SignumEra
Second-generation digital signing for serious agreements, built around verified execution rooms, Microsoft-native documents, signing policy, witness-ready logic, finalization, and evidence packages.
Portfolio
Portfolio products built on a shared signing infrastructure layer.
Certus Ledger Plc develops projects around the Certus Ledger Signing Spine, a reusable foundation for verified signing, execution policy, document integrity, and evidence-first records.
Prodicium
A Certus Ledger project designed to extend the Signing Spine into specialized verification, signing, evidence, and document-intelligence workflows.