Cryptographic signature and seal infrastructure

SignSisure: qualified electronic signature with blockchain seal

Avoid the legal decay of evidence in court. Digitally seal your contracts in Blockchain to guarantee their enforceability and immutability without time limits.

eIDAS 2.0 compliant EU legal value
signsisure · certificate
Signature certificateVERIFIED
Framework Agreement 2026.pdf
Qualified Signature · eIDAS 2.0
SHA-256 hash
0x8f3a…d21c
Anchor
Hyperledger Fabric · #1.204.882
Legal risk

Probative decay: an ignored risk.

A contract signed with a Qualified Electronic Signature is valid today, but will it be in 5 years? Cryptographic certificates have an expiry date. When they expire, the validity of your contract is exposed to disputes.

YEAR 0

Signing

Valid and enforceable signature.

YEAR 3

Certificate expiry

Beginning of legal vulnerability.

BLOCKCHAIN SEAL

Permanent enforceability

Guaranteed even with expired certificates.

Compliance

Built for total regulatory compliance.

eIDAS Regulation

Full alignment with European standards (EU Regulation no. 910/2014).

PAdES & CAdES signature

Native integration of PDF standard formats and .p7m cryptographic envelopes.

Hash timestamping

Decentralized notarization independent of revocable certification authorities.

Legal audit

Free legal compliance analysis.

One of our lawyers will analyze your compliance needs to assess the risk of probative decay.

📘 Vuoi capire a fondo il regolamento? Leggi la nostra guida completa: eIDAS 2.0: Guida Completa per Aziende Italiane