Steem witnesses are individuals who are responsible for creating and adding blocks to the Steem blockchain. They are chosen by the Steem community through voting and act as the governing body for the blockchain. Witnesses have several important roles, including creating and storing blocks, producing a price feed that maintains the value of STEEM Dollars, and ensuring the smooth operation of the blockchain by producing blocks on a regular schedule. Witnesses are rewarded based on their rank and the number of blocks they produce, with the top 19 witnesses receiving the most rewards. It is important for Steem users to support and vote for witnesses in order to ensure the stability and growth of the Steem blockchain.

Best of luck in the contest