Jen
type: MusicGroup
popularity: 9
followers: 816
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xca342e6084b7aa800fed655566f26fee53c59831bf19c8c5354aa35d7e57861c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b794b34a-c541-40d1-84c0-1013536c59fe.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b794b34a-c541-40d1-84c0-1013536c59fe.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b794b34a-c541-40d1-84c0-1013536c59fe
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca342e6084b7aa800fed655566f26fee53c59831bf19c8c5354aa35d7e57861c. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b794b34a-c541-40d1-84c0-1013536c59fe.json and https://artists.proofprofile.net/proofs/artist/b794b34a-c541-40d1-84c0-1013536c59fe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
album: Stoupáš
  type: MusicAlbum
  date published: 2018-10-08
album: Optický klam
  type: MusicAlbum
  date published: 2018-11-29
album: Vyprávím
  type: MusicAlbum
  date published: 2018-12-15
album: Srdeční zatmění (akustická verze)
  type: MusicAlbum
  date published: 2019-02-03
album: Stories
  type: MusicAlbum
  date published: 2019-03-31
album: Pavoučí žena
  type: MusicAlbum
  date published: 2019-07-16
album: Dýchat
  type: MusicAlbum
  date published: 2019-08-07
  track: Dýchat
    type: MusicRecording
    duration: PT3M0S
    duration ms: 180825
    explicit: false
    by artist: Jen
    in album: Dýchat
      type: MusicAlbum
      date published: 2019-08-07
    isrc code: QZFZ21916656
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T17:21:25+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xcc10d5cc66985bbee1a79fde7491a471597722e1fc85b69f22727b34628c3fd1
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959043
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959043
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ21916656
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T20:22:47Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc10d5cc66985bbee1a79fde7491a471597722e1fc85b69f22727b34628c3fd1. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:22:47Z), 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/QZFZ21916656.
      date published: 2026-07-21T20:22:47Z
    audio: Dýchat
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 108.983
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.683
      additional property: Energy
        type: PropertyValue
        value: 0.886
      additional property: Speechiness
        type: PropertyValue
        value: 0.025
      additional property: Acousticness
        type: PropertyValue
        value: 0.01
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.121
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.163
      additional property: Loudness (dB)
        type: PropertyValue
        value: -2.596
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 1989
  type: MusicAlbum
  date published: 2019-11-06
album: Zapomenout
  type: MusicAlbum
  date published: 2019-12-20
album: Nepůjdem spát
  type: MusicAlbum
  date published: 2020-05-26
  track: Nepůjdem spát
    type: MusicRecording
    duration: PT3M24S
    duration ms: 204590
    explicit: false
    by artist: Jen
    in album: Nepůjdem spát
      type: MusicAlbum
      date published: 2020-05-26
    isrc code: QZES62095576
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T04:48:04+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x4d553184345c7f2711bcc2dc434b0c24efaa0c56ec74774a2de0357eaabfbb70
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956656
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956656
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES62095576
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T14:03:39Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d553184345c7f2711bcc2dc434b0c24efaa0c56ec74774a2de0357eaabfbb70. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZES62095576.
      date published: 2026-07-04T14:03:39Z
    audio: Nepůjdem spát
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 122.007
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Nepůjdem spát (Jean Luc remix)
album: Silnější
album: Silnější (akusticky)
album: Kolik zbývá
album: Poutat
album: Nevydejchám tě
album: Budeš tam sedět
album: Víc
album: Nelituju
album: Něco za něco

Danceability
type: PropertyValue
value: 0.674

Energy
type: PropertyValue
value: 0.723

Speechiness
type: PropertyValue
value: 0.042

Acousticness
type: PropertyValue
value: 0.003

Instrumentalness
type: PropertyValue
value: 0.003

Liveness
type: PropertyValue
value: 0.335

Valence (Positivity)
type: PropertyValue
value: 0.274

Loudness (dB)
type: PropertyValue
value: -5.777

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Major

Nepůjdem spát (Jean Luc remix)
type: MusicAlbum
date published: 2020-07-31

Silnější
type: MusicAlbum
date published: 2020-10-04

Silnější (akusticky)
type: MusicAlbum
date published: 2020-12-15

Kolik zbývá
type: MusicAlbum
date published: 2021-03-11

Poutat
type: MusicAlbum
date published: 2021-06-02

Nevydejchám tě
type: MusicAlbum
date published: 2021-12-23

Budeš tam sedět
type: MusicAlbum
date published: 2022-03-02

Víc
type: MusicAlbum
date published: 2022-09-22

Nelituju
type: MusicAlbum
date published: 2023-09-08

Něco za něco
type: MusicAlbum
date published: 2025-09-15