Jan Pravda
type: MusicGroup
genre: gabber
genre: hard techno
genre: tekno
popularity: 3
followers: 206
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x744b0248f6f129c029b10ba80c8057be9762511464788b4ecc97b03480c92ac6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953918
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953918
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1ab401f8-ea51-4b27-ae24-71d4a6a58d08.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1ab401f8-ea51-4b27-ae24-71d4a6a58d08.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1ab401f8-ea51-4b27-ae24-71d4a6a58d08
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T08:55:04Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x744b0248f6f129c029b10ba80c8057be9762511464788b4ecc97b03480c92ac6","name":"Jan Pravda","registered_at":"2026-06-15T22:52:59Z","symbol":"NIM0857366","token_address":"0x688e879d473b5f3bedcf63193ca553b92ec37cfc","type":"artist","uuid":"1ab401f8-ea51-4b27-ae24-71d4a6a58d08"}
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 0x744b0248f6f129c029b10ba80c8057be9762511464788b4ecc97b03480c92ac6. Chain 2 (Bitcoin): anchored in block 953918 (2026-06-16T08:55:04Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1ab401f8-ea51-4b27-ae24-71d4a6a58d08.json and https://artists.proofprofile.net/proofs/artist/1ab401f8-ea51-4b27-ae24-71d4a6a58d08.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T08:55:04Z
  text: {"copyright_id":"0x744b0248f6f129c029b10ba80c8057be9762511464788b4ecc97b03480c92ac6","name":"Jan Pravda","registered_at":"2026-06-15T22:52:59Z","symbol":"NIM0857366","token_address":"0x688e879d473b5f3bedcf63193ca553b92ec37cfc","type":"artist","uuid":"1ab401f8-ea51-4b27-ae24-71d4a6a58d08"}
album: Time Pop
  type: MusicAlbum
  date published: 2003-06-09
album: ABC
  type: MusicAlbum
  date published: 2007-08-24
album: Unreleased Tracks
  type: MusicAlbum
  date published: 2009-04-22
album: Afterprayer
  type: MusicAlbum
  date published: 2009-08-17
album: Silence
  type: MusicAlbum
  date published: 2010-07-30
album: Afterprayer Remixes
  type: MusicAlbum
  date published: 2011-03-21
album: Pravda's Kiss
  type: MusicAlbum
  date published: 2017-12-29
album: Classics Vol. II
  type: MusicAlbum
  date published: 2018-03-21
album: Buddha Bowl
  type: MusicAlbum
  date published: 2019-12-31
album: Rainy Days
  type: MusicAlbum
  date published: 2020-03-11
album: Pravda Trax
  type: MusicAlbum
  date published: 2020-04-03
album: Herzschrittmacher (Remastered)
  type: MusicAlbum
  date published: 2021-05-19
  track: Herzschrittmacher - Remastered
    type: MusicRecording
    duration: PT4M6S
    duration ms: 246000
    explicit: false
    by artist: Jan Pravda
    in album: Herzschrittmacher (Remastered)
      type: MusicAlbum
      date published: 2021-05-19
    genre: gabber
    genre: hard techno
    genre: tekno
    isrc code: DEAR42143545
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T15:21:16+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x99a83419fd5297a94abd3d5f734ef3b458271704043cf61ca5b6c32540487285
    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/DEAR42143545
    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 0x99a83419fd5297a94abd3d5f734ef3b458271704043cf61ca5b6c32540487285. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAR42143545.
      date published: 2026-07-05T19:27:56Z
    audio: Herzschrittmacher - Remastered
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 184.967
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.561
      additional property: Energy
        type: PropertyValue
        value: 0.55
      additional property: Speechiness
        type: PropertyValue
        value: 0.171
      additional property: Acousticness
        type: PropertyValue
        value: 0.04
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.922
      additional property: Liveness
        type: PropertyValue
        value: 0.077
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.14
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.173
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Caravan of House
  type: MusicAlbum
  date published: 2024-11-15
track: Pravda Interrupt - Original
  type: MusicRecording
  duration: PT3M54S
  duration ms: 234000
  explicit: false
  by artist: Jan Pravda
  in album: Classic Collection Vol. 1
    type: MusicAlbum
    date published: 1995
  isrc code: DECY51171010
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T22:26:49+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe87752c1952009fdd3ceba626c51deecdc7ed8e4765a052a029f14a74ea21a5e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DECY51171010
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Pravda Interrupt - Original

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe87752c1952009fdd3ceba626c51deecdc7ed8e4765a052a029f14a74ea21a5e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DECY51171010.
date published: 2026-07-08T03:22:41Z

Pravda Interrupt - Original
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 162.11
additional property: Musical Key
  type: PropertyValue
  value: 9
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.511
additional property: Energy
  type: PropertyValue
  value: 0.788
additional property: Speechiness
  type: PropertyValue
  value: 0.049
additional property: Acousticness
  type: PropertyValue
  value: 0.002
additional property: Instrumentalness
  type: PropertyValue
  value: 0.887
additional property: Liveness
  type: PropertyValue
  value: 0.145
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.11
additional property: Loudness (dB)
  type: PropertyValue
  value: -17.701
additional property: Key Name
  type: PropertyValue
  value: A
additional property: Mode Name
  type: PropertyValue
  value: Major