Dentacoin Staking is based on Optimism network, a layer 2 solution for Ethereum blockchain. First, you will need to connect your wallet via MetaMask or WalletConnect. After choosing the connection method, go to your wallet app and confirm the action. The first time you use the platform, you also have to approve Dentacoin Staking contract to stake DCN token from your wallet. This requires a blockchain transaction, so you will pay a small gas fee in Optimistic Ethereum. After this one-time approval, you can choose the amount you would like to stake. Note that there is a pool fee in DCN when staking and unstaking tokens. There is no minimum amount or fixed period.
Yes, the pool joining fee is 2% of the staked amount in DCN and the withdrawing fee is 2% of the staked amount in DCN. Note that staking/ unstaking requires a transaction on the blockchain. DCN staking runs on Optimism network (Layer 2 solution for Ethereum) and thus you will need Optimistic ETH to cover the transaction fee.