xkcd Geohashing http://wiki.xkcd.com/geohashing/Main_Page XKCD comic #426 contains an algorithm that generates random coordinates across the graticule every day. http://carabiner.peeron.com/xkcd/map/map.html?date=2026-10-05&lat=46&long=14&zoom=8&abs=-1 2026-10-05: 46.142407 14.756378 Latitude: 46.14240712501499 <br />Longitude: 14.75637793149649 46.14240712501499 14.75637793149649 Mon, Oct 5 2026 15:30:00 +0100 2474cb18a822a44dc1a1fbef318d6725 http://carabiner.peeron.com/xkcd/map/map.html?date=2026-10-04&lat=46&long=14&zoom=8&abs=-1 2026-10-04: 46.4783 14.494617 Latitude: 46.47830006463944 <br />Longitude: 14.49461670688907 46.47830006463944 14.49461670688907 Sun, Oct 4 2026 15:30:00 +0100 7a71df7f4d126e6e7e9f335424ce53c7 http://carabiner.peeron.com/xkcd/map/map.html?date=2026-10-03&lat=46&long=14&zoom=8&abs=-1 2026-10-03: 46.147244 14.421677 Latitude: 46.14724363889677 <br />Longitude: 14.42167665812766 46.14724363889677 14.42167665812766 Sat, Oct 3 2026 15:30:00 +0100 25b1c2559b0ddb856bf300602515ee4f http://carabiner.peeron.com/xkcd/map/map.html?date=2026-10-02&lat=46&long=14&zoom=8&abs=-1 2026-10-02: 46.872407 14.51703 Latitude: 46.87240730818927 <br />Longitude: 14.51703046619669 46.87240730818927 14.51703046619669 Fri, Oct 2 2026 15:30:00 +0100 df5615d976dd2071845c1bcf59b576dc