Witnesses in steem (and in BitShares, too) do what Bitcoin miners do, only without wasting lots of energy: they collect users' transactions and bundle them into blocks, thereby creating the steem blockchain.
Witnesses in steem (and in BitShares, too) do what Bitcoin miners do, only without wasting lots of energy: they collect users' transactions and bundle them into blocks, thereby creating the steem blockchain.
RE: What are steem witnesses for??