Research feed · Papers · Notes · Open questions

What we ship.
What we are exploring.

A single chronological feed of technical reports, lab notes, and open research questions from Helios Brain. Every artefact is dated and traceable. Categorised by mission area, not by content type.

Lab noteFeb 18, 2026
Project Hephaestus

Shipped: versioned ontology compilation

Ontologies now compile to a typed graph with version pins on every entity-relation. Reasoning runs always cite the schema version. Customers can roll a substrate back to any prior schema and replay decisions deterministically.

Lab noteFeb 14, 2026
Project Demeter

First write-up: partial-ontology uncertainty

Internal preprint. We argue partial-ontology uncertainty is a first-class quantity, distinguishable from aleatoric and epistemic uncertainty over data, and composable across all eight reasoning layers without leakage.

Lab noteFeb 06, 2026
Project Athena

Adversarial governance: first red-team report

We ran a six-week adversarial campaign against the governance layer of a banking substrate. The team probed ontology gaps, permission boundaries, and policy staleness. Eighteen findings, all reproducible. Mitigations land in v1.6.

Lab noteJan 28, 2026
Project Apollo

Composing proofs with posteriors

We are formalising how a recommendation that rests on a logically provable regulatory constraint and a probabilistic posterior over outcomes can compose without losing the type signature of each guarantee.

Lab noteJan 22, 2026
Helios Lab

Athens, January

Three new hires from European universities. A first quarter of joint engineering with a sovereign wealth fund and a tier-one bank. Long evenings, short emails. The work feels right.

Lab noteJan 14, 2026
Helios Lab

On useful intelligence

A short note on why our lab focuses on organisational intelligence rather than autoregressive assistants. The world does not need a smarter answerer. It needs a substrate that remembers, governs, and learns from outcomes.

Lab noteJan 02, 2026
Project Hestia

Bitemporal memory in production

Helios Brain now records every fact with two timestamps: when it was true in the world, and when we learned about it. Audits can replay any prior state. Bitemporal is no longer a research property, it is a customer guarantee.

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