Platform · Space · Data provenance
Ground-segment records, signed and independently verifiable.
Level Zero is DOMSELARDI's sovereign TRL-4 ground-segment provenance demonstrator. It conditions representative multidomain inputs - satellite downlink frames, EO and SAR scene metadata, live track state and operator reports - into the lz.canonical.v1 model, signs each record with Ed25519 and links it into an append-only custody chain. A public verifier pinned to a trust anchor can validate the record independently. Level Zero exposes canonical JSON and GeoJSON through a REST API, with a JSON Schema contract and an OGC SensorThings crosswalk. It is a provenance and interoperability layer, not an RF demodulator or an imagery-processing suite; live operational connectors remain on the roadmap.
R&D
High-risk AI · Compliance
AI operates. REMIS attests.
Evidentiary infrastructure for high-risk AI systems - seals critical events into hashed, signed, qualified-eIDAS-timestamped evidence packets that any third party can verify without exposing the underlying data.
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B2G
Public sector · Sovereign platform
The sovereign base for your public digital services.
A sovereign web platform for the public sector - portal, e-services, forms, documents, validation circuits and dashboards. The recurring needs of administrations and local authorities, already solved, ready to deploy and adaptable to your CCTP.
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SaaS
Software & subscription management · Sovereign
Every licence, subscription and purchase under control.
A sovereign platform that brings every licence, subscription and purchase your organisation pays for or owns into one reliable registry - with a renewal radar so nothing auto-renews unnoticed and no spend is forgotten. For SMEs, businesses and the public sector, hosted in France.
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B2B
Healthcare · Turnkey hospitals
The operational layer of a turnkey hospital.
A white-label, on-premises operations and equipment-management platform for hospitals built by turnkey integrators - installed the same day as the medical equipment, deployed on site, delivered in the owner's own colours.
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SaaS
Judicial professionals · Mission management
The software that follows judicial missions through to payment.
French mission-management software for judicial experts - missions, deadlines, fee statements, Chorus Pro preparation, payments, bank reconciliation, VAT and reports in one workspace.
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SaaS
Appointment-based professionals
The agenda that thinks your day for you.
All-in-one French business software for professionals who run on appointments - scheduling, client records, quotes, invoicing and payment in one place, replacing paper agendas, spreadsheets and separate POS apps.
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SaaS
Real estate · Property management
Property management, clear and sovereign.
A French SaaS platform centralising day-to-day real estate management between syndics, property managers, landlords and tenants - properties, lots, documents, inspections, requests, received invoices, interventions, exports and exchanges in one shared space.
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