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=2026-01-07&lat=46&long=14&zoom=8&abs=-1
2026-01-07: 46.457071 14.497984
Latitude: 46.45707139124981 <br />Longitude: 14.49798359054701
46.45707139124981 14.49798359054701
Wed, Jan 7 2026 15:30:00 +0100
7502a1755aeb18787f7bda435814f7a1
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http://carabiner.peeron.com/xkcd/map/map.html?date=2026-01-06&lat=46&long=14&zoom=8&abs=-1
2026-01-06: 46.970689 14.399753
Latitude: 46.97068850440296 <br />Longitude: 14.39975320867757
46.97068850440296 14.39975320867757
Tue, Jan 6 2026 15:30:00 +0100
f87f0ab5038ce443665639edbdc18488
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http://carabiner.peeron.com/xkcd/map/map.html?date=2026-01-05&lat=46&long=14&zoom=8&abs=-1
2026-01-05: 46.139886 14.287856
Latitude: 46.13988609700164 <br />Longitude: 14.28785582505703
46.13988609700164 14.28785582505703
Mon, Jan 5 2026 15:30:00 +0100
23cf9343c981b61e49b0eb5a9542f8c1
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http://carabiner.peeron.com/xkcd/map/map.html?date=2026-01-04&lat=46&long=14&zoom=8&abs=-1
2026-01-04: 46.651311 14.511838
Latitude: 46.65131077394902 <br />Longitude: 14.51183755169597
46.65131077394902 14.51183755169597
Sun, Jan 4 2026 15:30:00 +0100
a6bc4d89a4bb0c0a8307c929661d8cab