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.
Bitcoin Atom (BCA) brings a truly decentralized way of digital asset exchange – with on-chain atomic swaps on board. By using built-in hash time-locked contracts (HTLCs) and its own HTLC API, Bitcoin Atom attempts to disrupt the way we exchange cryptocurrencies today, giving independence from intermediaries and any centralized entities.