Word of the Day | PoS - Proof-of-Stake

PoS

Word of the Day | Proof-of-Stake (PoS)

It is Like Earning Interest on Your Digital Savings. Imagine the same shared digital notebook (the blockchain). Instead of a puzzle, the system chooses someone to add the next "page" based on how much digital money they've locked up, and they get a reward similar to earning interest.

Here's how it works, focusing on the reward:

  1. Your Digital Savings (Staking): If you own some of the cryptocurrency that uses PoS, you can choose to "stake" it. Think of this as putting your digital money into a special savings account within the network. You can't easily spend it while it's staked.

  2. Becoming Eligible (Like Lottery Tickets): The more cryptocurrency you stake, the more "eligible" you become to be chosen to add the next "page" of transactions. It's like having more tickets in a lottery, but instead of luck, your chances are tied to how much you've saved. These eligible participants are called "validators."

  3. Getting Chosen to Add a Page: The network's software randomly selects one of the eligible validators to propose the next "page" (block) of verified transactions. Those with more staked cryptocurrency generally have a higher chance of being selected.

  4. Doing the Work (Verification): The chosen validator checks if all the transactions on the "page" are legitimate. They make sure no one is trying to cheat.

  5. Getting Rewarded (Like Earning Interest): For their work in proposing and verifying the new "page," the chosen validator receives a reward. This reward usually comes in two forms:

    • Transaction Fees: They get a portion of the fees that were paid by the people who made the transactions on that "page."

    • Newly Minted Coins (Sometimes): In some PoS systems, new coins are created and given as part of the reward, similar to interest earned on a savings account.

  6. Keeping the Network Secure (The Incentive): Everyone who stakes their cryptocurrency has an incentive to make sure the network stays honest. If they try to validate fake transactions or act maliciously, the network can penalize them by taking away some or all of their staked cryptocurrency – like losing your savings! This threat of losing their stake encourages good behavior.

PoS is like earning interest on your digital savings. By locking up your cryptocurrency ("staking"), you become eligible to be chosen to validate new transactions and add them to the blockchain. When you're chosen and do this work honestly, you get rewarded with fees and sometimes new coins, just like earning interest on the money you've saved. The more you save (stake), the more chances you have to earn rewards. This system encourages people to hold and secure the network because they can earn more cryptocurrency by participating.

Learn more with the DBM Academy FREE course https://www.dbm.academy/courses/80413-an-introduction-to-your-blockchain or visit https://www.dbm.academy/faq for more blockchain vocabulary.