Hi-Fi
type: MusicGroup
genre: disco
genre: disco polo
popularity: 24
followers: 740
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa5f7126401a10897742fc14cae18ed296dfae76bed62b0a2e34664b130e8bf61
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/78d335e1-8b15-428d-bcfc-0da1fd840065.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/78d335e1-8b15-428d-bcfc-0da1fd840065.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/78d335e1-8b15-428d-bcfc-0da1fd840065
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
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 0xa5f7126401a10897742fc14cae18ed296dfae76bed62b0a2e34664b130e8bf61. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/78d335e1-8b15-428d-bcfc-0da1fd840065.json and https://artists.proofprofile.net/proofs/artist/78d335e1-8b15-428d-bcfc-0da1fd840065.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
album: Kobiety, kłamstwa, rozstania
  type: MusicAlbum
  date published: 2012-06-15
album: Grzeczne dziewczynki
  type: MusicAlbum
  date published: 2012-09-25
album: Bujaj Się Tak
  type: MusicAlbum
  date published: 2013-10-09
album: Bujaj się tak (Extended Radio Edit)
  type: MusicAlbum
  date published: 2013-10-09
album: Bujaj się tak (Radio Edit)
  type: MusicAlbum
  date published: 2013-10-09
album: Loczki
  type: MusicAlbum
  date published: 2013-11-12
  track: Loczki - Radio Edit
    type: MusicRecording
    duration: PT4M18S
    duration ms: 258182
    explicit: false
    by artist: Hi-Fi
    in album: Loczki
      type: MusicAlbum
      date published: 2013-11-12
    genre: disco
    genre: disco polo
    isrc code: PLG231300039
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T14:44:11+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6a85c6006b46611dab8621303a5b0bcfaf803e60fdb1ce6d670740d3cc8eaacd
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956576
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956576
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLG231300039
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T02:06:47Z
    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 0x6a85c6006b46611dab8621303a5b0bcfaf803e60fdb1ce6d670740d3cc8eaacd. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/PLG231300039.
      date published: 2026-07-04T02:06:47Z
    audio: Loczki - Radio Edit
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 135.017
      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: 0.761
      additional property: Energy
        type: PropertyValue
        value: 0.891
      additional property: Speechiness
        type: PropertyValue
        value: 0.112
      additional property: Acousticness
        type: PropertyValue
        value: 0.065
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.102
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.836
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.427
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Bądź ze mną bądź
  type: MusicAlbum
  date published: 2014-02-25
album: Muzyczna biba
  type: MusicAlbum
  date published: 2014-03-31
album: Crazy
  type: MusicAlbum
  date published: 2014-09-16
album: Piękna lady (Singiel)
  type: MusicAlbum
  date published: 2015-01-27
album: Uzależniony
  type: MusicAlbum
  date published: 2015-05-19
album: Ostra jak tabasco (Singiel)
  type: MusicAlbum
  date published: 2015-07-14
album: Bo zawsze świeci słońce
  type: MusicAlbum
  date published: 2016-06-16
album: Ty i żadna więcej
  type: MusicAlbum
  date published: 2016-11-08
album: Dwie na raz
  type: MusicAlbum
  date published: 2017-05-29
  track: Dwie na raz - Radio Edit
    type: MusicRecording
    duration: PT3M42S
    duration ms: 222228
    explicit: false
    by artist: Hi-Fi
    in album: Dwie na raz
      type: MusicAlbum
      date published: 2017-05-29
    genre: disco
    genre: disco polo
    isrc code: PLG231700059
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-02T21:01:15+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x1ed3b939e37e92cc7cb77457e4da5e7fde828893ea4fd9f82262af242bce402f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956402
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956402
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLG231700059
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T02:19:02Z
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: Dwie na raz - Radio Edit
album: W dobrym wozie

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed3b939e37e92cc7cb77457e4da5e7fde828893ea4fd9f82262af242bce402f. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T02:19:02Z), 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/PLG231700059.
date published: 2026-07-17T02:19:02Z

Dwie na raz - Radio Edit
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 138.003
additional property: Musical Key
  type: PropertyValue
  value: 7
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.84
additional property: Energy
  type: PropertyValue
  value: 0.885
additional property: Speechiness
  type: PropertyValue
  value: 0.217
additional property: Acousticness
  type: PropertyValue
  value: 0.075
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.062
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.968
additional property: Loudness (dB)
  type: PropertyValue
  value: -7.198
additional property: Key Name
  type: PropertyValue
  value: G
additional property: Mode Name
  type: PropertyValue
  value: Major

W dobrym wozie
type: MusicAlbum
date published: 2018-10-09