4SI

4SI for institutions

Digital decisions.
Physical evidence.

A valid instruction does not establish who or what is physically behind it. 4SI is developing an additional evidence layer for consequential actions.

In development. Prototype validation is not production qualification.

The institutional boundary

An additional check.
Not a new authority.

Your identity, policy, approval and audit systems retain their responsibilities.

Your systems

A valid instruction.

An account, an amount and a destination.

Identity & policy
The Presence boundary

The expected person.

Physical participation at the point of consequence.

Physical evidence
Your institution

Permit. Deny.
Escalate.

Your policy governs the result. Your institution owns the decision.

Decision & record

Illustrative workflow logic. Not a live verification or evidence of a deployed integration.

What the control contract needs to define +

The claim: what must be physically established, for whom, and at which action boundary.

The result: how your system receives, interprets and records evidence, including missing or uncertain evidence.

The owner: who defines policy, accepts the result and governs failure, revocation and escalation.

Explore the evaluation method
Which physical question does your workflow need to answer?

The person

Is the accountable person physically participating in this action?

The object

Is the physical object consistent with the claim being made about it?

The boundary

Is the action taking place under the conditions your institution requires?

Understand the physical evidence gap

The making of trust

Why physical evidence matters.

The making of trust

Trust had
a texture.

From material knowledge to digital decisions.

Continue to the architecture

Connect the digital decision to the physical question.

Explore the three anchors
About this illustrated story

An illustrative journey through industrial trust, not a universal chronology. The final scenes describe 4SI’s development direction; product scopes and maturity differ. Object provenance is a separate evaluation area. Institutions retain permissions, operating safeguards and final authority. Current product status follows below.

Status, without ambiguity

What exists.
What comes next.

A clear distinction between evaluation work, prototype validation and long-term direction.

Available for evaluation

Presence boundary design

Define the physical claim, the institutional owner and the decision boundary.

Currently validating

Key and Layer prototypes

Prototype evidence is not equivalent to qualified hardware or a production installation.

Long-horizon direction

Presence Home

Governed environments remain a strategic direction, not a current deployment promise.

Application fields

Where trust
has consequences.

Start with one workflow, not a promise to replace your infrastructure.

Explore all application domains

Controlled evaluation

A decision package.
Not a demonstration.

A bounded evaluation should produce evidence your institution can review.

01

Define

Name the workflow, accountable owner and physical claim.

02

Bound

Set the environment, threat model and acceptance criteria.

03

Evaluate

Observe behavior, failure paths and the resulting evidence.

04

Decide

Scale, revise or stop against the agreed boundary.

Your reviewable outputs
  • Authority boundary map
  • Threat and failure model
  • Integration contract
  • Observed evidence record
  • Scale, revise or stop recommendation
The evaluation path in detail

4SI Intelligence / Public beta

Read the signals.
Open the sources.

Follow the evidence behind physical-trust risks. Separate reported incidents, analytical scenarios and the limits of what is known.

Explore Intelligence
Risk

Presence Risk Index

Evidence

Evidence Library

Scenarios

Scenario Lab

Links open the current public Intelligence platform.

Long-term thinking

Build the evidence.
Keep the horizon.

Founding Institution Program

Bring one
real question.

Discuss your workflow

A named sponsor.
A defined physical claim.
Explicit acceptance criteria.

Explore the Founding Institution Program