How is HTPBE different from KYC platforms like Onfido or Persona?

KYC platforms verify that a document looks authentic — correct template, matching identity, valid format. HTPBE checks whether the specific PDF file was modified after it was generated. These are different layers of verification.

A bank statement can pass every KYC template check and still have edited balances. HTPBE detects the modification at the file structure level — xref tables, incremental updates, producer field inconsistencies.