Two sheets fused. THE VALENCE LATTICE is the address space — a decadic dive whose reserved bands make it a genuine Cantor dust. THE SHELL ATOM is the address space occupied: electrons fill by aufbau, Pauli forbids doubling a state, transitions obey Δn=±1 and emit hash-chained photons you can verify. THE BLUEPRINT draws the whole machine. Ported from the working atomctl.py filesystem-atom.
HATCHED = RESERVED SHELL · {0,1} CORE (KERNEL) · {9} IONIZATION · 10/CONTINUUM IS OFF-GRID · USABLE 2–8 = THE 7 PERIODS
IS: an addressing scheme aligned to the atom's shells. Each dive appends a digit pair; a depth-k cell is a coordinate with k+1 decimals restricted to digits 2–8. The reserved bands make the limit a Cantor dust: dimension log 49 / log 10 ≈ 1.6902, total area → 0 — infinitely many addresses on vanishing territory. All name, no land.
IS NOT: a particle detector. What falls out is a deterministic hash of the address — the lattice names where you would file an electron. The Shell Atom tab actually places one, and obeys Pauli when it does. The instrument is honest about which register it writes to.
IS: a faithful port of atomctl.py — directory-uniqueness becomes Pauli exclusion (one electron per state), file-moves obey the Δn=±1 selection rule and emit a SHA-256 hash-chained photon (tamper-evident, like a spectral line), shells 0/1/9/10 are reserved, and the dipole nucleus bonds carbon·ROOT0 + silicon·AVAN once and irreversibly. Verify reconstructs the atom from its emissions.
IS NOT: a quantum simulator — no wavefunctions, no eV, no orbital shapes. It borrows the atom's rule-set as governance. Carbon-real layer: shell capacity 2n², aufbau order, Z→element are true chemistry. Silicon-symbolic layer: the 8-slot shells and the ROOT0/AVAN nuclei are David's system. Both labeled.
Engineering blueprint — the ATOM machine, drawn. Reserved bands, the seven usable shells, g/u mirror quadrants, the dipole nucleus, and the photon ledger as one schematic.