OpenProof
The product and document review workflow in development. Decisions remain human.
OPENPROOF LEGAL · LEGAL PROFESSIONALS
A case that can be verified.
A report that can be handed over.
Scattered documents. OpenProof organises the evidence, links each finding to its source, preserves contradictions and reservations, then submits the result to human review.
View a reconstructed case ↗Fictional example without an account · prewritten observations · product in development
GREYC · UNIVERSITÉ DE CAEN NORMANDIEResearch collaboration since 2025 · continuing in 2026Meet the team ↗
TRUTHX · THE TECHNOLOGY IN CONTEXT
One project, clear roles.
TruthX Engine
The structuring and control engine. Multi-agent research will be connected progressively, with results that can be evaluated.
RPO
The public structured record format and its integrity check. A fingerprint checks for changes, not the truth of the content.
Read the documentation →TruthX analysis & Proof Briefs →
01 / THE PROBLEM TO SOLVE
Be able to show why.
For people examining complex cases: operations, audit, compliance, research and legal document review. Our first collaborative workstream is preparing a case for human review.
Which source supports this?
Find the original passage, so a summary can be checked against its sources.
What does not add up?
Keep competing versions, disagreements and missing documents visible until reviewed.
What can I hand over?
Prepare a case where the next reader can recover sources, reservations and review decisions.
Documentary sourcesDisputed claimHuman reviewCorroborated elementContradiction foundOpen questionFrom source to finding, then finding to reservation: every step remains reviewable.
02 / SOMETHING YOU CAN EXAMINE
Open. Change. Check.
Explore Atlas, change a copy of its file and see what the integrity check detects. Its contradictions are prewritten: this example explains the workflow without demonstrating automatic contradiction detection.
Already verifiableSources, provenance, reservations, human review and integrity checking.
Still being validatedComplete automated analysis on real cases and processing capacity.
- Read the sources and reservations.
- Change a copy and run the check.
- Share what was clear or where you got stuck.
03 / PLANS & PRICING
Explore. Then choose your use.
Explore the public example, planned software uses and access conditions. The per-case, monthly and annual comparison is available without an account; purchases and subscriptions are not open yet.
View the plans →LET’S TALK ABOUT YOUR NEED
Contact Gersende.
A case to clarify, a question about OpenProof or a collaboration proposal? A few lines are enough to start.
gersende.ryard.de.parcey@truthx.coDescribe your need without attaching documents or sharing confidential information.
04 / A FOUNDER. A RESEARCH FOUNDATION. A NEXT CHAPTER.
The work has already begun.
Conceived and led by Gersende.
TruthX founder and OpenProof product designer, Gersende connects her transformation experience to an operational question: how can we reconstruct what supports a decision? She designed the initial thirteen-module architecture and leads priorities, contributions and acceptance.
Gersende’s background and commitment →GREYC / UNIVERSITÉ DE CAEN NORMANDIE · 2025–2026
Professor Gaël Dias · Lucy Martin · Clément Correia-Peltier
Under Professor Gaël Dias’s academic supervision, Lucy Martin and Clément Correia-Peltier developed a multi-agent prototype and delivered their code, report and presentation in May 2026. Their work covers document extraction, consistency checks, structured analysis and report generation.
This prototype is a research foundation. Integration into the current engine still needs to be implemented and evaluated.
Research and contributions ↗05 / THE OPENPROOF COMMUNITY
Make room for facts.
Build together.
Contributing to OpenProof means joining a community committed to integrity, the search for truth and justice informed by verifiable facts.
Researchers, developers, designers and practitioners: bring different perspectives, examine sources and make room for challenge. Gersende coordinates contributions around specific needs and results others can examine.
Contribute to OpenProof →
#44
Review the sources ↗
Use the fictional Cedar case to check findings, references and proposed reservations.
#45Make the case readable ↗
Propose a layout that helps the next reader find what matters.
#46Improve the checks ↗
Help check source references and define interfaces for the next workflow.
Join the work on GitHub ↗
A GitHub account is needed to reply. Fictional examples only. The complete engine is not yet released under an open-source licence.