Privacy
Providing proof should not mean giving up control of your files.
About ProofStack
Certainty. Without dependency.
Digital information changes. Proof gives you something to come back to.
01 / Our mission
Less blind trust. More verifiable evidence.
ProofStack builds digital proof infrastructure for people, teams and developers. Record a file, keep a reference and check later whether it has changed, without handing over the original.
Your data stays yours.
Original files can stay on your device or in your own storage. A recorded reference helps you check the integrity of a file later.
Built on European values.Proudly European.
ProofStack is a Belgian company. Privacy, transparency, autonomy and accountability guide the technology we build.
Transparency
Be clear about what a check establishes. Be equally clear about what it does not.
Autonomy
Give people the tools to check for themselves, rather than relying on blind trust in a platform.
Accountability
Verifiable evidence helps substantiate claims. That matters in business and in a democratic society.
02 / The people behind ProofStack
The people behind ProofStack
Founded by Sebastiaan de Voogd, together with co-founders Roel Stassen, Ben Gyles, Maria Boicova-Wynants and Antoine Geerinckx.
Sebastiaan de VoogdCo-Founder & Chief Executive Officer
Ben GylesCo-Founder & Chief Technical Officer
Maria Boicova-WynantsCo-Founder and Chief Legal Officer
Roel StassenCo-founder · International growth & partnerships
Antoine GeerinckxCo-founder · Sustainability & impact entrepreneurship
Proof of existence. Proof of integrity.
A blockchain timestamp provides independently verifiable evidence that this version of your file existed by the time it was registered. A matching hash confirms that the file you check is identical to the sealed version.
This proves existence and file integrity; it does not by itself establish authorship or the truth of the content.
Verify ↗