.047
      additional property: Acousticness
        type: PropertyValue
        value: 0.173
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Knížka Z Dětství
album: Tam Pod Nebeskou Bání
album: Pikovický Blues (Písničky Standy Chmelíka)
album: Čajová růže

Instrumentalness
type: PropertyValue
value: 0.868

Liveness
type: PropertyValue
value: 0.227

Valence (Positivity)
type: PropertyValue
value: 0.963

Loudness (dB)
type: PropertyValue
value: -14.756

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Major

Knížka Z Dětství
type: MusicAlbum
date published: 1994-11-19

Tam Pod Nebeskou Bání
type: MusicAlbum
date published: 2004-07-20

Pikovický Blues (Písničky Standy Chmelíka)
type: MusicAlbum
date published: 2009-07-26

Čajová růže
type: MusicAlbum
date published: 2013-11-09