# What Is Solana?

**Published by:** [Cryptocurrency & Blockchain](https://paragraph.com/@cryptocurrency-blockchain/)
**Published on:** 2023-12-11
**URL:** https://paragraph.com/@cryptocurrency-blockchain/what-is-solana

## Content

Solana is a blockchain with striking resemblances to Ethereum—in fact, it’s frequently referred to as an “Ethereum killer.” Like Ethereum, the SOL token can be bought on most major exchanges. The token’s actual value is in conducting transactions on the Solana network, which has rare advantages. The Solana blockchain uses a proof-of-history consensus mechanism. This algorithm uses timestamps to define the next block in Solana’s chain. Most early cryptocurrencies, such as Bitcoin and Litecoin, use a proof-of-work algorithm to define the blocks in their chains. Proof of work uses a consensus mechanism that relies upon miners to determine what the next block will be. However, this proof-of-work system is slow and resource-heavy, leading to the use of tremendous amounts of energy. This is one reason why Ethereum converted to a proof-of-stake system, reducing energy consumption by 99.9%. Unlike the earlier proof-of-work mechanism, proof of stake uses staking to define the next block. Staked tokens are held as collateral by the blockchain until validators reach a consensus about the chain’s next block. Solana’s Delegated Proof of Stake According to Konstantin Anissimov, chief operating officer at crypto exchange CEX.IO, Solana uses “a mixture of time-tested cryptographic strategies and fresh innovations to address the shortcomings of crypto’s first-wave solutions.” Powered by its unique combination of proof of history and what’s referred to as delegated proof-of-stake algorithms, the main problem Solana was attempting to solve was Ethereum’s scalability issues. Delegated proof-of-stake is a variation of the more traditional proof-of-stake algorithm. For those who need a refresher, the proof-of-stake mechanism is a process of transactions for creating new blocks in a blockchain using a system of validators. Solana brings users several advantages with its delegated proof-of-stake mechanism. The history algorithm adds a layer of security to the network, says Christian Hazim, analyst at ETF provider Global X. In essence, Solana addresses two out of three issues identified by Ethereum co-founder Vitalik Buterin in his blockchain trilemma of scalability, security and decentralization. Even though Buterin initially claimed Ethereum would address all three aspects of this trilemma, most experts believe that it only addresses two factors: decentralization and security. However, Solana is designed to address two parts of the trilemma: scalability and security. SOL’s proof of history algorithm presents unique security for the network. While the speed with which the Solana platform performs computations allows for increased scalability. What Makes Solana Unique? By using a unique blend of proof of history and delegated proof of stake, Solana offers exponentially faster transaction speeds than its closest competitors, Ethereum and Cardano (ADA), at a fraction of the cost, Anissimov says by using a unique blend of proof of history and delegated proof of stake. Unlike proof of work, which utilizes the miners themselves to define the next block in a chain, or proof of stake, which uses staked tokens to define the next block, proof of history uses timestamps in its definition of blocks for the Solana chain. This innovative system lets validators on the blockchain vote on the timestamps of different blocks in the chain. This continues to keep the chain relatively decentralized while simultaneously allowing for more secure and faster computations.

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