Bitcoin blockchain funny
blockchain is a general technology derived from bitcoin. It implements a decentralized database model. Bitcoin can be called blockchain 1.0 because it has no concept of smart contract. The key technologies of blockchain include cryptography encryption and decryption and consensus mechanism. Blockchain is generally used to combine with specific business logic, which needs to rely on smart contract, which provides an execution mode free from human interference
the IPO of ICO originates from the concept of initial public offering (IPO) in the stock market. It is the behavior of blockchain project to issue token for the first time, raise bitcoin and solve Ethereum and other common digital currencies.
does each node have complete blockchain data? You mean a user node? A user node needs to keep the of the block head of the longest workload proof chain, so it knows the data of all the block heads. It can move forward to know all the data on the block chain, but not all of them are saved. A block header is very small, only 80 bytes, which can be saved completely, because the generation of nodes is very slow. Even with the passage of time, the amount is not too large now.
To tell you the truth, this question will become very big if it is unfolded. If I want to write clearly my personal feelings from the beginning to the end, it will become smelly and long. So I want to use a few simple aspects and my personal views to answer this very difficult question
let's briefly talk about what bitcoin is, because this simple problem is misunderstood by most people at present. Because it is called "bitcoin", because there is a currency, this word naturally equals to RMB, US dollar, franc and other legal compensation currencies. In fact, this is totally wrong. The definition of legal currency is "the currency given by the state in the form of law for compulsory circulation". When bitcoin appeared, it was written in the white paper that the e-cash system was completely realized through point-to-point technology, which enables online payment to be directly initiated by one party and paid to the other party without any financial institutions
so what exactly is bitcoin? To be exact, it should be regarded as a commodity rather than a currency, because you can see in the white paper that "there is no need to go through any financial institutions". When bitcoin was created by Nakamoto, it was intended to change the life of the bank which was not trusted by the people because of the economic crisis. But we say the vision is good, but the reality is cruel. Even Alipay with 1 billion users can't get rid of the bank's life, let alone a small bitcoin. p>
but you can say why bitcoin is still used by many people for trading and its price is not low, that is because its market demand is very large, resulting in its high price. What is this demand for? Let's talk about it next time. In a word, its high market demand leads to high price. What is bitcoin? I prefer to compare it to a hard currency or a very scarce commodity. Like gold. Let's take a look at an interesting figure:
to tell you the truth, the development of blockchain is very, very early now. All of a sudden, so much capital has poured in, which makes everyone crazy. When the slump comes, it's a bit at a loss. Now the price of bitcoin is more stable, which gives more time for many people who are calm down to do things
out of trust in blockchain technology, bitcoin, as the genesis currency of blockchain, will have a place in the future. Money price is not the most important thing. But make a bold guess. Bitcoin or digital virtual currency will definitely recover in early 2020 and mid-2019. The bull market will come at that time. Is it possible to go back to $2W? Maybe more. Maybe
in the future world I imagine, blockchain technology will surely create a happier and better future for mankind. And the accompanying bitcoin will certainly lead to a bull market The fastest way to learn about p>
is to read more about the various currencies or project's white paper. I pay attention to my WeChat official account: "Nanjing block chain" can get thousands of white papers free of charge, so that you will have a better understanding of the chain world. p>
(blockchain) is the underlying technology of
bitcoin, like a database
ledger
, recording
all transactions
records. Because of its safety and convenience, this technology has graally attracted the attention of the banking and financial instry.