Kusama is the first blockchain in the Polkadot network, a kind of "testing ground". Kusama received some functions even earlier than Polkadot (participation in the auction of slots, composite applications), and also this blockchain has a higher speed of operation. It is an environment for developers where they can test and debug projects before implementing them in Polkadot. However, some projects prefer to stay on Kusama, considering this blockchain quite suitable for themselves. KSM is a na...