Record InterfaceCanon boundary acceptance and adoption status

Assistant: codex
Assistant-Model: gpt-6-astra
Assistant-Session: 01a087ca-d0c6-7de0-854c-bf13a67b0533

infospace/interfaces/README.md

@@ -5,6 +5,8 @@ under [accepted ADR-006](../../../the-custodian/canon/architecture/adr-006-canon
 
 - [commerce-canon interface](../../../commerce-canon/infospace/interfaces/federation.yaml)
 - [the-custodian interface](../../../the-custodian/canon/interfaces/federation.yaml)
+- [InterfaceCanon boundary review](interface-canon-boundary.md) — scoped acceptance
+  of the draft 0.1.1 extension boundary, with pinned sources and review evidence.
 
 Each export names its source document and current maturity. Imports identify
 actual dependencies; reciprocal navigation does not imply reciprocal semantic

infospace/interfaces/interface-canon-boundary.md

@@ -0,0 +1,56 @@
+# InterfaceCanon extension boundary
+
+Status: accepted for the semantic boundary documented below, reviewed by Codex
+in the InfoTechCanon repository on 2026-09-09. This is an agent review, not a
+claim of separate human sign-off or a published peer merge.
+
+Review target: interface-canon draft 0.1.1 at
+`1fc82ec6655ed286cea3be284e33d08e7b27edc3`. Proposed patch: interface-canon
+`reviews/INTERFACE-WP-0004/info-tech-canon.patch` in review package
+`6b33ac2388190207c4373e6f288922ce5c0b0413`.
+InfoTechCanon review base and import source:
+`8eb1c83f2e119de57e7ad448b901381f8e92fb57`.
+
+InterfaceCanon derives interface-domain terminology from FIAM in
+facetted-interfaces and references shared InfoTechCanon concepts. It supplies a
+focused interface model while InfoTechCanon retains the shared roots.
+
+## Accepted dispositions
+
+- FIAM Port is contract participation, distinct from ITC-NET network Port.
+  Network profiles also distinguish physical/device ports from transport ports;
+  the distinction is broader than the TCP example alone.
+- InterfaceContract describes semantic interface behavior. Landscape's Interface
+  seed and Network's attachment-point Interface are contextual mappings, not
+  universal exact aliases.
+- FIAM Endpoint locates or selects a Binding. Network Endpoint is related where
+  realization is network-based; local bindings need not have a network endpoint.
+- InformationResource/InformationShape map contextually to Data concepts.
+  Dataset, DataObject, Record, DataType, and Constraint retain their shared owners;
+  these mappings establish neither universal subtyping nor exact equivalence.
+- FIAM Representation concerns participation encoding; Data Representation also
+  describes value-level forms. Consumers must qualify these scopes.
+- Describing artifacts may be KnowledgeArtifact and Evidence Source. An Evidence
+  Source is an addressable container with a relevant version or capture where
+  mutable; Evidence is a separate assertion drawn for an explicit interest.
+  An artifact implementing a contract is not automatically a KnowledgeArtifact.
+
+## Evidence and limits
+
+Reviewed `infospace/models/interface/InterfaceCanonInterfaceModel.md`,
+`infospace/mappings/review-2026-09-09.md`, and
+`infospace/models/interface/imports.json` at the InterfaceCanon revision above.
+All seven manifest SHA-256 values match Git blobs at the declared InfoTechCanon
+source revision, and those files are unchanged in the review checkout:
+ITC-LAND, ITC-IDENT, ITC-EVID, ITC-GOV, ITC-DATA, ITC-INFOSPACE, and ITC-NET.
+
+The proposed boundary is accepted with the clarifications above. This reciprocal
+reference does not extend the completed identity/commerce ownership ledger,
+transfer shared ownership, or establish a reverse semantic dependency.
+InterfaceCanon remains draft; this review supplies no consumer implementation or
+deployment evidence and does not satisfy INFO-WP-0019-T06's emission-cadence gate.
+
+The file's eventual containing commit identifies the applied review revision;
+the review base above must not be represented as a merge commit. Work and
+verification are tracked in
+[INFO-WP-0026](../../workplans/INFO-WP-0026-interface-canon-boundary-review.md).