1. A method, comprising: obtaining at least one image of a dendritic tag attached to an article, wherein the dendritic tag comprises a dendritic structure comprising a plurality of members extending away from a common point of the dendritic structure to form a stochastically branched arrangement of the members; analyzing the at least one image to identify a set of features associated with the dendritic tag; and comparing the set of features to stored information to identify the article.