Proof through data
Markellia is a trust infrastructure built on data. We establish verifiable, legally admissible facts that reduce information asymmetry between two parties.
Two areas of expertise, one standard of proof
Choose your world.
Public authorities
Audit & Advisory
The independent, AI-augmented client-side advisory (AMO) for the authorities that fund a delegated service. Data audit, contract steering, competition readiness.
Enter the Audit worldArt market
Passport
The artwork's digital passport: declared provenance and exhibition history, sealed and timestamped. Date and integrity admissible in court — sealing shifts the burden of proof.
Discover PassportA backbone of trust
A standard of proof
Founded by a data expert — a commitment to verifiable, legally admissible facts.
Sovereignty
100% European infrastructure and teams, hosted in France and Switzerland.
Backing
Incubated at Station F, backed by OVHcloud Startup.
Backed by:
Proof in action: the monthly TER Barometer, built exclusively from open data. See the Barometer