Bitcoin sing more

1.

The total number of bitcoins is 21 million

in 2009, when bitcoin was born, block reward was 50 bitcoins. Ten minutes after its birth, the first 50 bitcoins were generated, and the total amount of money at this time is 50. Then bitcoin grew at a rate of about 50 every 10 minutes. When the total amount reaches 10.5 million (50% of 21 million), the block reward will be halved to 25

when the total amount reaches 15.75 million (5.25 million new output, i.e. 50% of 1050), the block reward will be further halved to 12.5. The monetary system used to have no more than 10.5 million in four years, after which the total number will be permanently limited to about 21 million

extended data

monetary characteristics

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

5, no hidden cost: as a means of payment from a to B, bitcoin has no cumbersome limit of quota and proceres. If you know the other party's bitcoin address, you can pay

6. Cross platform Mining: users can explore the computing power of different hardware on many platforms

2. On May 22, 2010, Laszlo hanyecz, a programmer in Jacksonville, Florida, bought $25 worth of pizza with 10000 BTC. Up to now, it's about $2720 a bitcoin. If you want to know more about bitcoin or blockchain, you can follow Youku's "Yangyang interview"

3. Let's make a brief conclusion: according to the data a year ago, about 500000 BTCs are worth a little bit of taste:
1) two American brothers, Cameron Winklevoss and Tyler Winklevoss, claim to hold about 1% of bitcoin in the world? Now the total amount of bitcoin in the world is about 12 million BTC, that is to say, these two brothers hold about 120000 bitcoins. Maybe you don't think these are too valuable, but note that the starting price of bitcoin for these two people is below $10 / BTC. At the current market price of $430 / BTC, the yield is...... (2) Li Xiaolai claims that he is the first person in China to hold bitcoin, holding six digit bitcoin (no video link found.)
3) after the founder of the silk road was arrested, his 140000 bitcoin was seized by the FBI [2]
therefore, the people who have the most bitcoin should hold more than 1% of the world's total. This can be seen from the daily BTC holdings list
more systematic research comes from academia. The Israeli mathematician ADI Shamir (if the name is unfamiliar, he is the s in RSA algorithm) published a paper "quantitative analysis of the full bitcoin
transaction graph" in 2012, which analyzed the transaction records of the first 18000 blocks in the special currency system (as of May 13, 2012), This paper studies some interesting problems in bitcoin market
in their analysis results, at the end of the first 18000 blocks of chain, the entities with the most bitcoin holdings range from 200000 to 400000 BTC (the article does not give specific figures), and only one entity with more than 200000 bitcoin holdings. In history, the largest amount of money held was more than 500000 BTC, with two entities
note that "entity" is used instead of "person". In the analysis method of this paper, bitcoin wallets that may belong to the same owner are classified as the same entity. This entity may not only be a person, but also be a trading organization such as Mt. GOx
in addition, by analyzing the table of the most active entities given in the article, the income of the people with the most income (excluding expenses) is below 700000 BTC. In other words, the person who owns the most bitcoin will not hold more than 700000 BTC

5. The first is Nakamoto, who is said to hold more than 1.1 million bitcoins, the largest in the world.

6. Li Xiaolai, take bitcoin when you throw it

7. It is to write sensational words ~ to write your thesis, how detailed the teacher's advice is, when there is no information, I will improve the information for you, edit the outline of the whole thesis, and read it carefully, which will have a far-reaching impact on your future work. The conclusion is mainly the summary of the thought of the style in the paper, just say the meaning in the introction ~
eg: This paper is completed under the careful guidance and strong support of teacher XX. Teacher X has a great influence on me with his rigorous and realistic academic attitude, high professional spirit, conscientious, assious work style and bold and innovative enterprising spirit. Her profound knowledge, broad vision and keen thinking give me deep enlightenment. At the same time, in this graation project process, I also learned a lot about microbial fermentation knowledge, experimental skills have been greatly improved.

8. Paperless money is the future development trend. Some developed countries in the world have begun to try electronic money.

9.

This is related to luck, generally about 10 layers will be g to about 20

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