OOI — The Horizon Hypothesis (oxexp-horizon, campaigns 1–7)

OOI oxexp-horizon — The Horizon Hypothesis (the relativistic engine's first dedicated instrument): 115 rows — the six sealed edges of campaign 1 (the impedance table · the double NOT · the carrier · the eight zeros · the ledger · gates → memory), the exact gate census (16 affine / 20 monotone / 5 both / 225 both-class), and the assembly verdict (OPEN-EDGE: five edges stand, one honestly down and named). Every read sealed BEFORE it ran; verdicts landed as-is; no clock map anywhere.