Alfons Szczerbiński
type: MusicGroup
popularity: 8
followers: 97
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf2c21ac1b9fa0a8d0ef37b94967dc1c461f5b452e87bb1169ca2b59425b30ad4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/93328759-3cc1-47b1-894f-5f24eaa12b00.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/93328759-3cc1-47b1-894f-5f24eaa12b00.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/93328759-3cc1-47b1-894f-5f24eaa12b00
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf2c21ac1b9fa0a8d0ef37b94967dc1c461f5b452e87bb1169ca2b59425b30ad4","name":"Alfons Szczerbiński","registered_at":"2026-06-17T17:00:43Z","symbol":"NIM1460481","token_address":"0x68d613bd091f7643fed31d443a62ff44452a1b20","type":"artist","uuid":"93328759-3cc1-47b1-894f-5f24eaa12b00"}
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 0xf2c21ac1b9fa0a8d0ef37b94967dc1c461f5b452e87bb1169ca2b59425b30ad4. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/93328759-3cc1-47b1-894f-5f24eaa12b00.json and https://artists.proofprofile.net/proofs/artist/93328759-3cc1-47b1-894f-5f24eaa12b00.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0xf2c21ac1b9fa0a8d0ef37b94967dc1c461f5b452e87bb1169ca2b59425b30ad4","name":"Alfons Szczerbiński","registered_at":"2026-06-17T17:00:43Z","symbol":"NIM1460481","token_address":"0x68d613bd091f7643fed31d443a62ff44452a1b20","type":"artist","uuid":"93328759-3cc1-47b1-894f-5f24eaa12b00"}
album: Szczerbiński: Complete Piano Works, Vol. 1
  type: MusicAlbum
  date published: 2021-11-12
album: Szczerbiński: Complete Piano Works, Vol. 1
  type: MusicAlbum
  date published: 2021-11-12
  track: 4 Chansons sans paroles, Op. 14: No. 2, Andante cantabile
    type: MusicRecording
    duration: PT1M49S
    duration ms: 109800
    explicit: false
    by artist: Alfons Szczerbiński
    in album: Szczerbiński: Complete Piano Works, Vol. 1
      type: MusicAlbum
      date published: 2021-11-12
    isrc code: HKI192116612
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-12T22:15:48+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x53d5ac2be93e4864a6e5385b6f699c228641c85fde8d3ea4271f37bcb406e9bb
    additional property: OTSHash
    additional property: OTSBitcoinBlock
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      value: 957766
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957766
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI192116612
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T22:25:04Z
    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 0x53d5ac2be93e4864a6e5385b6f699c228641c85fde8d3ea4271f37bcb406e9bb. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/HKI192116612.
      date published: 2026-07-12T22:25:04Z
    audio: 4 Chansons sans paroles, Op. 14: No. 2, Andante cantabile
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 138.287
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.384
      additional property: Energy
        type: PropertyValue
        value: 0.041
      additional property: Speechiness
        type: PropertyValue
        value: 0.072
      additional property: Acousticness
        type: PropertyValue
        value: 0.995
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.907
      additional property: Liveness
        type: PropertyValue
        value: 0.116
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.067
      additional property: Loudness (dB)
        type: PropertyValue
        value: -28.458
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Szczerbiński: Complete Piano Works, Vol. 2
  type: MusicAlbum
  date published: 2022-03-04
album: Szczerbiński: Complete Piano Works, Vol. 2
  type: MusicAlbum
  date published: 2022-03-04