Describe the development and application of blockchain in the most vivid way
As the blockchain is listed as a technology for key development, the word blockchain has really become popular. Before, the price of Bitcoin soared directly from $7,000 to 10,000, and then there were overwhelming blockchain science articles in the media. Even when I went home, I was inevitably questioned by my seven aunts and eight aunts. The grand occasion was like forcing me to go on a blind date. Even the resident singer I met in the bar would call me money and ask me to buy him bitcoins.
Although there has been a big wave (strictly speaking, not just a wave) of blockchain science popularization, but parents and friends have come to the conclusion that "blockchain is so high that ordinary people can't understand it". At home, I still have to spend some time talking.
How to vividly describe the past and present of the blockchain? As the saying goes: If you want to attack a person, start with him. I have been thinking about it for a long time, or try to open the blockchain with the programs you often watch and the life you experience?
So the question is, how many steps does it take to put an elephant in the refrigerator?


Open the history of blockchain with Jianbao program
Hello everyone, welcome to today's "I'm Best at Appreciating Treasures" column. I'm "PayPal", a master of appraising treasures from Hong Kong, focusing on encrypted finance and not forgetting technology research and development.
Let's take a look at this object today. Looking at this craft, it should be an old object from the last century, and in terms of texture and color, it should be the famous "blockchain" that was born in 2009.
Let's take a closer look at the data records on this treasure. Behind the opening reveals a heavy encryption background. Although the address of the data transfer can be seen, the specific information behind the data cannot be traced.
Such a typical encryption style, if I remember correctly, its technology should have originated in 1976, under the guidance of "New Directions in Cryptography", and the asymmetric encryption, elliptic curve algorithm, and hash involved in this work Algorithms and other technologies are combined, supplemented by ECC algorithms, Byzantine fault-tolerant algorithms, and POW algorithms.
To make such a masterpiece, the inventor must have a strong technical background and a great innovative spirit. So it must be the mysterious figure named "Satoshi Nakamoto".
Back then, Satoshi Nakamoto wrote an excellent work "Bitcoin: A Peer-to-Peer Electronic Cash System", in which he explained some architectural concepts of the electronic cash system. Excellent product.
Then, on January 3, 2009, this great figure dug out the creation block of Bitcoin and connected it with the following blocks to form a chain, and this treasure was truly born.
But now, the inventor named Satoshi Nakamoto has disappeared mysteriously, leaving many encryption geeks to speculate.


Introduce the characteristics of blockchain in the way of Li Jiaqi
Order all the leeks, all the leeks, where are the friends who are deeply affected by inflation?
The lights and the stage are ready, your devil PayPal is here!

Dang bang bang bang! The product I want to introduce to you today was launched in 2009. Now it has a history of nearly ten years and has received praise from millions of users. It is a rookie in the technology industry - blockchain!
Don't underestimate it, it is an independent innovative core technology that claims to allow everyone to "get rid of the earth and get rid of troubles", it is super super powerful~
Speaking of which, Beibei, I have to be proud. From the beginning of this product release, Beibei has noticed its uniqueness. When I first saw him, I felt a feeling of love at first sight. ~
Look at these distributed nodes! Advanced gameplay, without the need for third-party intermediaries, directly eliminates the risk of trusting a single entity, and even greatly reduces the risk of counterparties. OMG! This is too safe!

Next, let's test its secrecy again. I'll transfer the money to my little assistant for everyone to see. I just put in my assistant's address, then my private key, wait a minute, look! Turn around soon! Let's check on the chain again, look here! Only our amount and address are displayed on it, no personal information at all, very privacy-oriented, and very fast, OMG, this is too smooth! With such a special experience and privacy settings, you will be a trendy person in the new era!
Applying decentralized technology to the financial field, the blockchain has given full play to its advantages of convenience and non-tamperability. In the existing financial system, cross-border, centralized institution confirmation, and handling fees can all become factors that affect transaction efficiency. When a large amount of cross-border transfer is completed, it may be many days later, and the transaction may even fail.

But in the blockchain system, this will not happen. When you initiate a transfer, there is no need for confirmation from a centralized organization, no complicated procedures, no national border restrictions, and no high handling fees. As long as both parties to the transaction confirm the transaction, you can arrive at the account very quickly, which is very convenient and fast. It can be said to subvert the existing financial system, the savior of globalization, and the nemesis of trade barriers! OMG! Super cost-effective net red product!
Therefore, the blockchain can be said to be the lowest-cost, safest, most autonomous, and anonymous innovative disruptive product among existing technologies, and it is the best choice among the same technologies! Attention everyone! This morning, the little assistant sorted out the latest information on the blockchain for everyone with disheveled hair, privately customized, to let you know the cutting-edge news of the industry, just look at the official account: Babel Information! Early layout, you can seize the commanding heights of this emerging field earlier!
Layout layout layout!

Opening the application of blockchain with insurance
Li Hua is a villager in Naidong Village.
On this day, in order to meet the needs of the plot, Li Hua suddenly had a stomachache. While clutching his stomach "Ouch, Ouch", he asked his mother, Han Meimei, to take him to the hospital for an examination.

Mother saw that he was in severe pain, so she took Li Huaxian to the small clinic in the village to have a look. But the doctor in the clinic, Cheng Ye, found that the plot was not as simple as imagined: Li Hua didn't eat bad stomach, but had symptoms of acute appendicitis, and he had to be taken to the town hospital for a diagnosis, probably requiring surgery.
Han Meimei drove poor Li Hua to the hospital in the town, and called the expert Dr. Li. Soon after being authorized, Dr. Li made a diagnosis, and by checking the medical records on Li Hua's medical block, combined with Dr. Cheng Ye's initial diagnosis of his condition, he confirmed that Li Hua was indeed appendicitis, and quickly arranged his operation. .

After the operation, Li Hua needs to be hospitalized for observation for a period of time. During this period of time, the opening of the platform on the blockchain enabled Han Meimei to check Li Hua's expenses and details online, as well as Li Hua's inspection process and inspection reports. Synchronize information with the hospital.
A few days later, Li Hua recovered and was discharged from the hospital. Since Han Meimei had reported to the hospital in advance to buy additional insurance for Li Hua, after completing the discharge procedures, Li Hua's hospitalization data was simultaneously transmitted to the relevant insurance company.

When receiving Han Meimei's report, the hospital had already synchronized Li Hua's basic information with the insurance company. Therefore, after the insurance company obtained Li Hua's hospitalization information, he quickly completed the reimbursement and payment procedures for him. On the second day after he was discharged from the hospital, Han Meimei's family received the remittance from the insurance company, which was very convenient and fast.
For Han Meimei's family, the application of blockchain technology in insurance and medical care is not only convenient and fast, but also its anonymity allows them to avoid worrying about information leakage. Moreover, the hidden clauses and cumbersome and ambushed insurance contracts in the insurance industry made them want to buy insurance but dare not buy it. Now, the openness of data on the blockchain not only reduces the cost of communication with the insurance industry, but also allows them to view the progress of the process on the chain, which is very open and transparent.

In fact, not only is it more user-friendly, but the data on the chain also benefits the insurance industry a lot. In addition to the open and transparent process reducing their labor costs and bringing more customers, in terms of insurance handling, due to the immutable nature of the data on the blockchain, the authenticity and credibility of the data are ensured, which is even more significant. It reduces their cost of verification and the risk of being cheated by customers.
After talking about this, do you have a clearer understanding of the past and present of the blockchain? Welcome to discuss.


