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You like Wikipedia?

We love it!

So that's why we created Semapedia, a way to link physical objects with virtual (online) Wikipedia Articles.

You find us next to the Wikipedia banner at the stairs on the first floor. We are there to show how everyone can create so called Sematags, a 2D-Datamatrix and use it to link Objects (for example this building) to the Wikipedia.

Feel free to go and check out our web-application: at

Christian Fr├╝hwirth and Alexis Rondeau using Sematags


  • Of course, please contribute to the 22C3 Wikipedia Article: here

Semapedia is a creation of Alexis Rondeau and Stan Wiechers

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