Bitcoin lightning network and isolation witness

1. How to operate the isolation witness? In fact, it's not so simple ~
isolation witness is a method of blockchain expansion, which has been successfully implemented on lightcoin and bitcoin
at present, each block in the blockchain not only records the specific information of each transfer transaction, that is, at which time point the account receives or transfers out how many bitcoins, but also contains the digital signature of each transaction, which is used to verify the legitimacy of the transaction. The miner needs to verify each transaction one by one with digital signature when packing the block. After confirming that there is no problem, the transaction will be recorded in the block
however, for ordinary users, they only care about the number of assets in each account, and do not need to verify each transaction one by one. Isolation witness is to take out the digital signature information in the block, so that each block can carry more transactions, so as to achieve the purpose of expansion.

2. Bitcoin isolation verification simply means that there is an additional side chain. The main chain and the side chain complement and support each other. Isolation verification is to solve the problem of bitcoin congestion. At the end of 2013, the problem of bitcoin congestion has appeared, and the expansion has become the consensus of the community, but there is no consensus on how to expand
in 2016, the community held a meeting in Hong Kong on capacity expansion. At the meeting, China's absenteeism and bitcoin core reached a consensus and proposed a compromise scheme, namely hard fork and isolation certification. This is the result of compromise between the two sides, but later the core went back on its words and forced absenteeism to accept the isolation scheme, but did not expand the capacity. China mostly opposes the exclusion of isolation verification.

3.

To be honest, I had the same problem with the subject at the beginning. When I saw the news, I was a little confused and went to search. As a result, when I searched for lightning bitcoin or lightning bitcoin, either lightning network or bitcoin came out... This name is quite poisonous

Let's get down to business. Let's draw a conclusion first. It's not a thing at all

many people have talked about what lightning network is. You can look at other people's answers to get a deeper understanding of its mechanism, or you can go to the official website with better English to see their papers directly http://lightning.network/ . Lightning bitcoin official website in Chinese, save the trouble of translation https://lbtc.io/ . The origins of the two lightning bolts are very similar. They both hope to solve the problem of bitcoin network congestion. One is to carry the protocol, and the other is to change the fork to consensus. The results of the two lightning bolts are also good. The transaction speed is greatly improved, which can be regarded as real-time. The following table directly shows the similarities and differences between the two:

as can be seen from the above, the differences between the two are relatively large, and should not be confused any more~

4.

Lightning network is known as one of the most effective cryptocurrency expansion solutions currently being developed. The scheme was proposed in 2015, based on a network at the top of bitcoin blockchain, and finally implemented on the network. The network consists of user generated channels that send payments back and forth in a secure and untrusted manner

For example, suppose I want to pay for every minute I watch. We're going to open up a lightning channel, and as time goes on, we're going to make regular payments from my wallet to the video makers. When I finish, we will close the channel to settle the net balance on the bitcoin blockchain. Because transactions are only between me and the other party and do not need to be broadcast to the whole network, they are almost instantaneous. And because there is no incentive for miners, the transaction cost is low, or even no transaction cost at all

5.

In February 2015, bitcoin developers Joseph PON and Thaddeus dryja proposed the concept of scalable off chain payment -- Lightning network in their paper the bitcoin lightning network: scalable off chain instant payments. We know that a very important reason why the bitcoin network is reliable is that all the bitcoin nodes keep the bitcoin account books. If someone wants to tamper with the transaction records, they need more than half of the computing power of the whole network. Without the trust machine of blockchain network, how can we ensure that both sides of the transaction will not go back and deny? How is lightning network realized

in short, the lightning network is based on the expansion of bitcoin. Due to the limitation of bitcoin block, a new channel is required. The process of small amount delivery can be realized through the channel of lightning network without bitcoin miner accounting, which can speed up the speed and rece the handling charge. But how can such lightning network prevent the centralization problem? More details this video is very detailed: six minutes to understand the lightning network

but how long can the lightning network land

6. Hanging order is the number of orders waiting to be bought and sold behind the five trading prices transmitted from the exchange ring the market trading period. Together with five trading prices, these ten data constitute the most original public data in the whole trading system

7. They won't sue you. It's OK. Once there is a large loss, people will call the police, and you will be miserable

8. If there is a legal will, it should be done according to the will. If there is no will, it should be done according to the legal succession procere. It is necessary to explain the specific situation of your family, who is the registered house, and the specific situation of the heir