Event-Sourced Planetary Systems Architecture

Status

Current repository artifact for IARPG-OPS-2 2.0.18-wip. Review status: reviewed with limitations for scenario literacy and public explanation. The preserved source file remains individually addressable as provenance. This report is not an official IARPA publication.

Purpose

Extract event-sourcing, state-boundary, temporal-ledger, rendering, and uncertainty concepts from the supplied planetary-atlas architecture without adopting its game build plan.

Scope

This canonical report covers the user-supplied file IARPA SimEarth Game Architecture part 2.md. It is authoritative for repository provenance, the bounded synthesis below, and IARPG content-routing decisions. It does not establish official agency affiliation, scientific model validity, public-health guidance, weapons effects, real-world geopolitical prediction, or a current software implementation.

Executive Summary

The report proposes a persistent planetary simulation with a 3D globe, asynchronous backend, event sourcing, deterministic system models, and generative event narration. The repository retains event-history and state-separation concepts because they align with IARPG campaign records and branch replay. It rejects the “Integrated Artificial Reality Planetary Atlas” expansion of IARPA, any implication of official affiliation, and the proposed VR/MMO implementation as current site scope.

Evidence Reviewed

Preserved source file
Source collection: planetary-systems-and-scenario-modeling
Source SHA-256: 3dcc1a915686b4f06f8e0d03c5530661d85f9eba05d3800ce3abdcb236708fda
Source identity: user-supplied Markdown described as IARPA-related material; not authenticated as an official IARPA publication.
IARPA mission — official agency identity, research mission, and non-operational boundary (accessed 2026-07-22).
IARPA research programs — official program directory (accessed 2026-07-22).
GAO infectious disease modeling practices — communication, model description, verification, and validation (accessed 2026-07-22).
NIST digital-twin credibility work — verification, validation, and uncertainty considerations (accessed 2026-07-22).
IARPA COSMIC — official geospatial program description (accessed 2026-07-22).
IARPA HAYSTAC — official movement-modeling program description and privacy framing (accessed 2026-07-22).
IARPA BENGAL — official LLM threat and resilience program description (accessed 2026-07-22).
IARPA SINTRA — official space-debris research description (accessed 2026-07-22).

Reviewed Synthesis

Publication Decision

Retain the source as preserved research evidence. Reuse only the bounded statements in this section and the repository-authored findings below. Do not treat the original title, acronym expansion, code, quantitative claims, named technology stack, or scenario outputs as current fact without a new review.

Claim Dispositions

Report data table: Claim ID / Topic / Disposition / Current bounded statement
Claim ID	Topic	Disposition	Current bounded statement
`PSR-OPS2-218-04-01`	IARPA name	attribution-corrected	IARPA means Intelligence Advanced Research Projects Activity; “Integrated Artificial Reality Planetary Atlas” is a fictional phrase and must not imply agency affiliation.
`PSR-OPS2-218-04-02`	event sourcing	retained-method-guidance	Retain immutable event history, replay, branching, correction, and source-state provenance as content-design patterns.
`PSR-OPS2-218-04-03`	VR architecture	rejected-for-public-reuse	Do not claim that IARPG is building a VR-first planetary atlas or persistent simulation backend.
`PSR-OPS2-218-04-04`	generative event layer	bounded	Allow generated summaries only after deterministic schema validation; never let them author authoritative state.
`PSR-OPS2-218-04-05`	technology performance	requires-current-verification	Treat frame budgets, runtime choices, and vendor-specific architecture as proposals requiring current testing.
`PSR-OPS2-218-04-06`	program references	requires-current-verification	Use only official IARPA descriptions for current agency programs and preserve the agency’s non-operational research boundary.

Attribution, Fairness, and Safety Boundary

IARPA is the Intelligence Advanced Research Projects Activity, a U.S. research organization that invests in high-risk/high-payoff research for Intelligence Community challenges and is not itself operationally focused. The phrase “Integrated Artificial Reality Planetary Atlas” is a fictional construction in the supplied material and must never be presented as the agency’s name, product, endorsement, or program. Apply equal evidence standards, disclose uncertainty, include rights and affected-community consequences, and keep all reuse non-actionable.

Reuse Rule

Use the smallest applicable bounded statement above. Re-check current agency programs, laws, software, vendors, performance, market data, and scientific claims against current primary or authoritative sources before public factual reuse.

Findings

Event sourcing is useful when a system must explain how it reached a state, replay prior decisions, compare branches, and preserve corrections.
A continuous visual layer should consume validated state deltas rather than own authoritative simulation logic.
Temporal resolution should match the decision question; geological, institutional, and operational changes should not share one arbitrary tick.
Generative narrative can label or summarize events only after schema validation and deterministic acceptance.
IARPG can use these ideas to explain campaign history, institutional cascades, and long-horizon scenario design without implementing a planetary digital twin.

Decisions or Recommendations

Route public readers to the Scenario Modeling and Systems Thinking page rather than to implementation snippets in the preserved source.
Label every model family with purpose, inputs, assumptions, state variables, outputs, uncertainty, verification, validation, affected communities, and prohibited interpretations.
Prefer side-by-side scenario comparison, reversible state history, and accessible tables over spectacular but unexplained visualization.
Keep real IARPA references confined to accurate, sourced descriptions of the agency and its public research programs.
Preserve the original source unchanged in the source archive, but do not duplicate unsafe or misleading implementation detail into current public guidance.

Risks and Limitations

The preserved source contains unsupported, time-sensitive, implementation-specific, and sometimes hazardous detail.
This review is editorial and architectural; it is not scientific peer review, model accreditation, public-health review, legal review, weapons-effects validation, or security certification.
Official program pages can change after the research cutoff; future releases must re-check time-sensitive references.
A scenario can improve reasoning while still embedding bad assumptions. Visible structure does not prove real-world validity.

Validation Performed

Verified the preserved source SHA-256 and one-to-one canonical mapping.
Compared agency identity and selected program descriptions against official IARPA pages on 2026-07-22.
Compared model-credibility language with GAO and NIST guidance.
Reviewed the synthesis for attribution, safety, accessibility, international fairness, uncertainty, and non-prediction boundaries.
Verified repository-relative links and required report sections through the local memory and source-integrity validators.

Memory References

[Planetary Systems Research Integration and Scenario Modeling Report](planetary-systems-research-integration-and-scenario-modeling-report.md#findings)
[Rapid Deep Research Methodology and Guidance](rapid-deep-research-methodology-and-guidance.md#findings)
[Equal Standards Across Unequal Records](equal-standards-across-unequal-records-international-institutional-fairness-rights-and-evidence-audit.md#mandatory-analytical-distinctions-and-rights-safeguards)

Supersession Status

Current for IARPG-OPS-2 2.0.18-wip until superseded by a later reviewed synthesis. The preserved source remains archival provenance and does not override active .uai memory or verified implementation.