Step 076 — E₁ physics complete

Book V closes the $E_0$ to $E_1$ construction.

Book / layer. Book V · E1
Macro step. CS-06 — Build Measurement, Prediction, and Empirical Bridges
Short routes. https://prrp.site/s76 · https://prrp.site/s076

Status tags. bridge

Construction role

Book V closes the $E_0$ to $E_1$ construction. Book III identifies the physical carrier, Book IV reads the $T^2$-fiber as microphysical ontology, and Book V reads the ${\tau }^1$-base as temporal, gravitational, thermodynamic, and cosmological structure. The result is not full empirical validation; it is a complete internal physical grammar with explicit external-validation seams. Books VI – VII receive that physical grammar and ask when carrier regimes can preserve, transmit, decode, update, and finally reflect on code.

What this step earns

physics complete is made addressable as Step 076 in the fine-grained Construction Spine routing layer.

• Routing scaffold. Detailed earned-output extraction is pending the source-map pass.

What this step does not yet establish

This route exposes the RC3 construction step for inspection. It does not by itself establish peer review, empirical adequacy, or final manuscript-level source closure.

Source anchors

• Full Construction Spine RC3 whitepaper source (papers/whitepapers/panta-rhei-construction-spine-e0-e3/main.tex:999)

Manuscript extraction state: Detailed source anchors pending extraction.

Anchor classification: whitepaper source resolved; manuscript extraction pending; Registry extraction pending; TauLib extraction pending.

Formalization and verification

Registry links: Registry extraction pending.

TauLib modules: TauLib module extraction pending.

Dependencies

• Previous: Step 075 — Book V late-stage synthesis and macrocosm export surface
• Next: Step 077 — E₁ → E₂: life as predicate layer

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