Review on Qtum by Sarah Bellingham

Name: Qtum
Item: Qtum
Rating: 5

September 15, 2018

Qtum is a mix of Bitcoin and Ethereum based on proof of stake consensus. The…

Qtum is a mix of Bitcoin and Ethereum based on proof of stake  consensus. The Qtum developer signed the Ethereum Smart Agreement and applied it to Bitcoin's Unspent Transaction Output model (as opposed to the Ethereum Account model). Qtum is very similar to Ethereum: With the Ethereum Virtual Machine, the smart contract is compatible with the Ethereum block chain and is equivalent to gas, but the transaction is written differently than the block chain.
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Pros

It's Blockchain is based on the unused transaction output model (as in Bitcoin). However, smart contracts are being searched at such addresses as Ethereum. And the gas model is very similar to the ethereum. It looks like you are building an account abstraction layer in Bitcoin Blockchain. Thus, you can handle smart contracts such as Ethereum, and this layer writes transactions to non-Ethereum block chains

Cons

Qtum founder Patrick Dai previously participated in the BitBay project(scam project) with another name, Steven Dai. In February 2017, Patrick Dai accepted this fact in the BitcoinTalk forum and later tried to explain the situation. . So this person changed his name so as not to be associated with Bitbay Bitbay founder David has accusined Patrick Dai in stealing 200BTC from BitBay project