Which crypto uses DAG?

Could you please elaborate on the question you're asking? DAG, or Directed Acyclic Graph, is a data structure used in various technologies, including some cryptocurrencies. However, there isn't a specific cryptocurrency that exclusively uses DAG. Multiple cryptocurrencies utilize DAG technology in their architecture or consensus mechanisms. Some examples of cryptocurrencies that incorporate DAG in their designs include IOTA, Nano, and a few others. Could you clarify if you're asking about a specific cryptocurrency or just generally curious about which ones utilize DAG?