Stefan Lyczewski
type: MusicGroup
genre: lo-fi house
genre: uk garage
popularity: 3
followers: 124
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
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  value: https://artists.proofprofile.net/proofs/artist/b8282873-8bce-4ecb-b1dc-2dcb5a2b2d53.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b8282873-8bce-4ecb-b1dc-2dcb5a2b2d53.json
additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
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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
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  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x3230f03d9c09b55188558b1804eaf25d04f89fb37c598dc6e8009bfe6e1b2903","name":"Stefan Lyczewski","registered_at":"2026-06-20T15:59:47Z","symbol":"NIM1647526","token_address":"0x021e86f6582ca6be1622aea60d3a15e240375ae7","type":"artist","uuid":"b8282873-8bce-4ecb-b1dc-2dcb5a2b2d53"}
album: Feel The Rhythm Of House
  type: MusicAlbum
  date published: 2016-04-01
album: Back To The Disco
  type: MusicAlbum
  date published: 2016-09-02
track: Get Up - Sebb Junior Remix
  type: MusicRecording
  duration: PT6M26S
  duration ms: 386560
  explicit: false
  by artist: Paul Rudder
  by artist: Stefan Lyczewski
  by artist: Sebb Junior
  in album: House & Garage Vol.1
    type: MusicAlbum
    date published: 2020-01-23
  genre: jazz-house
  isrc code: GBLV61926973
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLV61926973
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T00:26:26Z
  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 0xf9fa0c22a446f612e6622dd032ecdb514cab0273f213116708591094f292e9d6. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBLV61926973.
    date published: 2026-07-31T00:26:26Z
  audio: Get Up - Sebb Junior Remix
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 133.65
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.748
    additional property: Energy
      type: PropertyValue
      value: 0.861
    additional property: Speechiness
      type: PropertyValue
      value: 0.12
    additional property: Acousticness
      type: PropertyValue
      value: 0.012
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.552
    additional property: Liveness
      type: PropertyValue
      value: 0.089
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.773
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.602
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major