Verify every signer
with confidence
ValidSign offers comprehensive identity verification and authentication options to ensure every signature is legally binding and tamper-proof. From simple email links to EU-qualified certificates.
Identification vs. Authentication
Identification
WHO is the signer?Identification establishes the identity of a person before they sign. It answers the question: is this person really who they claim to be? Methods include ID document scans, bank-based verification (iDIN), and government identity systems.
Authentication
HOW do they prove it?Authentication is the method used to verify the signer's identity at the moment of signing. It provides the proof: a one-time SMS code, an email link, a DigiD login, or a qualified certificate from a trust service provider.
Authentication methods
Choose the right level of verification for every signing scenario
Signer receives a unique link via email to access and sign the document
SMS / OTP
One-time password sent via SMS for two-factor authentication
iDIN
Bank-based identity verification via Dutch banking system (ABN AMRO, ING, Rabobank, etc.)
DigiD
Dutch government digital identity for citizens. Highest assurance for Dutch public sector
eHerkenning
Dutch government digital identity for businesses. Required for government interactions
BankID
Scandinavian electronic identity solution used in Sweden, Norway, Finland
eIDAS Qualified
EU-wide qualified electronic signature with certificate from accredited trust service provider
Q&A / Knowledge-based
Custom security questions that only the intended signer can answer
Biometric
Facial recognition or fingerprint verification for high-security scenarios
eIDAS signature levels
The European eIDAS regulation defines three levels of electronic signatures, each with increasing legal weight
The most accessible form of electronic signature. Suitable for low-risk agreements like internal approvals and NDAs.
Uniquely linked to the signer and capable of detecting any subsequent changes. Required for contracts and HR documents.
The highest level under eIDAS, equivalent to a handwritten signature. Required for real estate, government, and high-value transactions. Available with KPN and Cleverbase cloud certificates.
How it works
Choose your method
Select the verification method(s) required for each signer when creating a signing request.
Signer verifies identity
The signer receives the request and completes the chosen authentication step before accessing the document.
Legally binding signature
Once verified, the signer signs the document. All verification steps are recorded in a tamper-proof audit trail.
Built for every industry
ValidSign identity verification adapts to the compliance needs of your sector
Government
DigiD and eHerkenning for citizen and business interactions with public sector organizations.
Healthcare
NEN 7510 compliant identity verification for patient consent forms, care agreements, and medical records.
Financial services
Bank-grade authentication with iDIN for loan agreements, account openings, and insurance contracts.
International
BankID and eIDAS qualified signatures for cross-border signing across the EU and Scandinavia.
See ValidSign in action
Experience the complete signing workflow, from document upload to legally binding signature.
Frequently asked questions
ValidSign offers email, SMS or OTP, iDIN, DigiD, eHerkenning, BankID, eIDAS Qualified, Q&A or knowledge-based questions, and biometric verification. This lets you choose the right level of verification for every signing scenario. Authentication is the method used to verify the signer at the moment of signing, for example with a one-time SMS code, an email link or a DigiD login.
Yes. ValidSign can send a one-time password via SMS for two-factor authentication. SMS or OTP is one of the methods listed for the Advanced Electronic Signature, together with iDIN and biometric verification. This level is uniquely linked to the signer and capable of detecting any subsequent changes, and is required for contracts and HR documents.
Yes. ValidSign supports DigiD, the Dutch government digital identity for citizens with the highest assurance for the Dutch public sector, and eHerkenning, the Dutch government digital identity for businesses that is required for government interactions. Both are listed as methods for the Qualified Electronic Signature, the highest level under eIDAS, equivalent to a handwritten signature.
For low-risk agreements such as internal approvals and NDAs, ValidSign points to the Simple Electronic Signature, the most accessible form of electronic signature. The methods for this level are email, where the signer receives a unique link to access and sign the document, and Q&A or knowledge-based authentication with custom security questions that only the intended signer can answer.