  We show that de Rham--Witt forms are naturally isomorphic to $p$-typical
curves on $p$-adic Tate twists, which revisits a question of Artin--Mazur
pursued in the earlier work of Bloch and Kato. We show this by more generally
equipping a related result of Hesselholt on topological cyclic homology with
the motivic filtrations introduced by Bhatt--Morrow--Scholze.
