Krakow
type: MusicGroup
genre: post-rock
genre: progressive metal
genre: sludge metal
genre: stoner rock
popularity: 4
followers: 2695
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf4ff0bdf475e11e5eab09b6932db95d43e7b0c84d28fbbce0895fa865ca714b6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954008
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954008
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3387a449-40eb-4c0e-b2a1-00bc2c228745.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3387a449-40eb-4c0e-b2a1-00bc2c228745.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3387a449-40eb-4c0e-b2a1-00bc2c228745
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T21:31:27Z
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 0xf4ff0bdf475e11e5eab09b6932db95d43e7b0c84d28fbbce0895fa865ca714b6. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3387a449-40eb-4c0e-b2a1-00bc2c228745.json and https://artists.proofprofile.net/proofs/artist/3387a449-40eb-4c0e-b2a1-00bc2c228745.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
album: Far-away Look
  type: MusicAlbum
  date published: 2009-04-26
album: Monolith
  type: MusicAlbum
  date published: 2009-10-26
album: Monolith
  type: MusicAlbum
  date published: 2009-10-26
album: Drifter
  type: MusicAlbum
  date published: 2011-02-26
album: Firefly
  type: MusicAlbum
  date published: 2011-02-26
album: Drifter
  type: MusicAlbum
  date published: 2011-02-26
album: Diin
  type: MusicAlbum
  date published: 2012-09-14
album: Diin
  type: MusicAlbum
  date published: 2012-09-14
album: Diin
  type: MusicAlbum
  date published: 2012-09-14
album: amaran
  type: MusicAlbum
  date published: 2015-02-09
album: Amaran
  type: MusicAlbum
  date published: 2015-02-09
album: Amaran
  type: MusicAlbum
  date published: 2015-02-09
album: Genesis
  type: MusicAlbum
  date published: 2015-08-07
album: Genesis
  type: MusicAlbum
  date published: 2015-08-07
album: Alive
  type: MusicAlbum
  date published: 2016-01-01
album: Alive
  type: MusicAlbum
  date published: 2017-03-24
album: Black Wandering Sun
  type: MusicAlbum
  date published: 2018-06-01
album: Sirens
  type: MusicAlbum
  date published: 2018-08-24
album: Minus
  type: MusicAlbum
  date published: 2018-08-31
  track: Minus
    type: MusicRecording
    duration: PT9M44S
    duration ms: 584161
    explicit: false
    by artist: Krakow
    in album: Minus
      type: MusicAlbum
      date published: 2018-08-31
    genre: post-rock
    genre: progressive metal
    genre: sludge metal
    genre: stoner rock
    isrc code: NOKAR1806050
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T19:38:10+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe2c208246e4658e742e5b23dfb5e7f6a20dcf7213ead1eec53c6796501f37da4
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956738
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956738
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOKAR1806050
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T04:47:21Z
    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 0xe2c208246e4658e742e5b23dfb5e7f6a20dcf7213ead1eec53c6796501f37da4. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/NOKAR1806050.
      date published: 2026-07-05T04:47:21Z
    audio: Minus
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 108.066
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.354
      additional property: Energy
        type: PropertyValue
        value: 0.626
      additional property: Speechiness
        type: PropertyValue
        value: 0.029
      additional property: Acousticness
        type: PropertyValue
        value: 0.022
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.835
      additional property: Liveness
        type: PropertyValue
        value: 0.069
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.454
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.961
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Minus
  type: MusicAlbum
  date published: 2018-08-31
album: minus
  type: MusicAlbum
  date published: 2018-08-31