Ethereum transaction flow query
Publish: 2021-05-17 15:14:35
1. Besides bitcoin, Ethernet is the second largest digital currency, and there is a strong consensus in the community. Basically, as long as it is an exchange, it will be on the Internet, such as fire coin, whale exchange and coin security. Ethereum is the token of Ethereum. Ethereum provides a complete set of Turing script language to build applications, which has a huge imagination in the future.
2. China bitcoin chbtc is the largest eth trading platform in China. Eth / BTC trading was launched on March 14, 2016, and it developed rapidly in just over a month. On April 30, the trading volume of eth / BTC had exceeded one million.
3. For indivial investors, the realm kingdom with lower investment threshold is more suitable, because its entry threshold starts from $100, which is very low.
4.
transactions.forEach(function(tx){
vartxInfo=web3.eth.getTransaction(tx.transactionHash);
/ / at this time, the transaction information txinfo can be stored in the database
})< br />});
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
5. At present, Ethereum is still good. If you want to check real-time data, you can use two kinds of Ethereum, namely, fire coin and cell ETF. You go to see celletf.pro
6. Just focus:
you can't retrieve your assets through Ethereum block query
think too much
if you want to check the real estate,
you can go to the real estate transaction registration center.
you can't retrieve your assets through Ethereum block query
think too much
if you want to check the real estate,
you can go to the real estate transaction registration center.
7. Looking for experts
8. Highlights
the Ministry of Ecation said that it will increase investment in art ecation this year and hold a National School Aesthetic Ecation Conference on the 21st< In recent years, Zhejiang, Anhui, Guangdong and other provinces have launched provincial environmental supervision, focusing on thermal power, steel, cement, glass, waste incineration and other instries
the Hang Seng ah premium index closed at 122.58, a new low in the last 10 months. Analysts believe that the ah share price gap will further narrow with the expansion of interconnection< It is estimated that the global gold demand and supply will rise by 1.5% and 0.5% respectively this year, and the gold price will break through in the second half of this year
04
major events
- the first digital China Construction Summit is about to be held in Hainan. We need to implement the strategy of
among the listed companies, gaoweida (300465) acquired 100% equity of Hainan nut creative Entertainment Information Technology Co., Ltd., which used big data analysis technology to build a mobile advertising platform characterized by hardware. Aofei data (300738) is the core provider of IDC (Internet Data Center Service), and Haikou Jinlu data center is under construction
● Alibaba's first shopping center will be opened soon, and the online and offline shopping centers will be fully integrated
the third phase of qinchengli shopping center in Hangzhou Xixi park will be officially opened on April 28. This is the first shopping center of Ali's new retail, which records consumers' purchase preferences through collection and storage. At the same time, Ali will implement new technologies such as "face brushing consumption", "zero burden shopping", "ar shopping guide" and "thousands of people and thousands of noodles" magic fitting in this project, so as to realize a new mode of online integration and offline (Omo), All brands of the shopping center are jointly operated online and offline to explore new retail brands of the Internet
comments: among the listed companies, Nan property (603506) qinchengli is the first commercial project of "light asset export management". Visionary (002841) has become the first hardware service provider of Alibaba new retail, jointly building the landing ecology of smart stores. Dashi intelligence (002421) has cooperation with ALI Alipay.
> Internet plus medical health policy will fall to the ground, and the demand for hospital information will rise
comment: electronic medical records, medical technology, information platform, grading treatment system, and big data analysis, cloud platforms and other high grade procts demand began to rise. Neusoft group (600718), Weining health (300253) and other listed companies have won relevant software projects in hospitals< More than 10 billion yuan of integrated circuit projects are contracted intensively, and consumables and equipment are the key points.
comments: there is a big gap between China and foreign advanced level in the field of semiconctor equipment and materials. With the proction of wafer factories, it is an inevitable trend to localize supporting semiconctor materials. We are optimistic about Jingrui (300655) and jianghuawei (603078), which are mainly engaged in wet electronic chemicals, And Shanghai Xinyang (300236) and other companies that have been invested by large funds<
05
policies and instries point to hot spots
Hainan explores and develops competitive sports lottery
mining Hainan lottery stocks: Aijian group (600643), Xinhualian (000620)
Hainan needs to implement big data strategy as a whole
Hainan big data concept stocks: aofei data (300738), gaoweida (300465)
Ali's first shopping center is about to open, Full integration of online and offline
Alibaba's new retail concept stocks: Nan property (603506), Shiyuan shares (002841), Dashi intelligent (002421)
- Alibaba is about to release its cloud communication procts
cloud communication concept stocks: Beiwei Technology (002148), mengwang group (002123), 263 (002467), etc Tianji Technology (300245)
panel manufacturers speed up the layout of 8K screen
8K screen concept stocks: precision electronics (300567), East China Technology (000727), BOE a (000725), shentianma a (000050)
indivial stock gold rush
> Huarui shares (300626) annual net profit increased by 44% year on year, and it is planned to transfer 10 shares to 8 shares and send 1 yuan< According to the information development (300469) annual report, it is planned to pay 1 yuan for 10 transfers and 8 transfers< The annual net profit of Shandong mining machinery (002526) increased by 567% year-on-year, and it is planned to turn 10 to 7< The annual net profit of Jianfa shares (600153) increased by 17%, and the holding of securities fund increased to 4.9% from 3.61% at the end of last three quarters
> Huayu automobile (600741) participated in the IPO of Yap automobile, and the company's shareholding accounted for 33.90% of the total share capital of Yap automobile before the IPO
> Tengda construction (600512) won the bid of 1.17 billion yuan civil construction project, accounting for 32.6% of the revenue in 2017
07
comments on leading stocks
Desheng technology-002908
comments: moreover, this vote resonates with the index in time sharing, which also belongs to the different to consistent seal back, so it is inevitable to enjoy the premium. The current objective disk situation, the strongest main line is undoubtedly Hainan, but not how to give opportunities. Digital China is an auxiliary line for diverting funds, which resonates with the index at the end of the day, but it is difficult to judge whether to take advantage of the situation or build up the momentum. It still depends on the situation.
the Ministry of Ecation said that it will increase investment in art ecation this year and hold a National School Aesthetic Ecation Conference on the 21st< In recent years, Zhejiang, Anhui, Guangdong and other provinces have launched provincial environmental supervision, focusing on thermal power, steel, cement, glass, waste incineration and other instries
the Hang Seng ah premium index closed at 122.58, a new low in the last 10 months. Analysts believe that the ah share price gap will further narrow with the expansion of interconnection< It is estimated that the global gold demand and supply will rise by 1.5% and 0.5% respectively this year, and the gold price will break through in the second half of this year
04
major events
- the first digital China Construction Summit is about to be held in Hainan. We need to implement the strategy of
among the listed companies, gaoweida (300465) acquired 100% equity of Hainan nut creative Entertainment Information Technology Co., Ltd., which used big data analysis technology to build a mobile advertising platform characterized by hardware. Aofei data (300738) is the core provider of IDC (Internet Data Center Service), and Haikou Jinlu data center is under construction
● Alibaba's first shopping center will be opened soon, and the online and offline shopping centers will be fully integrated
the third phase of qinchengli shopping center in Hangzhou Xixi park will be officially opened on April 28. This is the first shopping center of Ali's new retail, which records consumers' purchase preferences through collection and storage. At the same time, Ali will implement new technologies such as "face brushing consumption", "zero burden shopping", "ar shopping guide" and "thousands of people and thousands of noodles" magic fitting in this project, so as to realize a new mode of online integration and offline (Omo), All brands of the shopping center are jointly operated online and offline to explore new retail brands of the Internet
comments: among the listed companies, Nan property (603506) qinchengli is the first commercial project of "light asset export management". Visionary (002841) has become the first hardware service provider of Alibaba new retail, jointly building the landing ecology of smart stores. Dashi intelligence (002421) has cooperation with ALI Alipay.
> Internet plus medical health policy will fall to the ground, and the demand for hospital information will rise
comment: electronic medical records, medical technology, information platform, grading treatment system, and big data analysis, cloud platforms and other high grade procts demand began to rise. Neusoft group (600718), Weining health (300253) and other listed companies have won relevant software projects in hospitals< More than 10 billion yuan of integrated circuit projects are contracted intensively, and consumables and equipment are the key points.
comments: there is a big gap between China and foreign advanced level in the field of semiconctor equipment and materials. With the proction of wafer factories, it is an inevitable trend to localize supporting semiconctor materials. We are optimistic about Jingrui (300655) and jianghuawei (603078), which are mainly engaged in wet electronic chemicals, And Shanghai Xinyang (300236) and other companies that have been invested by large funds<
05
policies and instries point to hot spots
Hainan explores and develops competitive sports lottery
mining Hainan lottery stocks: Aijian group (600643), Xinhualian (000620)
Hainan needs to implement big data strategy as a whole
Hainan big data concept stocks: aofei data (300738), gaoweida (300465)
Ali's first shopping center is about to open, Full integration of online and offline
Alibaba's new retail concept stocks: Nan property (603506), Shiyuan shares (002841), Dashi intelligent (002421)
- Alibaba is about to release its cloud communication procts
cloud communication concept stocks: Beiwei Technology (002148), mengwang group (002123), 263 (002467), etc Tianji Technology (300245)
panel manufacturers speed up the layout of 8K screen
8K screen concept stocks: precision electronics (300567), East China Technology (000727), BOE a (000725), shentianma a (000050)
indivial stock gold rush
> Huarui shares (300626) annual net profit increased by 44% year on year, and it is planned to transfer 10 shares to 8 shares and send 1 yuan< According to the information development (300469) annual report, it is planned to pay 1 yuan for 10 transfers and 8 transfers< The annual net profit of Shandong mining machinery (002526) increased by 567% year-on-year, and it is planned to turn 10 to 7< The annual net profit of Jianfa shares (600153) increased by 17%, and the holding of securities fund increased to 4.9% from 3.61% at the end of last three quarters
> Huayu automobile (600741) participated in the IPO of Yap automobile, and the company's shareholding accounted for 33.90% of the total share capital of Yap automobile before the IPO
> Tengda construction (600512) won the bid of 1.17 billion yuan civil construction project, accounting for 32.6% of the revenue in 2017
07
comments on leading stocks
Desheng technology-002908
comments: moreover, this vote resonates with the index in time sharing, which also belongs to the different to consistent seal back, so it is inevitable to enjoy the premium. The current objective disk situation, the strongest main line is undoubtedly Hainan, but not how to give opportunities. Digital China is an auxiliary line for diverting funds, which resonates with the index at the end of the day, but it is difficult to judge whether to take advantage of the situation or build up the momentum. It still depends on the situation.
9. You can check the market of Ethereum on non trumpet, but you can't trade it. If you want to invest, you can go to the digital currency exchange. At present, all the mainstream digital currency transactions in the market are coin security, fire coin network, bitnet, etc.
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