xkcd Geohashing
http://wiki.xkcd.com/geohashing/Main_Page
XKCD comic #426 contains an algorithm that generates random coordinates across the graticule every day.
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http://carabiner.peeron.com/xkcd/map/map.html?date=2025-07-14&lat=46&long=14&zoom=8&abs=-1
2025-07-14: 46.602853 14.561024
Latitude: 46.60285276957981 <br />Longitude: 14.56102410419631
46.60285276957981 14.56102410419631
Mon, Jul 14 2025 15:30:00 +0100
9a548f21a5f7e0188f9f4693ca739cc1
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http://carabiner.peeron.com/xkcd/map/map.html?date=2025-07-13&lat=46&long=14&zoom=8&abs=-1
2025-07-13: 46.810916 14.851317
Latitude: 46.81091635857791 <br />Longitude: 14.85131721741449
46.81091635857791 14.85131721741449
Sun, Jul 13 2025 15:30:00 +0100
cf9836e7e22fec74d9efecd751249e74
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http://carabiner.peeron.com/xkcd/map/map.html?date=2025-07-12&lat=46&long=14&zoom=8&abs=-1
2025-07-12: 46.125576 14.014584
Latitude: 46.12557560372647 <br />Longitude: 14.014584282961507
46.12557560372647 14.014584282961507
Sat, Jul 12 2025 15:30:00 +0100
2025b9072e3d565703bbcbaa5af3d30a
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http://carabiner.peeron.com/xkcd/map/map.html?date=2025-07-11&lat=46&long=14&zoom=8&abs=-1
2025-07-11: 46.511938 14.247255
Latitude: 46.51193811580274 <br />Longitude: 14.24725471274278
46.51193811580274 14.24725471274278
Fri, Jul 11 2025 15:30:00 +0100
830e6058f2d91f503f4c15b9031a9e58