My document would point you back. This ping pong was not too exciting aesthetically, but it worked, and we knew it is great. We have immediately invented some rules concerning file size, and have organized an IRC session during the opening of that St. Petersburg biennale where all invited artists kept in touch and added their little pages to the refresh ring. After about 6 hours of constant talk, we had a ring with about 25 pages that was working and was not looking bad at all. Two days later most of us met in Budapest for the MetaForum III conference, and the floppy with the log of the IRC session and the 'snapshot' of the whole ring was glued to the cover of the third Nettime book.
Nobody says that any more even if it's true.
You can not be sure that people in the future will make these copies from time to time. They would also have to build simulations of the equipment we use now to see these digital artworks. You started this job of conservation already now for Net-art. The element of disappearance that I am interested in is coming from the interface evolution, or upgrade. That is one good way to look at my Documenta thing.