Lineage-Preserving Cross-Mesh Import

Mechanism

A cross-mesh import is structured as an observation in the receiving mesh that carries the imported observation together with its lineage as published in the source mesh, preserving the original mesh identity. The import observation declares the source-mesh identifier, the source-mesh observation identifier, the import authority (a governance-credentialed entity in the receiving mesh authorized to perform the import), the receiving-mesh admissibility evaluation result, and the import time recorded against the receiving mesh's mesh-derived time per Chapter 17.

The import authority signs over the imported lineage. The signature covers the import-act assertions, namely the source identifiers, the admissibility result, and the import time, and binds them to the imported observation without re-signing the source observation's substantive content. The imported observation retains its original authority signature, its original credentialing chain, and its original lineage references back through the source mesh. A receiver presented with the imported observation evaluates two distinct credentialing chains: the importing mesh's signature validates the import act under the receiving mesh's governance, and the original chain validates the substantive observation under the source mesh's governance.

Walk-back is structural. A downstream operation in the receiving mesh, or in any further mesh that subsequently imports from the receiving mesh, can follow the preserved lineage to reach the original signer. Each import step exposes the import authority that performed it, allowing a reviewer to reconstruct the path the observation traveled across mesh boundaries. Where intermediate meshes performed taxonomy translations or admissibility-conditional restrictions, those acts appear as recorded layers in the lineage, not as silent modifications to the substantive content.

The mechanism operates without a prior shared authority or consensus protocol between the reconciling meshes. The receiving mesh does not require agreement from the source mesh on the import act, and the source mesh does not require notification of the import. The preserved credentialing chain is sufficient to validate the imported observation without a synchronous protocol between meshes. This independence supports coalition operations where meshes may be intermittently connected or operated under independent governance regimes, and where disconnection is treated as a persistent operating mode rather than a failure.

Operating Parameters

The import authority is a governance-credentialed boundary agent admitted with a defined scope, for example imports of a particular observation type from coalition-member meshes, and may not perform imports outside that scope. The scope declaration is itself a governance-credentialed object in the receiving mesh. Revocation of an import authority's scope is recorded as a credentialed governance act and applies prospectively without invalidating prior imports.

Admissibility evaluation is configurable along several axes: source-mesh authority recognition (which source-mesh credentialing chains the receiving mesh accepts), subject-matter scope (which observation types may be imported), temporal scope (acceptable age of source observations), and conditional predicates over receiving-mesh state. The admissibility evaluator's decision, including the rule applied and the input state observed, is recorded as part of the import observation's lineage.

Recognition of a source mesh is configured through governance acts that name specific source-mesh identifiers and bind them to the source mesh's credentialing authority. A new source-mesh recognition is added by governance signature, after which subsequent imports from that source mesh are evaluable. Because each admissibility decision is recorded in the import observation's lineage, historical imports remain evaluable against the recognition in force at import time.

The import lineage is recursive. An imported observation that itself contains imports from yet earlier meshes presents a multi-layer lineage, and receivers can follow the chain across each layer to reach the original signer. Governance policy in the receiving mesh governs how such multi-layer imports are admitted and evaluated.

Alternative Embodiments

In one embodiment, the import retains the source observation in the receiving mesh's store together with the importing authority's signature over its lineage. In a second embodiment, the source observation is retained by reference, with retrieval on demand, while the import observation's signature continues to bind the preserved lineage.

A further embodiment supports translated import. Where the receiving mesh's authority taxonomy differs from the source mesh's, a taxonomy translator per Chapter 28 produces equivalence attestations between the two authority taxonomies, mediating cross-authority admission rather than requiring the taxonomies to be unified. The source observation is retained unmodified, and the equivalence attestation is a separately credentialed object whose lineage references the import.

A further embodiment supports batch import, in which a sequence of source-mesh observations is imported under a single import act, enabling per-observation walk-back without per-observation overhead. This embodiment suits high-volume cross-mesh feeds.

Composition With Other Mesh Features

Lineage-preserving import composes with cross-domain cascade composition. A cross-domain mapping originating in the source mesh may be imported into the receiving mesh with its five-property governance chain intact, and a receiving-mesh composition authority may extend the chain with further mappings into receiving-mesh domains. The cross-mesh boundary appears as a layer in the lineage but does not break the cascade chain.

Composition with multi-authority resolution: an imported observation may participate as a source in a receiving-mesh resolution, and the resolution observation's lineage will reference the imported observation, transitively reaching the source-mesh signer. Where the receiving mesh's precedence rules differ from the source mesh's, the resolution authority's selection is recorded explicitly, with the source-mesh precedence remaining visible for forensic review.

Composition with the dispute mechanism allows a downstream party to dispute an import act (alleging that the import authority exceeded its scope, or that the admissibility evaluation was performed in error) without disputing the substantive source-mesh observation, or vice versa. The dispute targets a specific layer of the chain and is itself a credentialed observation whose lineage is preserved.

Composition with byzantine-robust handling allows the receiving mesh to import multiple corroborating observations from independent source meshes covering the same subject and to evaluate them under byzantine-robust admissibility. The lineage chain of each imported observation is independently preserved; corroboration does not collapse the chains into a single representative observation.

Distinction From Prior Art

Cross-mesh reconciliation is structurally distinguished from prior database replication and federated database protocols. These propagate state across replicas or federate query across stores, but they do not preserve the originating mesh's authority signature and lineage in a manner that a downstream reviewer can walk from a received value back to the original signer. The present mechanism preserves original mesh identity in imported observations rather than merging into a representative value.

The mechanism is distinct from blockchain-bridge architectures and analogous cross-chain transfer mechanisms. Bridges typically require consensus participation to admit a foreign observation, binding the receiving chain to the bridge's consensus assumptions. The present mechanism admits an imported observation under the receiving mesh's local admissibility evaluation, with no requirement for a single governance authority or consensus protocol to span the reconciling meshes, and the receiving mesh's governance retains independent control over which source-mesh authorities it recognizes.

The mechanism is distinct from cross-cloud identity federation, which asserts claims across trust boundaries but does not generally preserve a verifiable end-to-end chain to the original credentialing authority through arbitrary intermediate hops. Rather than requiring authority-taxonomy unification, the present mechanism mediates cross-authority admission through taxonomy-translation, producing equivalence attestations between authority taxonomies. The combination of governance-credentialed boundary crossing that preserves the originating mesh's authority signature and lineage, taxonomy-translation-mediated admission, and admission without a cross-mesh consensus protocol is the structural distinction.

Disclosure Scope

This article describes subject matter disclosed in U.S. Provisional Application No. 64/049,409. The disclosure encompasses the lineage-preserving import mechanism that preserves original mesh identity in imported observations, the governance-credentialed import authority, the configurable admissibility evaluator, source-mesh authority recognition, and the recursive walk-back capability. The disclosure encompasses single-layer, multi-layer, translated, and batch import embodiments. The disclosure encompasses composition with cross-domain cascade composition, multi-authority resolution, dispute mechanisms, and byzantine-robust corroboration.

The disclosure encompasses applications in cross-organization mesh integration, cross-jurisdiction integration, coalition operations, and any further application in which observations generated under one mesh's governance are made available within another mesh's governance with end-to-end auditable lineage.