Blockchain 100 questions 35

1. Do you want to learn blockchain development technology or just want to know what blockchain is? If it is the former, you can look at the code of other blockchain projects and learn about it first. If it is the latter, we can pay attention to some good blockchain we media. Blockchain is an emerging instry. There is no ready-made training course. It depends on self exploration and understanding.

3. The bitcoin system can adjust the difficulty coefficient to ensure that bitcoin will not be g out too quickly
in order to ensure the stability of bitcoin and dig out a block in about 10 minutes, Nakamoto Tsung designed that the difficulty of getting bitcoin from miners mining should be dynamically adjusted every 2016 blocks (about 2 weeks). After the adjustment, the expected time for each block to be generated is 10 minutes. Now the difficulty factor is about 480ph / s. With the current computing power, the miners in the whole network need to go through about 300 trillion hash operations to find a qualified answer and generate new blocks.

4. In Himalayas, Lao Wang talks about finance, which is easy to understand

5. Unfairly,
on the blockchain, code replaces text, becomes a new form of contract presentation, and even automatically executes, which is an outstanding contribution of blockchain code farmers. With the "rampant" of code as contract, combined with the future of artificial intelligence, perhaps the leader of the future blockchain world will become Homo sapiens, and code will become the yardstick of the "remote control" community.

6. The first is to use professional code audit services,
the second is to understand the security code specification, and take preventive measures.

7.

Bitcoin (abbreviated as BTC) is a point-to-point, decentralized digital asset proposed by Nakamoto (alias); In 2009, Nakamoto Cong packaged the first block and won 50 bitcoin mining awards, which are halved every four years. According to this calculation, bitcoin is expected to be issued in 2140, with a total of 21 million

do you understand what bitcoin is now? If you don't understand, just continue to look down ~ "blockchain 100 questions" makes you a blockchain brick~

8. To put it simply, in the past, transactions were accounted by third-party platforms (Taobao, Jingdong, etc.), and blockchain kept a of this account book for each party (consumers, businesses, third-party platforms), so there was no way to go back on it, and there were more layers of protection
let's give an example. For example, in our usual online shopping, after placing an order, our money will be transferred to the intermediary platform of the third-party payment agency. After the seller delivers the goods and the buyer confirms the receipt of the goods, the buyer will inform the payment agency to transfer the money to the seller's account
however, the transaction mode supported by blockchain technology is different. Buyers and sellers can trade directly without any intermediary platform. After the transaction between the buyer and the seller, the system publishes the transaction information in the form of broadcast, and all hosts receiving the information record the transaction after confirming that the information is correct, which means that all hosts have done data backup for the transaction. If there is a problem with the orders proced by this machine, its data information will not be affected, because there are countless machines backing up data at the same time.

9. That's a sure way to go. Now digital currency is just like the sale of new shares