What Is Staking?

One of the key benefits of blockchain technology is that it can offer banking services without banks.

Instead of banking clerks, there are smart contracts. Instead of offices and guards, there is a decentralized network secured by its consensus mechanism. This is the foundation for Finance 2.0, or Decentralized Finance (DeFi).

One of the most sought-after DeFi features is staking. Just as banks pay interest on deposits, smart contracts pay income to tokenholders who stake their assets.

Making Your Crypto Money Work for You

Since time immemorial, borrowing and lending has been the lifeblood of any economy. Borrowers need money to grow their businesses, or they may need cash to get out of temporary financial trouble.

In turn, lenders supply funds to meet borrowing demand. To make it worth their while and cover the risk if they don’t get paid back, they charge an interest rate, so that borrowers have to return more than they borrowed. Otherwise, why would lenders bother?

This process is now completely automated. Thanks to blockchain’s distributed and immutable database feeding smart contracts, the demand for borrowing is easier to meet than ever. In the crypto world, it is interchangeably used with different terms.

How Does Staking Work?

Staking is locking up digital assets into a smart contract platform such as Ethereum, Cardano, or Solana. These are all proof-of-stake blockchain networks. Meaning, instead of using specialized ASIC machines to run cryptographic hash functions, as is the case in Bitcoin’s proof-of-work blockchain, they use a different method to secure and verify transactions.

As their name suggests proof-of-stake blockchains use economic validators instead of miners. In this consensus mechanism, validators use their locked crypto funds as a replacement for energy-hungry ASIC miners. This is their stake in the network.

<em>The key difference between proof-of-work and proof-of-stake is their foundation, physical-electricity vs. economic-crypto funds. </em>Source: Etherplan.com
The key difference between proof-of-work and proof-of-stake is their foundation, physical-electricity vs. economic-crypto funds. Source: Etherplan.com

Some view the PoS consensus as a weakness because one would have to own 51% of the network to compromise it. In contrast, a PoW would need to be overcome with brute CPU power, which is at this point virtually impossible.

Whichever system proves itself in the future, validators receive small rewards when people use the network, just as Bitcoin miners do. In fact, when all 21 million bitcoins are mined, miners will also start receiving transaction fees instead of block rewards.

By the same staked token, if validators misbehave, they get slashed. This means their locked crypto funds are reduced.

In the case of the largest smart contract platform, Ethereum, which is soon to transition into a fully PoS blockchain, slashing is done for two reasons — attestation and proposal offenses.