Some time ago I was asked to tell more about a book we were working on got published. In this book ARK has a prominent role on almost every page of the book!
The book is inspired by classic photos from 100 years ago, featuring residents posing in
front of their homes. Many such photos also appear in the "first version" of the 1989
book. That book, compiled to commemorate the 60th anniversary of the Plaatselijk
Belang (Local Interest Group), focused on old photos and their accompanying stories.
This book is compiled in the year that it was 500 years ago that the Dutch village Katlijk built its church and so becoming a “church village”. It includes nearly all the houses, often with their current residents in front.
Unique code
The result is a unique book that not only provides a wonderful snapshot of the Frisian village Katlijk and its residents in 2025, but also a unique way to find additional information. Each address contains a QR code that can be scanned with your phone. This takes you to the correct address in the online village archive! In almost all cases, more historical information can be found there, including some of the more than 10,000 photos. The village archive is also busy tracking down the home addresses through the centuries of the now more than 10,000 people with a Katlijk link in the archive! This makes this book a unique way to easily find and browse through the (historical) acquisitions of the village archive!
The technology behind the code
The ARK alliance created a unique structure to provide a Persistant IDentifier (or in short ‘PID’). It has been in operation since 2001 and has proven to be durable. It is now used by over 1,600 organisations including renowned institutions such as the Louvre (France), Massachusetts Institute of Technology (MIT, USA), Smithsonian Institution (USA) and the Dutch Natutralis. ARK is the preferred PID in the archival software of GeoArchive which is used by the village archive
of Katlijk. The ARK code also has a persistent URL, which in turn can be turned into a QR-code.
This is a perfect structure to have a durable QR code that is expected to work for as long
as the books exist!
*) ‘Ketlik’ is ‘Katlijk’ in the Frisian language, a Dutch village in the northern province of
Fryslân (Friesland).