efix
type: MusicGroup
popularity: 10
followers: 820
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0c50252472e0f2d9dde031b8b6f7a52f9fcf1466d41c269731ef4b70dbd85910
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954615
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954615
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c646a6c0-e82a-4abe-a5e7-178fe9617fa9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c646a6c0-e82a-4abe-a5e7-178fe9617fa9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c646a6c0-e82a-4abe-a5e7-178fe9617fa9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T22:44:50Z
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 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 0x0c50252472e0f2d9dde031b8b6f7a52f9fcf1466d41c269731ef4b70dbd85910. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c646a6c0-e82a-4abe-a5e7-178fe9617fa9.json and https://artists.proofprofile.net/proofs/artist/c646a6c0-e82a-4abe-a5e7-178fe9617fa9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T22:44:50Z
album: Wybrałem Sam
  type: MusicAlbum
  date published: 2019-02-15
album: 4/3
  type: MusicAlbum
  date published: 2019-05-27
album: 4/3
  type: MusicAlbum
  date published: 2019-07-04
album: NSP EP
  type: MusicAlbum
  date published: 2020-03-27
album: iMBACK!
  type: MusicAlbum
  date published: 2021-07-04
album: HIGH AF
  type: MusicAlbum
  date published: 2021-08-16
album: AAAAA
  type: MusicAlbum
  date published: 2021-08-23
album: AAAAA
  type: MusicAlbum
  date published: 2021-08-23
album: MAM BEKE
  type: MusicAlbum
  date published: 2021-08-30
album: GET IT!
  type: MusicAlbum
  date published: 2021-09-06
album: JAKI KOT
  type: MusicAlbum
  date published: 2021-09-13
album: SPLOT
  type: MusicAlbum
  date published: 2021-09-20
album: KEEP IT UP!
  type: MusicAlbum
  date published: 2021-09-27
album: OKULAR
  type: MusicAlbum
  date published: 2021-10-11
album: RATTATA
  type: MusicAlbum
  date published: 2021-10-18
album: undertrapped
  type: MusicAlbum
  date published: 2021-11-23
  track: undertrapped
    type: MusicRecording
    duration: PT2M11S
    duration ms: 131041
    explicit: true
    by artist: efix
    in album: undertrapped
      type: MusicAlbum
      date published: 2021-11-23
    isrc code: QZPLR2149818
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T17:52:41+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x9ed5b34ea0674e39f195c0841b2863c2b763fb25220430c49cc861e5258aa04c
    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/QZPLR2149818
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T18:40:26Z
    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 0x9ed5b34ea0674e39f195c0841b2863c2b763fb25220430c49cc861e5258aa04c. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QZPLR2149818.
      date published: 2026-07-21T18:40:26Z
    audio: undertrapped
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 144.065
      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: 0.61
      additional property: Energy
        type: PropertyValue
        value: 0.709
      additional property: Speechiness
        type: PropertyValue
        value: 0.042
      additional property: Acousticness
        type: PropertyValue
        value: 0.004
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.093
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.399
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.048
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: BRODA
  type: MusicAlbum
  date published: 2021-12-18
album: BDAY
  type: MusicAlbum
  date published: 2022-01-02
album: NUMERY O ZUPIE
  type: MusicAlbum
  date published: 2022-01-19
album: NOTES
  type: MusicAlbum
  date published: 2023-04-07
album: NOTES
  type: MusicAlbum
  date published: 2023-04-07
album: KTO TO JEST?!
  type: MusicAlbum
  date published: 2023-04-21
album: KTO TO JEST?!
  type: MusicAlbum
  date published: 2023-04-21
album: EXCLUDE
  type: MusicAlbum
  date published: 2023-05-06
album: EXCLUDE
  type: MusicAlbum
  date published: 2023-05-06
album: EXCLUDE EP
  type: MusicAlbum
  date published: 2023-05-07
album: EXCLUDE EP
  type: MusicAlbum
  date published: 2023-05-07
album: REPREZEM
album: GDZIE MOJA KAWA?!
album: NIE WIEM NIC
album: SHINY

REPREZEM
type: MusicAlbum
date published: 2023-05-07

GDZIE MOJA KAWA?!
type: MusicAlbum
date published: 2023-09-08

NIE WIEM NIC
type: MusicAlbum
date published: 2025-10-11

SHINY
type: MusicAlbum
date published: 2025-11-02