BTC108

1.

According to the exchange rate on December 6, 2019, 100 bitcoin = 5206680.68 yuan , exchange rate: 1 bitcoin = 52066.8068 yuan

bitcoin is a kind of digital currency, which is composed of a series of complex codes generated by computer. The new bitcoin is made by preset program

compared with fiat money, bitcoin does not have a centralized issuer, but is generated by the calculation of network nodes. Anyone can participate in the manufacture of bitcoin, and it can circulate all over the world. It can be bought and sold on any computer connected to the Internet. No matter where they are, anyone can dig, buy, sell or collect bitcoin, And in the transaction process, foreigners can not identify the user's identity information

extended information:

characteristics of bitcoin

1. Decentralization: bitcoin is the first distributed virtual currency, and the whole network is composed of users without a central bank. Decentralization is the guarantee of bitcoin's security and freedom

2. Global circulation: bitcoin can be managed on any computer connected to the Internet. No matter where you are, anyone can dig, buy, sell or collect bitcoin

3. Exclusive ownership: private key is needed to control bitcoin, which can be stored in any storage medium in isolation. No one can get it except the user himself

4. Low transaction cost: bitcoin can be remitted free of charge, but a transaction fee of about 1 bitfen will be charged for each transaction to ensure faster transaction execution

2. One of the controversial attributes of bitcoin is its fixed supply. At present, 25 new bitcoins are proced every 10 minutes, and the number is halved every four years. Overall, there won't be more than 21 million bitcoins & gt;. On the other hand, each bitcoin can be divided into 100 million shares (each is called 1 "cong"), if one cent is enough to buy a car, it will be troublesome to trade in US dollars, but even if bitcoin rises to the level of US dollars assumed above & gt; We will not encounter such problems. Therefore, in short, the total number of monetary units that will always exist is 2100 billion, that is 2100 trillion, or 250.899. In the square of choosing this value & gt; In fact, Nakamoto is much luckier or smarter than most people realize. First of all, this number is far less than 264-1, which is the largest integer that can be stored in the form of standard integer in a computer. If it exceeds that value, & gt; The value will return to zero like a odometer
secondly, however, there is a smaller threshold for the total number of "smart": the largest possible integer that can be represented in floating-point format. Integers are not the only numbers that computers can store; To deal with decimals, computers & gt; Use a format for floating point representation. Floating point notation is essentially a binary version of scientific notation. For example, here is a value you will encounter when you study physics:
mass of the earth: 5.972 1024 kg
mass of the sun: 1.989 1030 kg
speed of light: 2.998 108 M / s
light year: 9.460 1015 m
mass of proton: 1.672 10-27 kg
Planck length: 1.616 10-35 m
we can notice that, How does scientific notation allow you to represent all of these values with reasonable accuracy, even though they vary greatly in size. Floating point notation is essentially a binary scientific notation; When you store numbers & gt; When the word is 9.625, what your computer stores is "1.001101
* 1011" (in other words, it stores 0100000000100011
& gt; This is the same thing with high-precision sequence form). In this high-precision form, the coefficient (that is, the part that is not the exponent) has 52 bits. This means high precision (more refined & gt; Double precision floating point number is enough to store up to 253 numbers, but it can't be any higher. If it exceeds 253, you have to start cutting off the numbers at the end. Bitcoin's 250.9, the total number of "smart" in the form of index, is just & gt; OK, below this maximum
if we have integers, why should we care about floating-point values? Because more high-level programming languages (such as JavaScript) do not open low-level "floating point" and "integer representation", but only provide "number" representation for programmers; Concepts
– of course, in floating-point form. If Nakamoto chose 210 million instead of 21 million at that time, bitcoin programming in many languages would be much more troublesome than it is now
note that Stefan Thomas unfortunately didn't notice this in time when he wrote bitcoinjs, so that the library used a special "big number big
number" object instead of an ordinary number to store the tutorial output value; My own bifurcated bitcoin JS (along with other improvements) uses ordinary numbers.

3. It's more worthwhile to exchange one point for one yuan, and now it's another 25 yuan for monthly activities.

4.

Guozun (Dalian) blockchain Technology Co., Ltd. is a limited liability company (invested or controlled by natural person) registered in Ganjingzi District, Dalian City, Liaoning Province on May 16, 2018, with its registered address at 182-6 Haimao street, Ganjingzi District, Dalian City, Liaoning Province

the unified social credit code / registration number of guozun (Dalian) blockchain Technology Co., Ltd. is 91210211ma0xr3u54d, and Xu Changchun, the legal person of the company, is currently in business

guozun (Dalian) blockchain Technology Co., Ltd. has a general registered capital in the province

guozun (Dalian) blockchain Technology Co., Ltd. has invested in one company with 0 branches

view more information and information of guozun (Dalian) blockchain Technology Co., Ltd. through network enterprise credit

5.

ICBC Code: icbkcnbj

swift bank identification code is composed of the following parts:

Bank Code: it is composed of four bank initials which are easy to identify

country code: it is composed of two letters according to the regulations of international organization for standardization

location code: it is composed of two digits or letters, indicating the city

Branch Code: it is composed of three digits or letters, indicating the branch

at the same time, swift also compiles a code for banks that have not joined the swift organization according to this rule instead of entering the full name of their banks in the message. All such codes are marked with "BIC" in the last three digits to distinguish them from the swift address code of the official swift member bank

extended data:

swift code is a bank identification code proposed by swift Association and approved by ISO. All member banks of the association have their own specific swift code. When wire transfer is made, the remitting bank can remit the money to the receiving bank by sending payment message according to swift code of the receiving bank

is equivalent to the ID number of each bank. Its original name is BIC (Bank Identifier Code), but the meaning of the name BIC is too broad. People are worried that some people will understand it as other bank identification code systems, so it is graally accepted that BIC is called swift code

Swift (Society for Worldwide Interbank Financial Telecommunications) is a private joint-stock company jointly owned by financial institutions. It is registered according to Belgian laws and managed by member banks and other financial institutions

6. As early as April 2013, they were reported by the media to have 1% of the total circulation of bitcoin, which is estimated to reach 108000 BTC. This is just a media report, not necessarily true. Domestic bitcoin tycoon Li Xiaolai once claimed that he had six digit bitcoin. But no one knows exactly how much, and they have not disclosed their bitcoin addresses, but they do have a lot of bitcoins.