Kusama, Polkadot's canary network, provides an environment for blockchain innovation. It permits swift experimentation with a reasonable degree of risk and enables developers to validate and test new technologies. Its multi-chain framework allows different chains to run in parallel, each maintaining its unique status, transaction history, and ability to interact with other chains. The native token of Kusama is KSM.
Kusama uses a Nominated Proof-of-Stake(NPoS) consensus mechanism, constructed from PoS, where "Nominated" refers to the nominators who hold and stake a certain amount of KSM tokens. In Kusama network, the KSM balance is utilized to cover fees and participate in governance voting. If an account's balance is insufficient, it may be prone to attacks and unable to cover transaction fees or participate in governance voting.
● Each account must hold a minimum balance of 0.0000333333 KSM
To prevent attacks by malicious activities, and ensure network security and integrity, Kusama requires all accounts to maintain a minimum balance of 0.0000333333 KSM. If the account balance falls below the minimum, account reaping will occur. That is, this account will be deactivated along with a nonce reset (Note: The nonce helps prevent double-spending and guarantee proper transaction order). If a Kusama account is reaped, the holder should contact the Kusama team to reactivate it.