VESVerifiable Evidence Standard
Version 1.2 Draft
VES 1.2 DraftLatest draft · 2026-09-20

VES 1.1 remains active and citable.

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Read VES 1.2

Version history

Changelog

Material changes are dated, versioned and preserved so implementers can identify the semantics that applied to an evidence package.

Latest draftVES 1.2 DraftPublished:

For implementation review. VES 1.1 remains the current active, citable version until VES 1.2 is formally published.

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VES 1.2 Draft — 2026-09-20

  • Introduced the public VES Decision Envelope and External Evidence Object wrapper.
  • Defined six separate verification dimensions.
  • Established Verified, Qualified, Incomplete, Indeterminate and Failed result statuses.
  • Renamed the level model to Decision-Evidence Maturity.
  • Published Draft 2020-12 schemas and fictional claims-referral test vectors.
  • Clarified the boundary between runtime evidence, governance evidence and a complete consequential decision-state.
  • Removed certification marks and legal-admissibility claims from the public model.

Naming clarification — 2026-09-18

Naming clarification — 2026-09-18: the standard was previously expanded as “Veriscopic Evidence Standard.” It is now named the Verifiable Evidence Standard to describe the property the standard enables. Veriscopic remains its steward.

Change policy

Major versions may change required public semantics. Minor versions may add compatible fields, profiles or definitions. Patch versions correct errors without changing intended semantics. Draft versions may change before stabilisation and should always be cited with the draft label.