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=2025-07-07&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
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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
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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
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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