What are the Ardor Child Chains, and how are they different from the so called Side Chains proposed by other blockchain platforms? This comparison table presents the key differences.

Forgers in Ardor are the accounts that create new blocks, already familiar from the Nxt blockchain. Their role is similar to that of the miners in bitcoin. But what are Bundlers? This is a role unique to Ardor, no other blockchain platform has such concept as far as we know. Here is what each of them does: