looking for a URL

Hi,

I'm looking for an online work i saw some years ago and can't find today. Here is a brief description of the work:

- 2 black and white images
- the first one is showing wastes (i think)
- the second one is an evolution of the first one : every time someone request the file, a black pixel is randomly added to the image, like in an erosion process. (Second image is the result of a CGI script )

If anyone has some information about this work and can post it to the list or reply to sender, it will be really fine…

thanks