The Semantic Web

As linked data gets more common and the Semantic Web becomes reality, information retrieval will become much simpler. There has been a lot of talk about the Semantic web and for a long time. But the way the Semantic Web taps into and interconnects data has not possible without these new technologies. Europeana has made […]

Photo of a ring-tailed lemur

What is Attribution and how do you do it?

Attribution is when you name the authour/creator of a work. To be named as the creator is one of the rights imparted by copyright. When using a Creative Commons licence you are always required to attribute. The way you do this is that you in a visible place, close to the licensed work, put the […]

Part of the Linking Open (LOD) Data Project Cloud Diagram

Linked Data

The term Linked Data refers to a set of best practices for publishing and connecting structured data on the Web. Source: Bizer at al Linked Data – The Story So Far (pdf from 2009) “Linked Data – Connect Distributed Data across the Web” is a website used to house, or link to, linked data. “Technically, […]


Pasting image metadata into Inkscape

In the previous post I showed a patch to GNOME Image Viewer (eog) to put metadata onto the clipboard when copying an image. This post shows the corresponding patch to Inkscape to pick up this metadata and include it when pasting an image. But first, a video showing this in action! Christoffer is working on […]

Cat Collage by wrestlingentropy.

How are Attribution and Provenance interconneted?

Attribution in copyright is the right to be named as the creator of a work. Be it an author, a photographer or a musician, most of them will want to have their name linked to their work. Provenance is, very concisely, the cultural context of a work. When the work is a mash-up or a […]


Inkscape – A new GUI to manage metadata

In my last post I talked about the SVG file format and how metadata is stored in it. I also showed an addition to Inkscape where metadata “follows” the objects it belongs to so it is easier to keep track of attribution and license information when copying from different documents. With a solution for the back […]

Chart showing number of Creative Commons licensed photos on Flickr by type of licence.

Creative Commons on Flickr

Flickr is a popular photo-sharing platform. It is also an active community centred around photography and a platform that makes it easy to share your photos with others. The choice to use one of the Creative Commons licences is built into their web interface. This means that a lot of Flickr-users have decided to give […]


Developer’s corner: copying images with GTK

In a previous post I looked at the data that is put on the clipboard when an image is copied in some Linux applications. No metadata was included by any of the tested applications. The GTK-based applications Firefox, eog (GNOME image viewer) and GIMP all produced the exact same bytes, so this post digs into […]


Developer’s corner: A distributed metadata registry

The concept of a registry for creative works is not new: your national library likely has a registry of books, indexed by their ISBN number, the U.S. Copyright office has a (voluntary) copyright registry, the ISWC maintains a registry for musical works and the DOI is a federated registry for digital identifiers. These are far from […]


Copy-paste metadata test

This test is inspired by the Embedded Metadata Manifesto (EMM) tests of what happens to metadata in images uploaded to different social media sites and other web services. The EMM test includes saving an image from a web page to investigate what metadata it retains. This test looks at what happens when you instead copy […]