Steem Dollars are liquid stable-value currency tokens designed to be pegged to $1 USD. Steem Dollars can be traded with STEEM and transferred to other accounts for commerce or exchange.
The CryptoWorld.Vip (CWV) public chain is the world's first integrated main chain based on the multi-chain mechanism. It is a blockchain 3.0 product. The CryptoWorld game is a blockchain world created on the CWV chain based on a 1:1 mapping to the real world. Buildings in the CryptoWorld [game] access different chains and blockchain services based on their functions.