QTUM-QtumDetailed Description

QTUM-Qtum Detailed Description

Qtum Blockchain (referred to as "Quantum Chain" or "Qtum") is committed to developing a third blockchain ecosystem other than Bitcoin and Ethereum, through the value transfer protocol ("Value Transfer Protocol") to achieve peer-to-peer According to this agreement, build a decentralized application development platform ("DApp Platform") that supports multiple industries (including finance, Internet of Things, supply chain, social networking, games, etc.). By merging an improved version of the Bitcoin core infrastructure and a compatible version of the Ethereum virtual machine, Quantum Chain has both Bitcoin's indestructible blockchain network and the infinite possibilities of smart contracts. QTUM coins are used to access Dapps, token voting, community autonomy, and application function consumption/payment.

1. AAL account abstraction layer

Account Abstraction Layer (AAL) is the key to Qtum's connection between the UTXO circulation layer and the smart contract platform layer, and it is also a major innovation implemented by Qtum. Through AAL, the UTXO model can be converted into an account model that can be executed by different virtual machines, such as Ethereum EVM, or an x86 virtual machine, and the account balance of the virtual machine can be converted into UTXO through AAL.
This realizes the layered design of balance and smart contract platform. The liquidity adopts UTXO of Bitcoin, and natively supports multi-signature algorithm, which is more secure for bookkeeping and transfer of balance; and because the smart contract platform is a graph With a complete spirit, it is difficult to avoid programming bugs. It is more advantageous to separate the circulation layer from the smart contract platform than Ethereum. In order to further expand the smart contract platform capabilities of the blockchain, the x86 high-performance virtual machine that Qtum plans to implement can directly program smart contracts through C, C++, rust, go and other languages, and can also support other The programming language that runs on it. The x86 architecture virtual machine can solve some problems in the Ethereum EVM, such as not supporting the standard library, the generated bytecode is too large, not supporting floating point, and difficult to debug.

2. DGP Governance

The full name of DGP is Decentralized Governance Protocol. The key is to take advantage of the certainty of results and the openness of rules of smart contracts to solidify the governance framework and rules into the contract, so that when necessary, decisions can be made in a democratic way and the state management of the blockchain can be completed automatically.

3. Qtum x86 virtual machine

Intel's x86 CPU architecture is the primary CPU platform for server and desktop computers. The Qtum team is developing virtual machines using x86 machine language. A "virtual machine" is an independent software execution environment that can run on many different hardware platforms (Mac, PC, server, virtual private server in the cloud, etc.). Currently Qtum uses the EVM virtual machine and solidity.
Ethereum's Solidity language is the first smart contract development language. As a new language, Solidity has some problems. Through the x86 virtual machine platform, developers can use familiar and mainstream languages (such as C language, C++ language, Rust and Python) and tools to develop smart contracts.

Fourth, project features

The main features of Qtum are as follows:
1. From a technical point of view, Qtum is committed to realizing the first POS smart contract platform compatible with BIP (based on UTXO model), compatible with Bitcoin transaction mode and the advantages of Ethereum virtual machine ;
2. Quantum chain introduces off-chain factors through "decentralized applications" and "master control contracts", forming blockchain master control contracts that conform to the business logic of the real world, supporting multiple industries and channels, and finally Realize the strategy of moving towards the mobile terminal;
3. Strengthen the flexibility of the consensus mechanism in the public chain and the alliance chain, while considering industry compliance.