Tunnel, spiral, lattice, cobweb — replayed exactly.
A bounded four-form visual codec, byte-exact · ZPE-Mental
Four endogenous visual forms — tunnel, spiral, lattice, cobweb — round-trip through a 20-bit wire format to byte-exact identity across a Rust-native fast path and a Python reference. Non-visual prompts collapse to a bounded fallback. No cognition, clinical, or autobiographical claim is made — coverage outside these four forms is out of scope.