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=2025-07-07&lat=46&long=14&zoom=8&abs=-1 2025-07-07: 46.882081 14.373936 Latitude: 46.88208065555025 <br />Longitude: 14.37393603807832 46.88208065555025 14.37393603807832 Mon, Jul 7 2025 15:30:00 +0100 e1d009b005c7a16e5fba45ae579b3584 http://carabiner.peeron.com/xkcd/map/map.html?date=2025-07-06&lat=46&long=14&zoom=8&abs=-1 2025-07-06: 46.59932 14.728173 Latitude: 46.59931973586139 <br />Longitude: 14.72817262430515 46.59931973586139 14.72817262430515 Sun, Jul 6 2025 15:30:00 +0100 996d04a95f3c4abeba6985673bad20b4 http://carabiner.peeron.com/xkcd/map/map.html?date=2025-07-05&lat=46&long=14&zoom=8&abs=-1 2025-07-05: 46.474029 14.204265 Latitude: 46.4740286352929 <br />Longitude: 14.20426529370479 46.4740286352929 14.20426529370479 Sat, Jul 5 2025 15:30:00 +0100 7959f0cdf353ccc9344abaf42b7ea32f http://carabiner.peeron.com/xkcd/map/map.html?date=2025-07-04&lat=46&long=14&zoom=8&abs=-1 2025-07-04: 46.040387 14.046381 Latitude: 46.040387091859864 <br />Longitude: 14.046381001595098 46.040387091859864 14.046381001595098 Fri, Jul 4 2025 15:30:00 +0100 0a56cef6b7fa5d390bdfa01501b524d4