Coherence-governed infrastructure for high-consequence systems.
QCT builds a layered platform that measures coherence, governs admissibility, and enables secure action. We are not a point-solution vendor. We ship a systems stack that refuses under uncertainty and emits audit-grade evidence.
We sell the right to act under uncertainty.
Our platform decides when action is admissible, then proves that decision with artifacts. This applies across security, infrastructure, and sensing where false trust is catastrophic.
One coherent stack, not disconnected products.
QCT is built as a dependency graph. Measurement and governance come first. Domain systems are downstream clients. The result is consistent behavior across environments, with refusal semantics and evidence bundles as the invariant.
Most systems fail by silent degradation and false trust.
Modern stacks keep operating when instrumentation drifts, timing becomes uncertain, or inputs are substituted. They produce plausible outputs with no admissibility boundary. QCT introduces that boundary explicitly.
- Coherence as signal Ξ is a measurable family of indices that captures structure and stability. It is used as both diagnostics and governance input.
- Refusal-first discipline False refusal is acceptable. False trust is not. The platform fails closed under uncertainty.
- Artifact-first proof Every decision emits a replayable evidence bundle. Trust becomes verifiable, not implied.
Any domain where false trust is catastrophic.
Security, critical infrastructure, and sensing pipelines share the same failure mode: action taken on inadmissible state. QCT standardizes admissibility under a single kernel.
decision.json
{
"decision": "REFUSE",
"reason": "COHERENCE_ENVELOPE_FAIL",
"artifacts": ["policy.json","manifest.json","hashes.json","metrics.json"]
}
Determinism, replay detection, and auditability are first-class outputs.
QCT treats measurement paths as instruments. If the instrument is not in spec, the system refuses. If a run is replayed or substituted, the system refuses. If admissible, the system allows and emits a complete proof bundle.
Four pages. One platform.
Each component has its own depth. The homepage introduces QCT. The next pages define the kernel and the two flagship clients.
If false trust is catastrophic, we should talk.
QCT pilots start in shadow mode: measure, score, refuse when out of spec, and emit artifacts. No risky integration is required to prove value early.