The Structural Map of the Upstream Architecture

This document provides a structural map of the upstream layer of the Studio Y architecture. It does not summarize or interpret the upstream papers. Instead, it identifies the clusters, origin‑level objects, invariants, geometric and temporal structures, and macro‑scale expressions that together form the closed generative system defined in this release. The document also situates the historical preprint, outlines the interfaces between clusters, and specifies the entry points through which readers may orient themselves at different altitudes. It reserves conceptual space for additional upstream objects governing multi‑system coherence, which will be formalized in future work. This navigation layer functions as a membrane: it makes the upstream architecture legible without lowering altitude and prepares readers for the mid‑layer, where the structures defined here will be expressed in cognition, identity, language, narrative, biological regulation, and collective coherence.