Popek & EW
type: MusicGroup
popularity: 14
followers: 1220
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9b0a32d0b7291b7e004eded53162e5922fee3c665c2471b1c6b075a2fb4a808e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953817
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953817
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fa885bde-ae31-45df-98be-1b18bb0e2273.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fa885bde-ae31-45df-98be-1b18bb0e2273.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fa885bde-ae31-45df-98be-1b18bb0e2273
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T18:10:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9b0a32d0b7291b7e004eded53162e5922fee3c665c2471b1c6b075a2fb4a808e","name":"Popek & EW","registered_at":"2026-06-15T06:45:55Z","symbol":"NIM0714924","token_address":"0x849e999b91c78e54ac7c0d4722f7a0f96351e40f","type":"artist","uuid":"fa885bde-ae31-45df-98be-1b18bb0e2273"}
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 0x9b0a32d0b7291b7e004eded53162e5922fee3c665c2471b1c6b075a2fb4a808e. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fa885bde-ae31-45df-98be-1b18bb0e2273.json and https://artists.proofprofile.net/proofs/artist/fa885bde-ae31-45df-98be-1b18bb0e2273.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T19:59:56Z
  text: {"copyright_id":"0x9b0a32d0b7291b7e004eded53162e5922fee3c665c2471b1c6b075a2fb4a808e","name":"Popek & EW","registered_at":"2026-06-15T06:45:55Z","symbol":"NIM0714924","token_address":"0x849e999b91c78e54ac7c0d4722f7a0f96351e40f","type":"artist","uuid":"fa885bde-ae31-45df-98be-1b18bb0e2273"}
album: Muzyka w moim sercu
  type: MusicAlbum
  date published: 2017-04-05
album: Za tych co nie mogą bo w dupie wszywka
  type: MusicAlbum
  date published: 2017-04-18
album: Spełniajcie swoje marzenia
  type: MusicAlbum
  date published: 2017-04-18
  track: Spełniajcie swoje marzenia
    type: MusicRecording
    duration: PT3M32S
    duration ms: 212027
    explicit: false
    by artist: Popek & EW
    in album: Spełniajcie swoje marzenia
      type: MusicAlbum
      date published: 2017-04-18
    isrc code: PLF241603597
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T14:16:09+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x640dde9eb42ea6fb2b11592d1c1c718246777926ceaff8a965c6f3d9aec147d4
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958905
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958905
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLF241603597
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T16:14:34Z
    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 0x640dde9eb42ea6fb2b11592d1c1c718246777926ceaff8a965c6f3d9aec147d4. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/PLF241603597.
      date published: 2026-07-20T16:14:34Z
    audio: Spełniajcie swoje marzenia
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 179.637
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.45
      additional property: Energy
        type: PropertyValue
        value: 0.662
      additional property: Speechiness
        type: PropertyValue
        value: 0.159
      additional property: Acousticness
        type: PropertyValue
        value: 0.137
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.107
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.176
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.843
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Sobotnia noc
  type: MusicAlbum
  date published: 2017-04-18
album: Popek daje kopa
  type: MusicAlbum
  date published: 2017-04-28
album: Nie zostawiaj nigdy mnie
  type: MusicAlbum
  date published: 2017-04-28
album: Popek i EW kontra lachociągi
  type: MusicAlbum
  date published: 2017-04-28
album: Abdul z Baśką zapraszają na ślub
  type: MusicAlbum
  date published: 2017-05-11