دانلود کتاب اصول و کاربردهای سیستم های بلاک چین

Undoubtedly, as an attempt to improve the shortcomings of the current global mainstream financial and monetary system, the birth of the decentralized peer-to-peer electronic money system – Bitcoin system in early 2009, and the birth of its core technology blockchain will be the most influential, long-term, far-reaching, and most disruptive technology in human history. Here are some examples: Blockchain technology has the characteristics of decentralization, immutable, high security, and high trust due to its data distribution. Its function of executing trading orders or agreements according to the software of smart contracts is the first time in human history that make trust relationship being evolved from blood trust, clan trust, party institutional trust, and intermediary trust to the technological trust based on mathematical cryptography and global network. The blockchain system is a trust machine, which subverted the Nobel Prizewinning economist Herbert A. Simon’s assertion that “trust and attention cannot be transferred, cannot be mass-produced, and therefore cannot become a commodity.” Therefore, without intermediary, it directly realizes the low-cost, high-reliability trust commodity that can be supplied on a large scale and is the accelerator and catalyst for the progress of global social and economic activities. The blockchain system is a truth machine, so it will end the past in which heroes can modify history, or even reverse history and fabricate history. With a decentralized record that global majority agrees to confirm, the truth about major historical events will be preserved forever. The blockchain Internet makes the management of human society gradually enter the DAO era, that is, decentralized autonomous organization. It will gradually reduce the importance and management costs of traditional state management institutions. It will effectively curb the abuse of power by individual officials and significantly reduce the cost to fighting corruption. On the economic, financial, and monetary wealth system, the digital asset digital currency based on the blockchain gradually replaces the current sovereign paper money endorsed by the state, and the preservation of wealth may be easier. Seigniorage in every sovereign country will be gradually reduced. The digital economy supply-chain system combined with blockchain and smart contracts will likely end the historical economic model dispute between market economy and planned economy or the long-term debate between private ownership and public ownership social system. After entering the industrial revolution, the improvement of productivity made the cyclical product surplus and unsalable leading to the cyclical economic crisis of capitalism. As an attempt to improve, the planned economy model was first realized in the former Soviet Union, but its highly centralized managing pattern and low efficiency made it fail in the Cold War. By the end of the Cold War, the world’s leading scholars believed that the competition between social systems had been resolved. However, the global financial crisis triggered by Wall Street in 2008 has not recovered, and it is clear that the market economy is not a panacea. The economy could continue to function well if real demand can be converted into supply and satisfaction at efficient market prices. Before the information technology has not reached the highly developed level of today’s mobile Internet, the two extremes of overproduction or product shortage are easy to appear. The blockchain smart contract system allows the commodity plans of valid demand to be satisfied at a reasonable price recognized by the market. Demand and supply are highly matched, plan and market are perfectly combined. In theory, the economic system can be sustainable, efficient, and stable, and all parties are satisfied. Therefore, the original economic theory needs to be reassessed. Thus, some economic experts believe that the blockchain-based smart contract supply-chain system enables humans to enter the blockchain welfare society, or the computer welfare society, and the reconstruction of economic theory is urgent. Blockchain technology makes the Internet into the second half of blockchain Internet. The first half of the network is a centralized Internet, network management agencies and social platforms control the user’s data, so Twitter can block the present US President’s account, with tens of millions of fans instantaneously lost contact. In the second half of the decentralized network supported by blockchain, users have personal data, and the on-chain data is immutable, making the historical truth recorded by most people forever exist.