Evidential State Architecture

Evidence before assertion.

EviState creates persistent, independently verifiable records for digital content, communications and documents. It helps people, organisations, platforms and regulators determine who stood behind an item, what state was recorded and what changed afterwards.

Three launch products

One architecture, applied where accountability matters.

Each product records a different kind of consequential state while preserving the same discipline: attributable source, bounded claims, independent inspection and visible lifecycle change.

Public demonstrations

ES Record

Accountability and provenance for published content.

Record the accountable source, official channel, declared context, publication state and later changes behind digital content.

Explore ES Record
Controlled implementation

ES Mail

Verifiable state for consequential communications.

Preserve who sent a communication, what was issued, the relevant authority and how the recorded state changes over time.

Explore ES Mail
Controlled pilot

ES Stamp

Exact-file evidence for documents and images.

Connect a visible inspection carrier to a signed record for the exact issued representation, without treating the visible mark as the evidence itself.

Explore ES Stamp

What the architecture preserves

Who acted, what existed and what changed.

Cryptography protects records. EviState also preserves the evidential context needed to understand what a signature or verification result actually establishes.

Accountable source

Identify the organisation, creator or authorised account standing behind a communication, item or record.

Recorded state

Preserve what existed at the relevant point in time, including the exact representation and declared context where applicable.

State continuity

Show correction, withdrawal, supersession or reclassification without erasing the earlier evidence trail.

Claim boundary

Verification is not endorsement.

  • EviState does not certify that an opinion or allegation is true.
  • EviState does not become a censor, regulator or police force.
  • EviState does not require a central database of children's identities or browsing histories.
  • The record preserves evidence; the recipient or competent authority applies the relevant policy, law or judgement.

Policy and regulated environments

Auditability without platform-specific promises.

EviState can support technology-neutral frameworks in which access or distribution depends on authenticated source, declared conditions, permission evidence and an attributable platform decision. The architecture supplies evidence; it does not outsource public policy or regulatory judgement to a private technology provider.

Company and contact

EviState Holdings Limited.

The Courtyard Office, 16 Bell Street, Henley-on-Thames, Oxon, RG9 2BG.