Private blockchain
blockchain is a digital account book that can be jointly bookkept, and will record all transactions that have occurred and have been unanimously recognized by the system it's the same as the whole family. You're bookkeeping, and your father and mother are also bookkeeping. They can see the general ledger, but the saved information can't be tampered with any more
In 2008, Nakamoto first proposed the concept of blockchain subsequently, blockchain has become the core component of electronic currency bitcoin, which serves as the public account book for all transactions. By using peer-to-peer network and distributed timestamp server, the blockchain database can be managed independentlyextended data:
type of blockchain
1, public blockchain
any indivial or group in the world can send transactions, and transactions can be effectively confirmed by the blockchain, and anyone can participate in its consensus process. Public blockchain is the earliest and the most widely used blockchain. The virtual digital currencies of bitcoin series are all based on public blockchain. There is only one blockchain corresponding to this currency in the world
2, Alliance (instry) blockchain
instry blockchain: multiple preselected nodes are designated as bookkeepers within a group, and the generation of each block is jointly determined by all preselected nodes (preselected nodes participate in the consensus process), and other access nodes can participate in the transaction, However, regardless of the bookkeeping process (in essence, it is still managed bookkeeping, only distributed bookkeeping, how many preselected nodes, and how to determine the bookkeeper of each block to become the main risk point of the blockchain), anyone else can conct limited query through the open API of the blockchain
3, private blockchain
only uses the general ledger technology of blockchain for bookkeeping. It can be a company or an indivial, and enjoys the write permission of the blockchain. This blockchain is not very different from other distributed storage schemes
Since 2018, the blockchain instry has been booming. The exploration and application of blockchain is not limited to the underlying platform. Internet giants and financial giants have strengthened the application of blockchain in finance, public welfare, commodity traceability and other fields, especially in the financial field. The application with blockchain technology as the core has been accelerated
the blockchain instry is in the stage of rapid development. According to the data of in-depth analysis report on business model innovation and investment opportunities of blockchain instry published by foresight Instry Research Institute, , by the end of March 2018, 456 blockchain companies mainly engaged in blockchain business in China, from upstream hardware manufacturing, platform services, security services to downstream instrial technology application services, To ensure the development of the instry investment and financing, media, talent services, companies in various fields have been basically complete
analysis on the trend of the number of newly established companies and financing events in China's blockchain instry from 2013 to 2018, The application scenarios of blockchain have been graally enriched. According to the distribution of instry segments, there are 7 instry application companies, mainly Internet companies (Alibaba, Jingdong, Tencent) used in public welfare and commodity traceability, and innovative financial technology applications evolved by financial enterprises (Ping An, CMB, BOC), such as supply chain finance, bills and transaction clearing
because the blockchain can realize the non tampering of information, the possibility of data falsification is eliminated from the root, especially the financial instry, which has high requirements for real data, will embrace the blockchain more actively
analysis on the development trend of blockchain
Secondly, blockchain has become a new hot spot for innovation and entrepreneurship, and technology integration will expand new application space Thirdly, blockchain will be widely implemented in the real economy in the next three years, and become an important support for the construction of Digital China Fourthly, blockchain creates a new platform economy and opens a new era of sharing economy Fifthly, blockchain accelerates the process of "credible digitization" and drives finance to "move from virtual to real" to serve the real economy Sixth, the blockchain supervision and standard system will be further improved, and the instrial development foundation will continue to be consolidatedin addition, as an emerging technology, there are still many technical difficulties in the application of blockchain in the actual proction environment of the financial instry, such as throughput, scalability, consensus mechanism, privacy and security, manageability, etc
technological innovation such as blockchain is of great significance to the financial instry, which is expected to accelerate the process of "credible digitization" and continue to drive the financial "from virtual to real"
community blockchain; It is also called alliance chain, which means that the nodes participating in the blockchain are selected in advance, and there are usually good network connections and other cooperative relationships between the nodes; Community blockchain is a practical application scenario of the combination of blockchain and physical goods, such as Domenech jewelry's Maobei mode
Hello, the differences between the two are as above, for reference only, hope to adopt
that every node has all bitcoin's complete blockchain data--- yes