id: the-custodian/federation-interface
title: the-custodian Canon Federation Interface Card
consumer: the-custodian
canon_surfaces:
- CUST-ADR-006
status: published
version: 0.1.0
owner: the-custodian
scope: CFED-WP-0001 federation boundary; not a complete inventory of the repository or a runtime adoption
  claim
schema_source:
  repository: info-tech-canon
  path: infospace/schemas/interface-card.schema.yaml
authority:
  repository: the-custodian
  artifact: CUST-ADR-006
  path: canon/architecture/adr-006-canon-federation-concept-ownership.md
  revision: accepted-1
  source_commit: f895d2d0ab49aab2f278f63388d9a683ecac6c63
  sha256: a454df0e1d227f99ebb36c4abd45c76cc12579086d34f0c0ccfccfd7f4790823
peers:
- repository: info-tech-canon
  card: infospace/interfaces/federation.yaml
  relationship: governed domain canon
- repository: commerce-canon
  card: infospace/interfaces/federation.yaml
  relationship: governed domain canon
exports:
- artifact: CUST-ADR-006
  kind: ecosystem-governance
  path: canon/architecture/adr-006-canon-federation-concept-ownership.md
  status: accepted
  concepts: []
  governs:
  - info-tech-canon
  - commerce-canon
  revision: accepted-1
imports: []
source_of_truth:
  governance: the-custodian/CUST-ADR-006
  ownership_assignment: prj-canon-federation/ledger/concept-ownership.json
  definitions: exporting canon model documents; seed areas carry no authored domain model
mapping_rules:
- Import a concept from its declared owner; do not copy a definition as a competing local root.
- Identifier stays itc-ident; Registry Identifier and Proxy Commercial Identifier are Commerce specializations.
- Evidence assertions and Evidence Source containers stay distinct under itc-evid.
- Identity Assurance Level, governance AssuranceCase/AssuranceConclusion, and Counterparty Assurance Gradient
  stay distinct.
- Family is a separate seed; Community and Household are itc-org draft social collectives.
known_deviations:
- This card uses the existing JSON Schema string consumer / array canon_surfaces shape; richer Core section
  24 fields are additive.
- Exports describe availability, not proof of adoption. No reverse Commerce domain import by InfoTechCanon
  or Custodian is asserted.
- Custodian governs both domain canons but owns none of their domain semantics.
expectations:
- Validate reciprocal cards and pinned sources with prj-canon-federation/tools/validate_interfaces.py.
- Review changed source versions explicitly and retain earlier import manifests.
- Fleet reference acceptance remains CFED-WP-0001-T09; demand-driven residuals remain T10.