Ethereum token transaction needs synchronous block height

1. You can choose to trade in the digital currency exchange. At present, the mainstream digital currency exchanges in the market are coin security, fire currency and bitnet.

2. Ethereum blockchain has exposed three major problems, and its founder vitalik buterin has been unable to interpret them for a long time. The first is the low performance and TPS of Ethereum blockchain as a whole; The second is that resources are not isolated. The event of cryptokitties virtual cat once occupied 20% of the traffic of the whole Ethereum, which directly caused Ethereum network users unable to carry out timely transactions, which is the biggest pain point of resources not isolated; The third problem lies in the embodiment of Ethereum's governance structure. As a decentralized distributed ledger, the founder team of Ethereum has dominated its network development in the past. The over centralized governance mode has led to the bifurcation of eth, etc and ETF in Ethereum, and the Ethereum community is now in a state of fragmented governance. In the view of Ma Haobo, founder and CEO of "aelf", all kinds of disadvantages of Ethereum are unacceptable. Therefore, the positioning of "aelf" is born for the next generation of decentralized underlying computing platform of Ethereum, which focuses on solving the problems of insufficient performance, non isolation of resources and governance structure of Ethereum.

3.

No, the general big exchanges will do the mapping for you. EOS can be understood as enterprise operation system, which is a blockchain operating system designed for commercial distributed applications. EOS is a new blockchain architecture, which aims to extend the performance of distributed applications. Note that it is not a currency like bitcoin and Ethereum, but a token based on the EOS software project, known as blockchain 3.0

extended information:

previously, e to the super node election campaign of EOS, almost the whole currency circle participated in it: exchanges, mining pools, big V came in droves, and even the well-known overseas "Wenzhou Gang" also ran with billions of assets, which once pushed the price of EOS up. Non trumpet data show that in the middle and late March, EOS was in a low hovering period. On March 19, the price was only US $4.02, and the total market value of EOS was US $3 billion

in April, more teams and indivials continue to pour into the annual drama of the currency circle. On April 11, antpool ant mine announced to join. On April 20, baoerye arrived. On April 24, bitfinex and huocoin mine also announced to join the super node election. For a while, EOS has formed a strong momentum, boosting the price up all the way. By April 30, the price of EOS has increased to US $20.05, with a market value of US $16.5 billion

in May, the situation began to change, consistent with the downturn of digital currency market, and EOS also started a downward trend. By May 31, the price of EOS had fallen to a small bottom of only $11.94. In the following week, as the original date of main online line, June 8, approached, the price of EOS bucked the trend and rose to $14.29 on that day

unexpectedly, on June 8, e to the negative vote of one third of the participating nodes, the main network was not successfully launched, so it had to be postponed. On June 10, it was launched again, but failed again because the online voting rate was only 1.77%, which did not reach the 15% voting rate required by the main network

this situation quickly transmitted to the market price. Within a few days, the price of EOS went down again, from US $14 to US $13 and US $11. On June 14, the price of EOS "broke through ten" and fell to US $9.68. As of June 28, the price of EOS had dropped nearly 60%

4. After the hard bifurcation of etc, ETH came into being. The relationship between the three currencies is just like that between yen, won and US dollar

5. Note that Ethereum is 2.0 now. As of 13:57 on the 4th, the current deposit contract address of Ethereum 2.0 has received 1000098eth, and 31252 addresses have completed the mortgage of 32eth. With the increasing number of mortgage, the annual yield of mortgage will graally decrease. After the mortgage amount reaches 1 million eth, the current annualized yield is about 15.7%. Zhongyuan, a well-known exchange, has taken the lead in opening the mining channel of eth2.0 verification node, and then launched qeth. Users can invest their own eth in verification node mining and exchange qeth to obtain liquidity, and then participate in mining. Compared with the disadvantages of eth2.0, qeth has too many things: the liquidity is guaranteed, the user does not have to bear the technical cost, the threshold of participation does not need 32 eth as low as 0.1eth, the nodes are maintained by the platform, and the income is distributed according to eth2.0.

6. Today (January 3) is bitcoin's "birthday"; It was on January 3, 2009, nine years ago that the "Genesis block" was born in the bitcoin blockchain network, that is, the groundbreaking block # 0, "Block 0".

7. Ethereum is a low-level system that can realize intelligent contract and open source on the blockchain. At present, the biggest development problem of Ethereum is that all applications use the main chain, which leads to the main chain not being separated and blocking seriously. The mission of aelf (ELF) is to solve it,? LF emphasizes the pure decentralized network, the side chain and the main chain can flow, and the asset side chain is connected to the main chain. It focuses on the "n-side", because it turns the planar blockchain structure into a three-dimensional multi-dimensional structure. It can divert the block trading volume to the greatest extent. Therefore, problems like "blocking" or even "paralyzing" existing in Ethereum will not appear on aelf. This is also the reason why elf token will double in two weeks, indicating the development direction of the next regional chain technology.

8. < blockquote >

in today's mobile payment era, few people will use coins for payment . A lot of people, they think that mobile payment is more convenient, if you carry RMB, it will be very troublesome, so now less and less people use paper money to pay. In fact, the process of making paper money is also very complicated. The materials used to make coins are different metals. Compared with those rare metals, low-cost metals are more suitable for making coins

< / blockquote >

and those rare metals, such as gold or silver, are suitable for making commemorative coins with collection value . In many countries, some of their currencies are made of alloy, because it is a very ideal material for coinage, and the hardness is improved by mixing with other metals. At the beginning of making coins, we should choose the materials and put the selected metals in the furnace for casting and melting. After many times of rolling in the rolling workshop, the thickness of the coin can meet the requirements of coins, and it can be made into semi-finished procts for further processing{ RRRRR}

with the progress of science and technology, now many mold making machines have become engraving machines for casting to replace the previous manual process . It can improve the accuracy to a certain extent. It used to take a whole day to manufacture, but now it can complete the remanufacturing of the mold within a few hours. After that, it can be pressed on the coin, and the coin will become the currency in circulation

9.

Yes

blockchain can solve the problem of mutual trust in transactions

< H2 > smart contract solves the problem of mutual trust in transactions

since the beginning of bitcoin, blockchain technology has been developing continuously. In 2014, Ethereum further developed a variety of new functions of smart contract technology. Smart contract is linked in the form of digital, & quot; Once generated, the information recorded in the blockchain will be permanently recorded and cannot be tampered with; It can solve the trust problem of "strange trust"

ulord has the property of smart contract, which introces the design concept of gas, but different from Ethernet gas, every operation consumes gas. Compared with the gas concept of ether, ulord adopts a more simplified and abstract method. The resources and sites that users publish on the ulord consume the resources on the ulord network. Therefore, when users publish resources or sites, they need to bind a certain amount of ulordtoken. With the growth of block height, the ulordtoken will be consumed graally. Users need to fill in a new ulordtoken at the address corresponding to the consumed site to ensure the ownership of the domain name. At the same time, through the side chain technology, it can be compatible with the Ethernet virtual machine, publish smart contracts, and allow users to publish their own tokens. There is a certain proportion of exchange relationship between tokens and ulordtoken. Ulord allows users to customize the release of their own site services, and by issuing their own tokens, they can operate their own site

< H2 > ZK snark technology to protect transaction privacy

ulord will adopt the most mainstream privacy protection ZK snark technology to protect transaction privacy. In the ulord blockchain, creating an effective transaction includes the following three things:

1

2. The sender proves that he is the "holder" of the currency by means of authorized signature

The input of transaction is equal to its output

the work of proving that money has not been spent before is done by the ledger itself, which does not require the sender to do any work. The sender only needs to prove that he is the holder of these currencies, and he wants to send these currencies by means of electronic signature through the private key corresponding to the address. In order for the signature to be verified, the sender's address must be public. Correspondingly, the receiver must disclose the receiving address to complete the transaction process. In the use of ulord, it is simple to verify that the input and output of the transaction are equal, because the number of transmissions is fully revealed

10. ECall token: eCall is erc20 token realized through Ethereum smart contract. It adopts block chain technology. All transaction processes on the chain need the approval of each node in the network, and the whole process is transparent and open. The currency was launched on Bitz, hotcoin, dcoin and AEX exchanges in November, opening the ecell / usdt trading pair. Previously, ecell has been launched on bittrex global and MXC Matcha exchanges. As a token on the Ethereum chain, ecell's various advantages are worth promoting.