Integration, the v2 atlas, and the project's closure

Chunk E is the integration pass that closes Sim 2. It re-derives every committed digest from the artifacts on disk, so “the chain reproduces” is performed, not asserted. All seven build and stress-test artifacts reproduce bit-for-bit, the engine is byte-unchanged, the firewall held, and nothing is tuned — so the project closes.

The integration pass introduces no new hypothesis. It re-reads the whole surviving chain, re-derives every committed digest from the artifacts on disk, aggregates the per-gap ledger with the grades the modules emitted, checks the end condition, and emits the v2 atlas. An integration pass has exactly one failure mode — a recorded survivor that no longer reproduces — so its stress test is an end-to-end digest audit: recomputed == stored == committed-expected-sha for all seven artifacts, plus the M9 anchor bit-for-bit, the engine tree byte-unchanged, the firewall held, and chain-total new tuned constants = 0. It survived: sim2_complete = True, project_closes = True.

What the integration pass is

Chunk E closes Sim 2. It introduces no new hypothesis. The atlas module re-reads the whole surviving chain, re-derives every committed digest from the artifacts on disk — so “it reproduces” is an act, not an assertion — aggregates the per-gap ledger with the grades the modules themselves emitted, checks the project's end condition, and emits one canonical artifact plus one figure (the v2 atlas). The engine is read-only; new_tuned_constants = 0; the M9 anchor is asserted bit-for-bit.

The Stress Principle applied to an integration pass

An integration pass has exactly one thing that can break: a recorded survivor that no longer reproduces. So the atlas's stress test is the end-to-end digest audit — for every build and stress-test artifact, recompute its digest from content and require recomputed == stored == committed-expected-sha. If any artifact drifts, that is the break: it is recorded in broke_on, sim2_complete is set False, and the offending line is flagged for restart — never papered over. The audit is non-circular: the atlas re-derives each digest from the results content and compares against the independently committed expected-SHA file (it does not copy SHAs forward), and the kernel is guarded by engine_anchor_bitforbit() plus the full-tree / M0–M16-subtree byte-unchanged invariant.

The audit: all seven artifacts reproduce

The chain survived the audit, broke_on = []:

The aggregated per-gap ledger (the grades the modules emitted, unchanged): Gap 1 [L] in-silico (field causal window survives ST-1; peak ~3× above measured [O]); Gap 2 [L] in-silico (cortical micro-model survives ST-2; micro-model sufficient, kernel fork not triggered; gene-blind [O]); Gap 3 [L] in-silico (O×W crossover survives ST-3 — two separable axes; relative-selectivity / gene-blind [O]); Gap 4 [L] in-silico for the conscious/unconscious split (survives ST-4) + [O] within-unconscious ordering (collapsed — recorded honest negative); Gap 5 [O] OPEN by principle (the firewall blank).

The end condition

As computed by the atlas: sim1_status = COMPLETE (frozen, READ-ONLY), fillable_gaps_graded = True, gap5_firewall_blank_present = True, all_artifacts_reproduce = True, engine_invariant = True, firewall_held = True (claim = 0 on all; hard_open = 1 on all), new_tuned_constants_total = 0 → sim2_complete = True, project_closes = True. The M9 anchor R = 0.38961455156044245 reproduced bit-for-bit, and the full engine tree plus the M0–M16 subtree are byte-unchanged.

What “complete” means

“Complete” means the project's own end condition is met: every fillable gap survived its stress test or carries a recorded honest negative, Gap 5 stays the explicit firewall blank, and the whole chain reproduces with nothing tuned. It does not mean validated neuroscience or clinical guidance — these are in-silico model results. There is no Chunk F: the program's stated end condition is met, and any future work is a new program built atop this frozen, reproducing base, not a continuation of this whitepaper.

Firewall (Axis-A). Every quantity on this page is a structural quantity of an in-silico model — a sign, a margin, an ordering — and is not a felt state, an experienced quality, or a level of consciousness (consciousness_claim = 0; the hard problem stays open, hard_problem_open = 1). These are model results, not validated neuroscience and not clinical guidance. efficacy = 0; not medical advice.