Blockchain net type database comprising smart contract and work method

Abstract

The invention provides a blockchain net type database comprising a smart contract. The blockchain net type database comprises a smart contract module, a data packaging module, a block head calculating module and an in-database executing module, wherein the smart contract module is connected with the data packaging module, and the data packaging module is connected with the block head calculating module and the in-database executing module; the smart contract module is a user-defined mode and used for verifying and processing data according to user-defined constraint; the data package module organizes data in a tree chain mode; the in-database executing module adopts a PBFT algorithm to ensure consistency between a main node and backup modes. The invention further provides a working method of the blockchain net type database comprising the smart contract. The general core library of the blockchain system is provided, and the development speed of blockchain application can be accelerated; multi-chain interaction can be achieved, the condition that part of nodes cannot take part in a network as a single chain mode account book is too large can be avoided, and data authenticity can be ensured through service logic dependent relation between chains.

Description

technical field [0001] The invention relates to the technical field of databases, in particular to a block chain network database including smart contracts and a working method. Background technique [0002] Since Satoshi Nakamoto invented Bitcoin (Bitcoin), a peer-to-peer electronic cash system in 2008, Blockchain (BlockChain) technology has gradually entered people's field of vision. In addition to the Bitcoin system, Ethereum and Factom are the three most widely known systems that use blockchain technology. However, these three systems have their own advantages and disadvantages: both Bitcoin and Ethereum are single-chain systems; although the notary chain has a multi-chain prototype, it only has an inclusion relationship—the secondary data (sub-chain) is included in the primary data (main chain); among the three, only Ethereum uses smart contracts, which can automatically execute complex logic. The disadvantage of the single-chain system is that all data is stored in o...

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Problems solved by technology

[0004] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is to provide a block chain network database containing smart contracts, which provides a general core library of block chain systems, It can speed up the development of blockchain applications; it can realize multi-chain interaction, which can not only avoid the situation that some nodes cannot participate in the network due to the large ledger of single-chain mode, but also ensure the authenticity of data through the business logic dependencies between chains

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