Ethereum transaction inquiry
Publish: 2021-04-15 14:21:29
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. 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.
3. 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.
4. For indivial investors, the realm kingdom with lower investment threshold is more suitable, because its entry threshold starts from $100, which is very low.
5.
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
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. With the blockchain browser, bitcoin has its own browser. Ethereum and bitcoin are both used. The token based on Ethereum can also be queried on Ethereum's blockchain browser, and usdt can be queried on bitcoin's blockchain browser
8. Search Ethereum blockchain browser or bitcoin blockchain browser. If it is based on other chains, search other browsers to view
9. The withdrawal of digital currency generally only occurs on the digital currency trading platform. Where to withdraw cash? It is suggested to check the account number of the accounting platform carefully. It is generally in the personal center. The specific situation still needs to consult the official personnel, and the answer given by the official shall prevail. However, when choosing a digital currency trading platform, it is better to choose a big platform such as Xigu digital asset trading platform and bitcoin China.
10. 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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