Emil Szarkowicz
type: MusicGroup
popularity: 14
followers: 52
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb3d235bafc9857501b6a505b266386fab8a2fc8e4c8c7d43d9eab21017f5f962
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953768
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953768
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c0ff8998-c4cd-4db4-b534-69b3b3d08456.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c0ff8998-c4cd-4db4-b534-69b3b3d08456.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c0ff8998-c4cd-4db4-b534-69b3b3d08456
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T09:30:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb3d235bafc9857501b6a505b266386fab8a2fc8e4c8c7d43d9eab21017f5f962","name":"Emil Szarkowicz","registered_at":"2026-06-15T00:48:20Z","symbol":"NIM0629541","token_address":"0xeda3f504d068c1652e5652619f1ad95099a82d4c","type":"artist","uuid":"c0ff8998-c4cd-4db4-b534-69b3b3d08456"}
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 0xb3d235bafc9857501b6a505b266386fab8a2fc8e4c8c7d43d9eab21017f5f962. Chain 2 (Bitcoin): anchored in block 953768 (2026-06-15T09:30:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c0ff8998-c4cd-4db4-b534-69b3b3d08456.json and https://artists.proofprofile.net/proofs/artist/c0ff8998-c4cd-4db4-b534-69b3b3d08456.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T09:30:06Z
  text: {"copyright_id":"0xb3d235bafc9857501b6a505b266386fab8a2fc8e4c8c7d43d9eab21017f5f962","name":"Emil Szarkowicz","registered_at":"2026-06-15T00:48:20Z","symbol":"NIM0629541","token_address":"0xeda3f504d068c1652e5652619f1ad95099a82d4c","type":"artist","uuid":"c0ff8998-c4cd-4db4-b534-69b3b3d08456"}
album: single "3"
  type: MusicAlbum
  date published: 2008-11-21
album: Veer van de Jonge Böck (Nieuw Einde, Nieuw Einde)
  type: MusicAlbum
  date published: 2017-01-09
album: D'r Lange Jan
  type: MusicAlbum
  date published: 2025-09-12
  track: D'r Lange Jan
    type: MusicRecording
    duration: PT4M18S
    duration ms: 258725
    explicit: false
    by artist: Emil Szarkowicz
    in album: D'r Lange Jan
      type: MusicAlbum
      date published: 2025-09-12
    isrc code: NLL6R2501323
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T05:22:46+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd31fa06519cc062aeaa7581a364b9c02e9d54d2ba407b2c18f49f7e51ee0be8d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956790
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956790
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLL6R2501323
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T12:31:54Z
    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 0xd31fa06519cc062aeaa7581a364b9c02e9d54d2ba407b2c18f49f7e51ee0be8d. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/NLL6R2501323.
      date published: 2026-07-05T12:31:54Z
    audio: D'r Lange Jan
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 76.118
      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: 0.529
      additional property: Energy
        type: PropertyValue
        value: 0.16
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0.984
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.549
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.211
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.948
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major