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=2026-06-01&lat=46&long=14&zoom=8&abs=-1 2026-06-01: 46.540327 14.372561 Latitude: 46.54032690384169 <br />Longitude: 14.3725606933615 46.54032690384169 14.3725606933615 Mon, Jun 1 2026 15:30:00 +0100 8a52dd2d2625765e5f602339c342102d http://carabiner.peeron.com/xkcd/map/map.html?date=2026-05-31&lat=46&long=14&zoom=8&abs=-1 2026-05-31: 46.291511 14.429346 Latitude: 46.29151122236762 <br />Longitude: 14.42934586249554 46.29151122236762 14.42934586249554 Sun, May 31 2026 15:30:00 +0100 4aa07abe7c65e7516de99c46175d8287 http://carabiner.peeron.com/xkcd/map/map.html?date=2026-05-30&lat=46&long=14&zoom=8&abs=-1 2026-05-30: 46.419254 14.052869 Latitude: 46.41925433472169 <br />Longitude: 14.05286914597724 46.41925433472169 14.05286914597724 Sat, May 30 2026 15:30:00 +0100 6b54408855fdf9430d88d514f08fd0a0 http://carabiner.peeron.com/xkcd/map/map.html?date=2026-05-29&lat=46&long=14&zoom=8&abs=-1 2026-05-29: 46.164116 14.032276 Latitude: 46.16411601959013 <br />Longitude: 14.032275580605607 46.16411601959013 14.032275580605607 Fri, May 29 2026 15:30:00 +0100 2a0381e8e3aabd560843366329161011