The Best Proof of Stake Coins for Earning Passive Income » Purdy's Two Cents
Proof of stake basically rewards coin holders for performing essential actions on the blockchain, in exchange for tying up substantial amounts of those coins. This contributes to blockchain security, by keeping ownership relatively decentralized among a number of stakers. It also incentives smaller holders to hang on to their coins, rather than gamble them away in the open market.
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