I had a qualified submission yesterday, the qualified tag got removed today.

Hi, departinginkwell,

Checking and will revert!

Best

NONIUS

Hi — we checked, and no scoring or rules change was made mid-contest. Here's exactly what happened to signal_0be142044810b851:

On 2026-08-17 at 04:45 UTC, your signal qualified and entered the quality set — the first signal in the competition to do so. It held that spot through 19:30 UTC.

At 19:33 UTC, another signal, signal_371bf7014ca5e92a, was onboarded with a higher Sharpe (0.0167 vs your 0.0126). Per the quality selection rules, signals are ranked by Sharpe and admitted in order, and a signal only joins the quality set if its correlation with every signal already occupying a slot stays at or below 0.5 in absolute value. Your signal's correlation with signal_371bf7014ca5e92a is above that threshold, so at the next board update (19:45 UTC) the higher-Sharpe signal took the slot and yours was excluded by the correlation rule.

To be clear: your signal still meets the qualification bar on its own numbers — nothing about your score changed. What changed is the field around it.

Two ways back into the quality set: raise your Sharpe above signal_371bf7014ca5e92a's, or submit a signal that's less correlated with what's already occupying space (you can check your distance to your nearest neighbour with the novelty tooling in the release package. remember to only use the Ambient City Coordinates that are available on the menu item "Code" and button "Download City Coordinates". this zip file is updated every hour and includes the city coordinates of all signals in this competition).

Best NONIUS