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Questions and answers

• If a signer disputes a signature, what evidence can we export to verify their identity, consent, and the document version they signed?

  Asked by SaaS Browser · November 3, 2026

  Answered by MICHAEL SOSA from HankoSign · November 4, 2026

  Every completed HankoSign envelope produces two downloadable records:
  The signed PDF. It carries a PKI digital signature and is certified when it's finalized. Any change made to the file after signing shows up when you open it in Adobe Acrobat or another PDF validator.
  A Certificate of Completion. This is a separately signed PDF that records:
  Identity: each signer's name and email address, how they accessed the document (a unique signing link sent to their email, or an in-person session hosted by the sender), and the IP address they signed from.
  Consent: a record that each signer accepted the electronic records and signatures disclosure before signing, with the date and time.
  Document version: a SHA-256 fingerprint of the exact document that was signed, so you can check a copy against what the signer saw.
  Audit trail: a time-stamped history (in UTC) of the envelope from creation to completion, including when it was sent, viewed and signed, and each signer's adopted signature.
  Both files can be downloaded from the envelope's page at any time, or retrieved through the HankoSign API.
  HankoSign is designed to meet the requirements of the federal ESIGN Act and UETA. Whether a signature holds up in a particular dispute is for a court or arbitrator to decide, so consult your attorney about specific matters.

• Get paid faster
  You can receive payments right after the signer finishes signing the document.
• All-in-one portal
  Manage signing, collection, and payments all in one simple platform.
• PKI-certified PDFs
  Signed documents are certified and verifiable in Adobe Acrobat with a special signature and certificate.
• Trusted timestamps
  The exact time each signature was made is verified and shown as trusted in Adobe Acrobat.
• Complete audit trail
  Every action like viewing or signing is recorded and sealed into the document, so changes can be detected.
• Drag-and-drop fields
  Place signature, initials, date, and other fields anywhere on the document with a simple visual tool.
• Easy to use platform
  You can upload files, add signature fields, and send documents easily without needing to learn complicated tools.
• Unique signing links
  Each signer gets a special, secure link to sign, and no account is needed to sign.
• Legally binding e-signatures
  All signatures are secure, certified, and legally useful in court.
• Sequential and parallel signing
  Send documents to one or multiple people at once, with options to sign in order or all together.