es mi sugerencia:

artifactual es un adjetivo, pero al menos yo no conozco una sola palabra para traducirlo.

of or relating to artifacts
wordnet.princeton.edu/perl/webwn

1. any object made by human beings, esp. with a view to subsequent use.
2. a handmade object, as a tool, or the remains of one, as a shard of pottery, characteristic of an earlier time or cultural stage, esp. such an object found at an archaeological excavation.
www.dictionary.com