How many times does Ethereum private chain confirm before packin
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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
2. The return of EOS reces the market flux and boosts the price
3.
A: generally, there is only one account address, otherwise there will be an error! blockchain itself is unique. If there are multiple account addresses on one node, it violates the fundamental principle of blockchain!
as long as you can continuously spread the shortcomings of bitcoin and rece the number of people who hold bitcoin, it will basically affect the operation of the exchange. If bitcoin can't be traded, it will only have some academic research value
The total number of atomic coins issued was 100 billion, and the total number of atomic coins was 1; 10 mapping
token is a tool to measure the transmission and transformation of value. As the parties participating in the construction of the system, token is the qualification basis for the distribution of rights and interests. Atomic chain will issue endogenous currency, which we call ATOS. In the initial stage of the system, it will be released based on erc20. In the medium-term stage, the 1:1 smooth migration to the main network of the atomic chain. Erc20 is a standard protocol on Ethereum network. It uses the protocol interface to create a token, which is used as the basis of warrant and qualification of each role. ATOS is the basic circulation value of the whole ecosystem. Through ATOS, users can realize transaction, value transfer, enjoy value preservation and increase, and vote. Atos is also the basic reward condition for each role to participate in. Through the reward, the enthusiasm among the roles can be stimulated, and the virtuous cycle of the ecosystem can be promoted. In order to fight against inflation and maintain and increase the value of contracts, we will issue a fixed number of ATOS. Through ecological operation, ATOS will maintain a certain minimum value. We use push in the ecosystem to push the ecological event report according to a certain period< ATOS is divided into circulation pool and lock pool. Under the condition of constant total amount, the total amount of market circulation and lock pool will maintain a certain proportion, so as to achieve the balance point within the pool