Urgent: submission limit is rolling 24h, not the published UTC-day reset

ARC White-Box Estimation Challenge 2026
#1

The challenge overview and launch announcement state that the 50-entry limit is per UTC day and resets at 00:00 UTC. Our account is currently blocked, but the submission page says submissions return only at 2026-08-01 08:11:02 UTC—after Phase 1 closes at 2026-07-31 23:59 UTC. The CLI returns the same timestamp with HTTP 403.

This appears to enforce a rolling 24-hour window, contrary to the published UTC-day rule, and prevents use of the July 31 allowance participants planned around. Could AIcrowd urgently correct/reset the counter or clarify a valid way to submit before the Phase-1 deadline?

#2

@ely2sh : We double checked that the configuration is correct, and the challenge uses a fixed-window for submission quotas. We have received 50 submissions from your account on this date:

321680, 321681, 321682, 321684, 321685, 321686, 321688, 321689, 321690, 321691,
321692, 321694, 321696, 321697, 321699, 321701, 321704, 321706, 321707, 321709,
321711, 321712, 321715, 321716, 321719, 321722, 321724, 321726, 321728, 321732,
321736, 321738, 321740, 321741, 321746, 321748, 321757, 321764, 321767, 321768,
321770, 321772, 321776, 321781, 321802, 321807, 321816, 321818, 321823, 321827

with the first one being: 321680, 08:11:02 UTC
and the last one being: 321827. at 13:59:41

Agree the error message is misleading, and we will fix that right away.

Best of luck