Of blockchain Download
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 generated by using cryptographic methods. Each data block contains a batch of information about bitcoin network transactions, Used to verify the validity of its information (anti-counterfeiting) and generate the next block. In fact, the original English version of bitcoin white paper [1] does not use the word blockchain, but uses the word chain of blocks. In the earliest Chinese translation of bitcoin white paper [2], chain of blocks was translated into blockchain. This is the earliest time when the Chinese word "blockchain" appeared.
block chain
On March 19, trump signed an executive order to prohibit U.S. citizens and entities or indivials and entities in the United States from participating in digital currency transactions concted by the Venezuelan government or its agents. The executive order came into effect at noon on March 19
since the second half of 2017, the United States has repeatedly imposed sanctions on Venezuela e to the holding of the constituent assembly election and other reasons, expanded personal economic sanctions on current and former senior officials of Venezuela, and prohibited U.S. financial institutions from participating in New debt and equity transactions between the Venezuelan government and state-owned Venezuelan oil companies, American institutions are prohibited from participating in the trading of some bonds issued by Venezuelan public sector