CITATION.cff

cff-version: 1.2.0
message: "If you reference this defensive publication, please cite it as below."
title: "Six-Verb Product-Adapter Billing Spine with Dual-Plane Runtime-Gate Suspension"
abstract: >-
  This defensive publication discloses a billing-spine architecture in which every product registers exactly six frozen, idempotent, never-throw lifecycle verbs (provision, suspend, resume, park, purge, exportData) and thereby inherits a shared spine for checkout, entitlement, dunning, and data portability. Provision returns in bounded time by writing durable rows and enqueuing the slow build onto a bus-driven reconciler with capped exponential backoff and idempotent re-entry. The novel core is a dual-plane separation of concerns: a billing write plane records lifecycle as a single status column on entitlement and seat rows, while a spend read plane requires every metered surface to consult that status in-process — at its own runtime gate — immediately before it can incur any provider cost. Dunning at threshold performs an O(1) status-row flip; it tears down no resource, releases no wallet, and calls no provider API. Enforcement is delegated to the gates, which fail closed. Suspension is therefore instantaneous, exactly reversible without reprovisioning, and race-free against in-flight spend. We publish this as dated public prior art. Published 2026-07-03 to establish dated public prior art.
type: report
authors:
  - family-names: "Assuncao"
    given-names: "Gustavo"
    affiliation: "Gus IT LLC (Florida, USA)"
version: "1.0"
date-released: "2026-07-03"
license: AGPL-3.0-or-later
keywords:
  - billing spine
  - dunning enforcement
  - runtime gate
  - tenant lifecycle
  - fail-closed suspension
  - product adapter contract
  - idempotent reconciler
  - entitlement status
repository-code: "https://github.com/gusitllc/dual-plane-billing-spine-runtime-gate-suspension"