◎ OS PUB Apache 2.0 ← All specifications

P151 — AIEP — Evidence Adversarial Defence Protocol

Publication Date: 2026-04-12 Status: Open Source Prior Art Disclosure Licence: Apache License 2.0 Author/Organisation: Phatfella Ltd Schema: AIEP_OS_SPEC_TEMPLATE v1.0.1 — https://aiep.dev/schemas/aiep-os-spec-template/v1.0.1

Field of the Invention

[0001] The disclosure relates to adversarial evidence integrity systems within computing environments.

[0002] More particularly, the disclosure concerns an evidence adversarial defence protocol for use within an Architected Instruction and Evidence Protocol (AIEP) system, enabling evidence ingestion pipelines to detect, quarantine, and record attempted adversarial evidence injections without relying on semantic anomaly detection or learned threat classifiers.

Framework Context

[0003] This invention operates within an Architected Instruction and Evidence Protocol (AIEP) environment as defined in United Kingdom patent application number GB2519711.2, filed 20 November 2025, the entire contents of which are incorporated herein by reference.

Summary of the Disclosure

[0004] A computer-implemented evidence adversarial defence protocol comprises: applying a version-bound AdversarialDefenceRuleset to each evidence artefact at ingestion; the AdversarialDefenceRuleset comprising structural integrity checks, provenance consistency checks, schema conformance checks, and cross-reference verification steps — each deterministic and rule-bound without semantic inference; on detection of a rule violation, computing a DefenceViolationHash as H(artefact_hash || violated_rule_id || violation_descriptor); quarantining the artefact and appending a DefenceViolationRecord to the adversarial evidence log; and returning a non-admissible outcome without partial ingestion.

[0005] The AdversarialDefenceRuleset is versioned and retrieved from the governance registry. No heuristic or learned-model-based anomaly detection is used.

[0006] The technical effect is modification of computing system behaviour by enforcing deterministic rule-bound adversarial evidence detection at ingestion, enabling auditable adversarial event records without reliance on opaque learned classifiers.

Claims

[0007] A computer-implemented method for evidence adversarial defence comprising: applying a version-bound AdversarialDefenceRuleset to ingested evidence artefacts; computing DefenceViolationHashes on rule violations; quarantining violating artefacts; and appending DefenceViolationRecords to the adversarial evidence log.

[0008] A system for evidence adversarial defence comprising one or more processors and a non-transitory computer-readable medium storing instructions to execute the method of claim 1.