Settlement time of Ethereum

1. Some institutions have predicted that Ethereum will rise to $2500 by the end of the year, but it seems unlikely in the current market. Domain Kingdom's latest Ethereum price is $166, down 16% from yesterday
although the price of Ethereum continues to decline, there are still many investment opportunities. Nowadays, many people invest in Ethereum through virtual currency trading in the realm Kingdom, which is not affected by the rise and fall of prices, but also can invest less money in the shortest time to obtain more income.

2.

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 the

blockchain 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

3.

If you want to query the transaction records on the main network, you can use Etherscan. However, if you build your own private chain, how should you query the transaction records

the answer is that you need to listen to the logs on the chain, save them in the database, and then query them in the database. For example:

< pre t = "code" L = "Java" > varaddr = & quot& quot;< br />varfilter=web3.eth.filter({fromB lock:0 ,toBlock:' latest', address:addr });< br />filter.get(function(err,transactions){
transactions.forEach(function(tx){
vartxInfo=web3.eth.getTransaction(tx.transactionHash);
/ / at this time, the transaction information txinfo can be stored in the database
})< br />});

Web3. Eth. Filter() is used to monitor the log on the chain, and Web3. Eth. Gettransaction() is used to extract the information of the specified transaction. Once the transaction information is obtained, it can be stored in the database for query

recommend a practical introction, you can see: Ethereum tutorial

4. It depends on the difficulty of the algorithm and the current currency price. The income is not fixed!

5. Generally, it will arrive in ten minutes

6.

The

Ethereum mining

Berlin hard fork will mark the end of the metropolitan era. This is a key stage in Ethereum's history, which is divided into two stages (Byzantine and Constantinople), including several branches, including Atlantis, Istanbul, and finally reached its peak in Berlin

7. 1. The first feature of blockchain is decentralization. How to understand it? Taking the trading book of the foreign exchange trading platform as an example, through the comprehensive and in-depth application of blockchain technology, the foreign exchange trading platform can record all relevant information in a distributed account book, making it difficult for traders to tamper with their trading records, and investors can clearly understand their own capital status and each order transaction, It also changes the opaque trading status of the foreign exchange instry in the past, and is concive to strengthening the competitiveness of the formal and high-quality foreign exchange trading platform
2. The second feature of blockchain is security. Because the blockchain is composed of each encrypted data mole, it has a specific defensive. When the blockchain technology is applied to the safe operation of procts and the management and operation of the platform, this natural security defense mechanism will rece the operation cost of the platform, and the risk coefficient of the platform will be greatly reced
3. When the security and trust are highly solved through blockchain technology, the transnational settlement and transaction efficiency of transactions will undoubtedly be greatly improved. At this time, compared with the past, the foreign exchange trading platform with block chain technology has higher technology content, which can provide more professional service requirements for investors. It's a wonderful thing for investors.

8. may not!!!