In the blockchain industry, investing in a currency is like investing in a stock. Understanding the background of the founder is a key factor. The founder of ada is an American named Charles Hoskinson.
Blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies.
Blockchain is an important concept of Bitcoin. It is essentially a decentralized database. At the same time, as the underlying technology of Bitcoin, it is a series of data blocks related by cryptography. Each data block contains a batch of information about bitcoin online transactions, which is used to verify the validity of the information (anti-counterfeiting) and generate the next block.
In fact, the original English version of the Bitcoin white paper does not have the word blockchain, but uses blockchain. In the earliest Chinese translation of Bitcoin white paper, blockchain was translated into blockchain. This is the earliest time when the Chinese word "blockchain" appeared.
In a narrow sense, blockchain is a chained data structure that combines data blocks in chronological order, which is cryptographically guaranteed to be an unbreakable and unforgeable distributed account book.
Broadly speaking, blockchain technology is a brand-new distributed infrastructure and computing method. It uses blockchain data structure to verify and store data, uses distributed node consistency algorithm to generate and update data, uses cryptography to ensure the security of data transmission and access, and uses intelligent contracts composed of automated script codes to program and manipulate data.
Generally speaking, the blockchain system consists of data layer, network layer, consensus layer, incentive layer, contract layer and application layer.
The data layer encapsulates the underlying data blocks and related technologies, such as data encryption and timestamp. The network layer includes distributed networking mechanism, data distribution mechanism and data verification mechanism. The consensus layer mainly encapsulates various consensus algorithms of network nodes; The incentive layer integrates economic factors into the blockchain technology system, mainly including the distribution mechanism and distribution mechanism of economic incentives; The contract layer mainly encapsulates various scripts, algorithms and intelligent contracts, which is the basis of the programmable characteristics of blockchain; The application layer encapsulates various application scenarios and cases of blockchain.
In this model, the blockchain structure based on timestamp, consensus mechanism of distributed nodes, economic incentives based on consensus computing power and flexible and programmable smart contracts are the most representative innovations of blockchain technology.