Ethereum Baidu cloud disk
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Ethereum is an open source public blockchain platform with smart contract function. It provides decentralized virtual machine (Ethereum virtual machine) to process point-to-point contract through its special cryptocurrency ether (also known as "Ethereum")
The token on theblockchain is called ether, and the code is eth. It can be traded in many foreign exchange markets of cryptocurrency, and it is also the medium used to pay transaction fees and computing services on Ethereum
the concept of Ethereum was first proposed by vitalik buterin, a programmer, from 2013 to 2014, inspired by bitcoin, with the general meaning of "next generation cryptocurrency and decentralized application platform", and began to develop through ICO crowdfunding in 2014. As of February 2018, Ethernet is the second highest cryptocurrency in market value, second only to bitcoin
extended data:
Ethereum platform has no characteristics and value. Like programming languages, it's up to entrepreneurs and developers to decide what to use. However, it is clear that some application types benefit more from the functions of Ethereum than others. Ethereum is especially suitable for those applications that automatically interact directly between points or promote group coordination activities across networks
for example, coordinate the application of point-to-point market, or the automation of complex financial contracts. Bitcoin enables indivials to exchange money without the help of financial institutions, banks or governments. The impact of Ethereum may be more profound
in theory, any complex financial activities or transactions can be automatically and reliably carried out on Ethereum with coding. In addition to financial applications, any application scenario with high requirements for trust, security and persistence, such as asset registration, voting, management and Internet of things, will be affected by Ethereum platform on a large scale
etc (Ethereum Classic) is a bifurcated currency that Ethereum hard bifurcates after 1920000 blocks, and its function is very similar to Ethereum. Etc adheres to the concept of decentralization and supports the consensus mechanism of blockchain guarantee. Etc firmly believes that once the blockchain starts to run, its development direction will not be controlled by any central team, but will be determined by the consensus of the people participating in the whole network and the consensus of the computing power of the whole network
the Ethereum blockchain hard branching in July 2016 aims to transfer the Dao funds stolen by hackers to an account controlled by investors, and let the old transaction records be forgotten by history. Most Ethereum developers are involved in the reversal, as are exchanges, startups and other members of the ecosystem. A few days later, the project returned to normal. But not everyone wants to forget the old record. As a result, a small number of miners continued to use the original blockchain as a protest. They described the hard fork as a capital withdrawal for the abandoned project of the Dao. So Ethereum classic (etc) was born
2. Detailed parameters
Chinese Name: Ethereum classic English Name: Ethereum classic English abbreviation: etc
developer: Ethereum Classic team core algorithm: ethash consensus proof: POW
release date: 2016 / 7 / 20 block time: About 15-17 seconds / block
total currency: fixed at 210 million, up to 230 million, Every 5 million blocks decelerate by 20%, and the first proction rection is expected to be in December 2017
main features: independent cryptocurrency
I had a similar problem when I went from okex to HTC yesterday
in the framework of Global trade security and facilitation standards formulated by the World Customs Organization (WCO), it is defined as "the party who participates in the international circulation of goods in any way and is recognized by the customs authorities as meeting the WCO or the corresponding supply chain security standards, including the manufacturer, importer, exporter, customs broker, carrier, tallyman, middleman Port and airport operators, cargo terminal operators, integrated operators, warehousing operators and distributors "
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the benefits of AEO certification enterprises
according to the relevant provisions of the Interim Measures of the customs of the people's Republic of China on enterprise credit management, senior certification enterprises apply the following management principles and measures:
(1) lower inspection rate of import and export goods
(2) simplify the examination of import and export documents< (3) give priority to the customs clearance of import and export goods< (4) other management principles and measures stipulated by the General Administration of customs< (5) go through the inspection and release proceres before determining the commodity classification, customs valuation, origin or other customs proceres of import and export goods< (6) the Customs set up a coordinator for enterprises< (7) for enterprises engaged in processing trade, the bank margin account system is not implemented< (8) AEO recognizes the customs facilitation measures provided by the customs of countries or regions
according to the requirements of the customs certification enterprise standard, senior certification enterprises generally include 5 categories, 18 items and 32 indicators, including internal control, financial status, law-abiding norms, trade security and additional standards
the basic score of certification is 100, the score of reaching the standard is 0, and the score of partially reaching the standard and not reaching the standard are - 1 and - 2 respectively. If an enterprise wants to pass the advanced certification, it needs to carry out self-evaluation and verification item by item. After the customs audit, there is no non-standard situation in all items, and the final total score of certification standard is more than 95
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AEO enterprise certification implements dynamic adjustment system. The customs should re certify the senior certification enterprises every three years, and re certify the general certification enterprises from time to time
If a certified enterprise fails to pass the recertification and applies to the general credit enterprise management, it shall not apply to become a certified enterprise again within one year; If a senior certification enterprise fails to pass the re certification but meets the general certification enterprise standards, the general certification enterprise management shall apply
note: advanced and general certification standards of Customs certification enterprise standards can be viewed from the following website.