Proof of autonomous action
PROOF #03 / 10
CLIENT CASE · HERITAGE REGISTRY

1,794 objects.
117 years of history.
100% documented.

A collector had no central registry for a historic collection. Jengo built the entire platform, including database, frontend, AI research pipeline and AI chat, in weeks instead of months.

1,794
registered objects
5
historic eras
117
years of heritage
100%
documented provenance
Watch it happen

60 seconds of proof

The starting point: over a century of heritage, scattered across archives, documents and expert memory. No single place to answer the simple question: what do we have, and what do we know about it?

The full story

What actually happened

The starting point: over a century of heritage, scattered across archives, documents and expert memory. No single place to answer the simple question: what do we have, and what do we know about it?

Jengo built the full stack. A .NET backend with a provenance-aware data model and ownership history per object. A multilingual React frontend with a dark, luxury design language fitting the collection. REST APIs for everything.

Then the differentiator: an AI enrichment pipeline that researches every object autonomously, finding historical records, cross-validating sources and completing provenance chains. On top of that comes an AI chat that lets visitors ask anything about the collection and get answers grounded in verified data. 1,794 objects, 100% documented.

The approach

What Jengo built

Backend
.NET API, provenance data model, ownership history, full CRUD.
Frontend
React SPA, four languages, design matched to the collection's stature.
AI pipeline
Autonomous research: sourcing, cross-validation, provenance completion.
AI chat
Visitors ask and the AI answers, grounded in the verified registry.
Why it matters

What this means for your business

Full-stack, one agent
From database to design to AI features, with no coordination overhead between specialists.
Weeks, not quarters
The platform went from nothing to live while a traditional team would still be planning.
Data that works
Not a static archive: a registry that researches, validates and explains itself.

Want this running in your company?

Message Martien directly on WhatsApp, or ask Jengo · yes, the same AI you just watched · anything about this case in the chat on martiendejong.nl.

Prefer email? [email protected]

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