P155 — AIEP — Evidence Federation and Cross-Deployment Sharing 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 federated evidence sharing systems within distributed computing environments.

[0002] More particularly, the disclosure concerns an evidence federation and cross-deployment sharing protocol for use within an Architected Instruction and Evidence Protocol (AIEP) system, enabling evidence artefacts to be shared between independent AIEP deployments while preserving provenance integrity, admissibility status, and governance boundary compliance.

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.

[0004] The present invention extends the federated evidence network standard defined in P156, cross-node evidence replication defined in P169, and sovereign knowledge node protocols defined in P144 while remaining independently implementable as described herein.

Summary of the Disclosure

[0005] A computer-implemented evidence federation and cross-deployment sharing protocol comprises: establishing federation agreements between AIEP deployments as signed FederationAgreementRecords specifying permitted evidence categories, sharing rules, and sovereignty constraints; on a cross-deployment evidence request, validating the request against the applicable FederationAgreementRecord; computing a FederationTransferHash as H(evidence_artefact_hash || requesting_deployment_id || federation_agreement_id || transfer_timestamp); wrapping the evidence artefact in a FederationTransferPacket containing the original provenance chain, admissibility status, sovereignty markers, and FederationTransferHash; transmitting the FederationTransferPacket and appending a FederationTransferRecord to the sharing log; and at the receiving deployment, validating the FederationTransferPacket provenance chain before admitting the artefact to the local evidence store.

[0006] Receiving deployments evaluate received artefacts against their own admissibility rules. Acceptance by the originating deployment does not guarantee acceptance at the receiving deployment.

[0007] The technical effect is modification of computing system behaviour by enforcing provenance-preserving governed evidence sharing between independent AIEP deployments, enabling federated knowledge networks without provenance chain breaks.

Claims

[0008] A computer-implemented method for evidence federation and cross-deployment sharing comprising: establishing FederationAgreementRecords; validating cross-deployment requests against agreements; computing FederationTransferHashes; wrapping evidence in FederationTransferPackets with provenance chains; and requiring receiving deployments to independently evaluate admissibility.

[0009] A system for evidence federation and cross-deployment sharing comprising one or more processors and a non-transitory computer-readable medium storing instructions to execute the method of claim 1.

Published as open-source prior art under Apache License 2.0. All rights reserved by Phatfella Ltd. Patent application rights reserved.