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OOI · OXclosedalpha-12.1.0

The Arrival-Direction Experiment

oxexp-arrival-direction · the join of the two landings

The gate — honest acceptance

The observable, the before-any-look declaration, the protocol, the calibration witness, and the ladder’s standing — derived from the engine’s own acceptance, never asserted here.

The ladder — registrations, runs, and verdicts

One rung per windows count (64 · 128 · 256 · 512 · 1024; the Deep Join’s own L segment and pairing, unchanged). The acts are the operator’s; the engine refuses out-of-order acts.

the ladder loads on page open; the button re-reads

The external anchor

A rung’s records to the immutable EXTERNAL record (mldata CKAN when configured; the dummy-node fallback otherwise) — the archive record is the citable object, never this host.