Difference between revisions of "Main Page"

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(→‎How to play?: Reorder - you don't need an account to geohash.)
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[[Image:Coordinates.png|thumb|301 px|[[The Algorithm]], as shown in [[xkcd]] [http://www.xkcd.com/426/ comic #426].]]
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__NOTOC__
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[[Image:Portland Sample Coord.png|thumb|222 px|Use [http://xkcd.com/geohashing this tool] to find geohashing coordinates for a given area and date.]]
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= The Adventure Starts Here =
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[[Image:Noterminal portland sample_2.jpg|thumb|222 px|[[User:NoTerminal|NoTerminal]] and [[User:Drache|Drache]] at the [[2008-02-19 45 -122|February 19, 2008 coordinates]] for Portland, Oregon]]
 
  
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Welcome to the '''Geohashing Community Wiki'''.  [[Geohashing]] is a ''Spontaneous Adventure Generator'', brought to you by the [[xkcd]] webcomic.
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'''[[Geohashing]] is a game of spontaneous adventure generation played around the world since 2008.''' You will explore random locations, meet fellow geohashers, brave the elements, unlock [[Achievements|achievements]], and then come back here to '''[[expedition|document your expedition]]'''.
  
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== What is this? ==
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[[Image:Flag of Catalonia.png|15px]] [[Pàgina Principal|Català]] - [[Image:Flag of Germany.png|15px]] [[Hauptseite|Deutsch]] - [[Image:Flag of Spain.png|15px]] [[Image:Flag of Mexico.png|15px]] [[Image:Flag of Chile.png|15px]] [[Página Principal|Español]] - [[Image:Flag_of_France.png|15px]] [[Accueil|Français]] - [[Image:Flag of Italy.png|15px]] [[Pagina Principale|Italiano]] - [[File:Flag of Poland.png|15px]] [[Strona główna|Polski]] - [[Image:800px-Flag of Sweden.png|15px]] [[Huvudsida|Svenska]] - [[geohashing:translation|other languages]].{{QUOTER}}
  
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[[xkcd]] [http://www.xkcd.com/426/ comic #426], published on 21 May 2008, contains an [[algorithm]] that generates random coordinates around the world<sup>1</sup> every day. Everyone in a given [[Graticule|region]] gets the same set of coordinates.  As such, these coordinates can be used as destinations for adventures, ''à la'' [http://en.wikipedia.org/wiki/Geocaching Geocaching], or for local meetups.
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[[Image:Coordinates.png|thumb|400px|[[The Algorithm]] was invented for [[xkcd]] [http://www.xkcd.com/426/ comic #426], published on 21 May 2008.]]
  
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For a little more interactive discussion, consider joining [irc://irc.foonetic.net/geohashing the #geohashing IRC channel] on Foonetic.
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== How to play? ==
  
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<small>1. For time zone issues in Europe, Africa, Asia, and Australasia, see [[30W Time Zone Rule]] for an addendum to the algorithm rules.</small>
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# Get '''[https://geohashing.info/ today's coordinates]''' with a [[Geohashing:Coordinate_calculators|coordinate calculator]]
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<!-- LEAVE THIS FOOTNOTE HERE UNTIL AT LEAST 2008-06-02 -->
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# '''[[A beginner's guide|Go there]]''' (or as close as you safely and legally can)
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# '''[[Special:UserLogin|Create an account]]''' <small>(Returning after a break? All accounts created before 2020-02-02 [[Dark Ages|were deleted]]; you'll need to sign up again)</small>
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# '''[[Expedition|Write about]]''' your expedition!
  
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== How it works ==
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== How does Geohashing work? ==
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Everyday, an [[algorithm]] generates a random coordinate from stock market data. That coordinate can be applied to every 1°×1° latitude/longitude ''[[graticule]]'' in the world, giving a point that might be in a field, a forest, a city, or even [[Water Geohash|out at sea]]! Everyone in the world gets the same set of coordinates relative to their graticule.
  
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'''Play with the coordinate calculator at [http://xkcd.com/geohashing http://xkcd.com/geohashing].''' All coordinates refer to the [[wikipedia:WGS84|WGS84]] datum.
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Each day, people try to get their nearest generated coordinate, for an adventure, to discover somewhere new, or to meet up with other geohashers. Afterwards, you can '''[[expedition|document your expedition]]'''. The rest of us would love to read your story, see your photos, and cheer your success (or commiserate with your [[Achievements#Consolation_Prizes | failure]])! Join the other 'spot spotters', be out standing in your field and use this wiki to document the daily coordinates (geohashes) you’ve been to or tried to reach.
  
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Every day, the [[algorithm]] generates a new set of coordinates for each 1°×1° latitude/longitude zone (known as a [[graticule]]) in the world.  They are randomly placed -- they could be in the forest, in a city, on a mountain, or even in the middle of a lake!  You can use this wiki to document the daily coordinates (geohashes) you've been to.
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Each day there is also a single [[globalhash]] somewhere on Earth: rare, valued and much harder to reach.
  
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Unless you can accurately predict the [[DJIA|stock market]] down to the penny, you can't figure out what the coordinates will be ahead of time.  You can first calculate a weekday's coordinates at about 9:30am [[ET]], and on Friday you can calculate the coordinates for each day that weekend.
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{{Getting started}}
  
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When visiting geohash locations, please [[geotrashing|respect the area]] you are visiting.  Absolutely do not litter or otherwise disturb the natural integrity of the area.  However, if possible, creating some kind of a marker out of nearby materials (i.e. cairn of stones, blair-witch-style 'stick figures', etc.) is encouraged.
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{{New on the wiki}}
  
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{{disclaimer}}
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== Official xkcd meetups ==
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{{:Saturday meetup}}
  
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=== Official xkcd meetups ===
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== Gallery of recent expeditions ==
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Every expedition should have one photo in that day's gallery, selected manually. Please add yours with the "add" link. If that day's gallery hasn't been started yet, please start it.
  
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Official [[xkcd]] meetups happen every Saturday afternoon at that day's normal geohash coordinates.  All meetups start at 4:00pm (local destination time).  If you go at these times, you might encounter other readers of xkcd.  Bring games!
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* [[Template:Expedition Images2/How-to|How to add your own expedition photos.]]
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* [{{fullurl:{{FULLPAGENAME}}|action=purge}} Refresh the cache] (if your image doesn't show up)
  
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In such cases when it is unwise to attempt to access the generated coordinates, the [[Saturday meetup]] is postponed until a day when the algorithm provides a more suitable location.  Alternatively, when the coordinates fall within a body of water, you can rent a boat and win the [[Water Geohash]] achievement.
 
  
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== Active Graticules ==
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<!-- AUTOMATED BY User:relet.  Direct comments/questions/complaints about the automation process or the new gallery format to his user talk, or visit [[Template:Recent Images2]] -->
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Want to find geohashers in your local area?  See [[Active Graticules]] for a list of graticules with active users in them.
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{{Recent Images2}}
  
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An interactive map is available for [http://irc.peeron.com/xkcd/map/data/graticule.kml Google Earth] or on [http://maps.google.com/maps?f=q&hl=en&geocode=&q=http:%2F%2Firc.peeron.com%2Fxkcd%2Fmap%2Fdata%2Fgraticule.kml&ie=UTF8&ll=42.811522,-71.773682&spn=6.051885,9.733887&z=7 Google Maps].
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== Recent and Upcoming Coordinates ==
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<!--
  
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You can also attach your photos to this [http://maps.google.com/maps/ms?hl=en&ie=UTF8&oe=UTF8&msa=0&msid=102381707694098607871.00044e6104ed42cdc2ff4 Google Maps layer]
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THIS SECTION HAS BEEN COMPLETELY AUTOMATED BY User:Tjtrumpet2323. LEAVE MESSAGES ON HIS TALK PAGE WITH CONCERNS.
  
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== Implementations ==
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-->{{Next Saturday}}
  
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A full list of reference and practical implementations can be found on the [[Implementations]] page.
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* {{Coordinates list}}
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* {{Expedition archive recent}}
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== Recent and Upcoming Expeditions ==
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{{disclaimer}}
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{{Next Saturday}} <!--  THIS AUTOMATICALLY UPDATES ONCE THE DOW OPENS TO GIVE THE NEXT SATURDAY'S COORDS  -->
 
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{{30w}}  <!--  LEAVE {{30w}} UP THROUGH 2008-06-02 TO GIVE PEOPLE A WEEK TO NOTICE  -->
 
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{{expedition archive recent}}
 
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<!--   RECOMMENDED THAT EIGHT (8) DAYS BE KEPT HERE; WILL AUTOMATE SOON --Tjtrumpet2323 (5/26/08 16:17 UTC)  -->
 
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{{Expeditions|2008-06-02}}
 
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{{Expeditions|2008-06-01}}
 
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{{Expeditions|2008-05-31}}
 
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{{Expeditions|2008-05-30}}
 
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{{Expeditions|2008-05-29}}
 
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{{Expeditions|2008-05-28}}
 
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{{Expeditions|2008-05-27}}
 
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{{Expeditions|2008-05-26}}
 
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=== Older Events ===
 
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{{expedition archive recent}}
 
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== Known Issues ==
 
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Several known issues are presented at [[Known Issues]].  There is an ongoing discussion on these and other issues at [[Talk:Main Page]].
 
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== FAQ ==
 
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Q: Is there a facebook group for my area?
 
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A: Take a look at the [[Facebook groups]] page.
 
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Q: I tried to use the md5sum from my unix/linux command line and the hash was not the same as the comic. What is the correct command line?
 
  
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A: You probably forgot the "-n" (echo without a newline).  Try this to match the example:
 
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  echo -n 2005-05-26-10458.68 | md5sum
 
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The md5sum command may be called md5 instead.
 
  
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Q: What should I bring?
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== All recent expeditions ==
  
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A: See [[What to bring]].
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[[Geohashing:Current events|List of all recent expeditions, including those without photos.]]
  
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Q: What do I say to puzzled locals?
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==Recent non-expeditions==
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This section documents hash expeditions that geohashers ''wish'' they could make, but have not been able to for the reasons stated.
  
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A: See [[Cover Stories]].
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[[Recent_non-expeditions#2013|2013]] - [[Recent_non-expeditions#2014|2014]] - [[Recent_non-expeditions#2015|2015]] - [[Recent_non-expeditions#2017|2017]] - [[Recent_non-expeditions#2020|2020]]
  
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== Related Projects ==
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<!--- Please... Add other heroic non-expeditions anywhere that is appropriate.--->
  
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* [http://geocaching.com Geocaching: Global GPS cache hunt]
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<!--
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* [http://geodashing.gpsgames.org Geodashing: Monthly points, randomly created]
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###### !!! POSTED !!! NO TRESPASSING !!! ##################################
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* [http://www.confluence.org The Degree Confluence Project: visiting every integer latitude/longitude crossing point in the world]
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IF YOU ARE READING THIS (and were hoping to add your expedition picture to the gallery) YOU HAVE TAKEN A WRONG TURN. TRY CLICKING THE 'add' BUTTON NEXT TO THE DAY OF YOUR EXPEDITION IN THE GALLERY.
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* [http://geotude.com Geotude: Numbering the One Degree Graticules]
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Click on the link "Click here to learn how to add your own expedition pictures." above the gallery for more information.
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* [http://www.openstreetmap.org Open Street Map] - create a free map along the way
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###### !!! POSTED !!! NO TRESPASSING !!! ##################################
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//-->
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{{#css:
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  #firstHeading { display: none }
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}}

Revision as of 23:04, 15 February 2023

The Adventure Starts Here

Geohashing is a game of spontaneous adventure generation played around the world since 2008. You will explore random locations, meet fellow geohashers, brave the elements, unlock achievements, and then come back here to document your expedition.

Flag of Catalonia.png Català - Flag of Germany.png Deutsch - Flag of Spain.png Flag of Mexico.png Flag of Chile.png Español - Flag of France.png Français - Flag of Italy.png Italiano - Flag of Poland.png Polski - 800px-Flag of Sweden.png Svenska - other languages.

“
Try to contain your squeeks of excitement as the distance falls followed by the satisfied "Yes" if it drops below 310 metres.
 ”
find some more great geohashing quotations here.
—Sourcerer: Air geohash achievement at the hash
The Algorithm was invented for xkcd comic #426, published on 21 May 2008.

How to play?

  1. Get today's coordinates with a coordinate calculator
  2. Go there (or as close as you safely and legally can)
  3. Create an account (Returning after a break? All accounts created before 2020-02-02 were deleted; you'll need to sign up again)
  4. Write about your expedition!

How does Geohashing work?

Everyday, an algorithm generates a random coordinate from stock market data. That coordinate can be applied to every 1°×1° latitude/longitude graticule in the world, giving a point that might be in a field, a forest, a city, or even out at sea! Everyone in the world gets the same set of coordinates relative to their graticule.

Each day, people try to get their nearest generated coordinate, for an adventure, to discover somewhere new, or to meet up with other geohashers. Afterwards, you can document your expedition. The rest of us would love to read your story, see your photos, and cheer your success (or commiserate with your failure)! Join the other 'spot spotters', be out standing in your field and use this wiki to document the daily coordinates (geohashes) you’ve been to or tried to reach.

Each day there is also a single globalhash somewhere on Earth: rare, valued and much harder to reach.

Learn more

How to geohash:

Other people's expeditions:

Get involved


news archive • Edit What's new on the wiki?

More pages needing discussion • Discussion archive • Edit Now discussing - please join in: 


Official xkcd meetups

Felix Dance, Mdixon4, Rhonda, Lachie and Stevage meet up at the 28 December 2015 (a Monday) coordinates for Bairnsdale, VIC, Australia.

Based on the title text from the comic that established geohashing, the "official" meetup day was interpreted as being Saturday; that is, the day one would have the best chance of meeting others -- see also Mouseover Day. Additionally it was decided through convention that a good meeting time would be 16:00 local time (4:00 P.M.)¹

However, neither of these are hard rules, and they were formulated at a very different early stage in the sport's history. Nowadays and for quite awhile actually, any date or time can be good (or bad, depending on how many other hashers are near you) for meeting up, especially if prearranged. Note that this only applies to that day’s normal local geohash or globalhash coordinates, if you try to go to an alternate location without telling anyone else, it's highly unlikely you'd meet up with a hasher there (obviously).

¹Or earlier if that would be too close to sunset during the winter, or other quirks of temporal tradition; see your local graticule page for consensus there.

Gallery of recent expeditions

Every expedition should have one photo in that day's gallery, selected manually. Please add yours with the "add" link. If that day's gallery hasn't been started yet, please start it.


Recent Expeditions


Recent and Upcoming Coordinates

The coordinates for the Saturday meetups on 18 May 2024 are now available. The coordinates for the next Saturday meetups, scheduled for 25 May 2024, will be based on the Dow’s opening price published at 09:30 EDT (13:30 UTC) on Friday 24 May. See timeanddate.com to convert this time to your local time zone.‎

Disclaimer: When any coordinates generated by the Geohashing algorithm fall within a dangerous area, are inaccessible, or would require illegal trespass, DO NOT attempt to reach them. Please research each potential location before attempting to access it. You are expected to use proper judgment in all cases and are solely responsible for your own actions. See more guidelines.


All recent expeditions

List of all recent expeditions, including those without photos.

Recent non-expeditions

This section documents hash expeditions that geohashers wish they could make, but have not been able to for the reasons stated.

2013 - 2014 - 2015 - 2017 - 2020


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