What are the blockchains issued by Yu Lingxiong
(1) distributed ledger, that is, transaction bookkeeping is completed by multiple nodes distributed in different places, and each node records complete accounts, so they can participate in monitoring the legitimacy of transactions, At the same time, they can testify together
different from traditional distributed storage, the uniqueness of distributed storage of blockchain is mainly reflected in two aspects: one is that each node of blockchain stores complete data according to block chain structure, while traditional distributed storage generally stores data in multiple copies according to certain rules. Second, the storage of each node in the blockchain is independent and has the same status, which relies on the consensus mechanism to ensure the consistency of storage, while the traditional distributed storage generally synchronizes data from the central node to other backup nodes[ 8]
no single node can record the account data separately, so as to avoid the possibility that a single bookkeeper is controlled or bribed to record false accounts. In theory, unless all the nodes are destroyed, the accounts will not be lost, so as to ensure the security of the account data
(2) asymmetric encryption and authorization technology, the transaction information stored on the blockchain is public, but the account identity information is highly encrypted, which can only be accessed under the authorization of the data owner, thus ensuring the data security and personal privacy
(3) consensus mechanism is how to reach a consensus among all accounting nodes to determine the validity of a record, which is not only a means of identification, but also a means of preventing tampering. Blockchain proposes four different consensus mechanisms, which are suitable for different application scenarios and achieve a balance between efficiency and security
the consensus mechanism of blockchain has the characteristics of "the minority is subordinate to the majority" and "everyone is equal", in which "the minority is subordinate to the majority" does not completely refer to the number of nodes, but also can be the computing power, the number of shares or other characteristics that can be compared by computers“ "Everyone is equal" means that when the nodes meet the conditions, all nodes have the right to put forward the consensus results first, and then directly recognized by other nodes, and finally may become the final consensus results. Taking bitcoin as an example, the workload proof is adopted. Only when more than 51% of the accounting nodes in the whole network are controlled can a nonexistent record be forged. When there are enough nodes in the blockchain, this is basically impossible, thus eliminating the possibility of fraud.
(4) smart contract, which is based on these trusted and tamperable data, can automatically execute some pre-defined rules and terms. Take insurance as an example. If everyone's information (including medical information and risk occurrence information) is true and reliable, it is easy to carry out automatic claim settlement in some standardized insurance procts
you can think that the action of digging virtual currency is to use the graphics card to do continuous general computing, and the computational complexity is relatively low and quite repetitive. The stream processor used by the graphics card is just suitable for such an algorithm
therefore, we used graphics cards to mine virtual currency at the beginning. After that, someone developed a specific algorithm to make the stream processor of the graphics card greatly strengthen the virtual currency solution, which is the origin of the mining machine.
Yes, the more graphics cards, the greater the computing power, and the mining speed will be much faster, so the more graphics cards, the faster the cost will be
Yu Lingxiong had just entered the society. In order to survive, he worked as a security guard, warehouse keeper, cook and waiter
by chance, he was instructed by a boss that he had better be a salesman if he wanted to be a big boss. He made an appointment to resign with five colleagues that night, but he resigned the next day. In the early stage of his career development, Yu Lingxiong learned from the master with an open mind and engaged in business work. He won the first place in the company in the first month; At the same time, through the introction of customers, they began to contact the ecation and training instry, and since then they have become learning professionals. So far, they have invested more than 8 million in learning expenses
at the end of 2007, Yu Lingxiong founded Shanghai convergence investment to build the Chinese entrepreneur ecation ecosystem, and developed the company into the fastest growing leading enterprise in the instry within three years. In 2010, convergence had 3800 employees and more than 30 direct companies, becoming the fastest growing leading enterprise in the instry. In 2011, the advantages of the constructed entrepreneur ecation ecosystem are obvious, and the position of the leading enterprise in the instry is further consolidated. In 2012, he led the company into diversification, started to enter the fields of finance, Internet, etc., laid out the entrepreneur ecosystem, Internet Ecosystem and public welfare ecosystem, and won the "top ten charm Zhejiang Merchants" award< br />