(a) An example day of MapHub, as its viewer shows it: the 23 papers (of 262) that reached 30 for some participant on 2026 August 25, numbered by average score. (b), (c) The share of each rater’s top 5% (b) and top 15% (c) found, against the share of astro-ph papers read in order of score. Columns are pooled and weighted back to uniform sampling; bands are 68% bootstrap intervals.