How to generate blockchain

1. In many cases of blockchain commercial application, we can always see the word baas. Baas is the abbreviation of blockchain as a service, which is translated into "blockchain as a service" in Chinese. So what is blockchain as a service baas? With this question, we will follow Xiao Wang of Renren blockchain technology team to discuss it carefully
according to Xiao Wang, the concept of blockchain as a service (baas) is mainly proposed by Microsoft and IBM. To put it bluntly, it is actually a new type of cloud service, a cloud service combined with blockchain technology. For example, Microsoft's azure cloud computing platform and IBM's bluemix garage cloud platform all provide blockchain as a service baas
blockchain as a service (baas) is a space created by enterprises such as Microsoft and IBM from their own cloud service network to run a blockchain node. Compared with ordinary nodes and exchange nodes, the main purpose of baas nodes is to quickly establish the development environment they need, and provide a series of operation services based on blockchain, such as search query, transaction submission, data analysis, etc. these services can be centralized or decentralized to help developers verify their concepts and models faster. The service of baas node is reflected in: it is more instrumental and easy to create, deploy, run and monitor blockchain.

2. The application of blockchain is token. It can be said that digital currency can make money, but it varies from person to person. Digital currency is an investment proct in China, and there is a great risk. In the digital money market, there are some people who make money, but there are also many people who lose money. Those who lose money eventually cut the flesh and leave the market. Those who make money at the beginning also slowly cut the flesh and leave the market, especially those who invest in marketing money.

3. How can blockchain be connected in sequence
blockchain is composed of a series of blocks generated by cryptographic algorithm. Each block is filled with transaction records, and the blocks are connected in sequence to form a chain structure, which is the blockchain ledger
taking bitcoin as an example, when miners generate new blocks, they need to calculate the new hash value and random number according to the hash value of the previous block, the new transaction block and the random number. In other words, each block is generated on the basis of the previous block data, which ensures the uniqueness of the blockchain data
because subtle changes in transaction records will completely change the result of hash value, miners can't cheat when competing for computing power. Each miner must wait until the previous block is generated before starting to calculate the qualified random number according to the data of the previous block, which ensures the fairness of mining.

4. Once the blockchain video is on the chain, it cannot be changed. If it is invalid after being changed, the video on Baopin can not be deleted once it is on the chain

5. The origin of blockchain comes from "bitcoin: a peer-to-peer e-cash system" published by Nakamoto in 2008. According to this concept, the first proct "bitcoin" was born. The origin of blockchain technology is usually attributed only to the actions of some mysterious geniuses who work under the pseudonym of Nakamoto. This view of history often makes the technology seem almost magical and difficult to understand. When people understand the actual history behind the development of these systems, it is more fundamental. In this section, I will outline the most important topics in decades of research on consensus algorithms and distributed systems that led to the creation of blockchains.

6. In recent years, more and more people travel abroad. A good credit card can add a lot to your journey. Everbright Bank is in love with the rhythm of tourism, and has launched a variety of tourism rights cards. Take this Everbright Caesar tourism platinum card as an example. There are many preferential rights and interests. The card and the first brush gift are very generous. Is it really that amazing? Follow Xiaobian to find out
Everbright Caesar travel white card gift
time: before June 30, 2018
Object: Everbright Caesar joint platinum MasterCard customers
ring the activity, customers who activate their credit cards and brush Everbright Caesar joint platinum MasterCard for the first time can enjoy 16 days of free overseas WiFi rights
you need to send self recording videos overseas, so you don't have to worry about non flow money anymore! It should be noted that each customer can only enjoy the right once a month, and only the top 300 customers can enjoy the right once a month
Everbright Caesar travel white card gift
event time: before June 30, 2018
event object: Everbright Caesar joint platinum card MasterCard customer
as long as Everbright Caesar joint platinum card MasterCard customer, ring the event period, the first brush and single currency transaction over $500 or more, you can get the value of 500 yuan of Jingdong e card rights
at the end of the next month after card consumption, the equity password of JD e card will be sent to your mobile phone in the form of SMS, regardless of name, no loss reporting, no cash exchange, and need to be kept properly
here is an introction to the opening ceremony and the first brush ceremony of Everbright Kaiser travel white. Of course, there are a lot of exclusive activities and services, such as Jingdong Mall's card consumption of 300 minus 100, the one-way airport shuttle service of 2 times / year, etc
recently, China Everbright Bank and Caesar tourism released their first joint brand card "Everbright Bank Caesar tourism platinum joint brand credit card" in Beijing. It is reported that the card is the highest level tourism exclusive card launched by both sides and is expected to cover millions of middle-class people in China
the Everbright Bank Kaiser Travel Co branded card launched this time is a platinum grade credit card, which is divided into UnionPay card and MasterCard. The design elements are mainly Aurora, and the design concept comes from "the world shines for me" - boundless dream. As long as you dare to pursue and set out, the world will shine for you
in addition to the basic rights and interests of Everbright, UnionPay and MasterCard platinum cards, the co branded card can also enjoy more exclusive rights and interests. For example, if a new user activates free international WiFi for 16 days, he or she can get the first swipe gift (if he or she swipes the card for more than $500, he or she will get the benefit of Jingdong e-card of $500). He or she can also enjoy airport shuttle, airport VIP hall, air delay insurance, travel accident insurance, road rescue, etc
What's more attractive is that cardholders can enjoy 5 times of points by consuming the whole line of Caesar procts, and they can grab 300 yuan of Caesar travel limited exclusive travel voucher by 1 yuan; Designated overseas cooperative merchants can enjoy 88% discount for consumption by card and customized tourism procts; You can also enter the aurora card zone of Caesar's official website and app as a privilege to purchase the specified preferential routes covering 100 countries and regions around the world, and over 10000 kinds of wonderful tourism procts will be put into the aurora card zone
Liu Yuxiao, general manager of Credit Card Center of China Everbright Bank, said: "this cooperation has effectively integrated the high-quality resources of both sides, and will provide cardholders with better daily travel services and the most convenient payment experience. This is an important step taken by Everbright credit card and Kaiser tourism in improving the quality and efficiency of serving the real economy, supporting the development of Inclusive Finance, and boosting the expansion of domestic demand. ".

7. Let me give you some advice. The application of enterprise on the chain means that most of the business activities of the enterprise and most of the service and management functions of Zhengfu are carried out efficiently on the chain. It is suggested to pay attention to the "SMIC blockchain service platform" for real-time information understanding

8. It is commonly known as "neighborhood committee", which can be handled by "social workers" or community centers.

9. Luoyang City
Dongfang Weiming (named casually) rushed to Luoyang City. After witnessing Jiang Tianxiong, the great Xia of Heluo, catching the thief at the entrance of the city, he rushed into the city and saw the statue of xiaoxiami in the middle of the city. Looking at the young faces on the statue, I can't help feeling that I must be famous. At this time, a man on the side said to himself that he admired xiaoxiami very much. After talking with him, he learned that his name was Gu Yuexuan. As if they were old friends at first sight, they went to the teahouse on the side to have tea. During the dinner, they met Wulin again; Bai Xiaosheng & quot; Xu Ziyi, the author of the book "Wulin Tongjian", records all the famous figures, ranking and major events in the Wulin. Gu Yuexuan's deeds are also among them. It turns out that he is the eldest disciple of Xiaoyao Valley flawless son. After half a cup of tea, Gu Yuexuan leaves in advance. They agree to meet on the first floor of the hotel to continue drinking and talking< 1. Dialogue with Xu Ziyi; Brother Xu seems to like tea very much;, Tea ceremony skills increased
2. When they enter the Baima temple, they see a quarrel, and then a sound of Qin makes them turn the fight into friendship, and go to the top to talk with the girl who plays the Qin, which increases their musical skills
3. The understanding of dialogue with the spiritual Zen master in front of the Mahatma hall increases
4. Play a guessing game with the little girl who kicks shuttlecock in the White Horse Temple (the answers to the four groups of questions are all in the order of 1, 2, 3 and 4), and the savvy increases after winning
5. In the room beside the hotel, you will meet a Ren who has lost his sandalwood chess, and then go to the boxing arena of yequanmen to catch a thief (talk to him when he reaches for his hand), eye skill + 12. Then return the sandalwood chess to a Ren and get the secret in the orange. Talk to him again and choose & quot; Abandon one's son and strive to be the first;, Chess skills increased
6. In the corner of the casino, you will see the lost Hunter Li San, who promised to help him get 50 yuan, and then win 300 yuan. After meeting him in the village outside the city, he will present a yellow birch bow and 200 arrows, and play hunting games. It's better to hit the bear and keep it for sale
7. Communicate with florists in villages outside the city, and their flower skills are increased
8. You can buy Jimo old wine in Luoyang tavern, and then give it to fishermen in villages outside the city to increase their fishing skills
9. You can meet Li Hui, a scholar, in a room in front of the village outside the city, and come to meet him in the afternoon, which increases your calligraphy skills. A list of couplets:
a little dew on a branch of grass / a piece of sky on a person
persuading people to talk for a while / persuading people to write for a hundred generations
a father and son three CI guest / four masters of eternal articles
a grain of rice hidden in the world / half pot cooking the universe
a pair of cold eyes watching the world / full of blood to reward a confidant
three dilapidated houses / a person who has been trained for a long time
the world is full of knowledge / person Emotional mastery is an article
you should be chivalrous in making friends / you should be a little simple in life
a long-standing article double tube pen / a poem of four seasons elegance
if the sky is affectionate, the sky is old / the moon is not hateful, and the moon is always round
then you go to the center of the city and get songfengting poems from the calligraphers and painters, and then go back to Li Wei to see them. Calligraphy skills are increased
10. You can play & quot; after having a conversation with the leader of yequanmen; Stone, scissors, cloth & quot; After winning the game, eye skill increases
11. The painting skills of dialogue with the white scholars in the middle of the city have increased
12. Talking with the owner of huichuntang drugstore, medical skills increased
13. The ability to talk with the owners of antique shops has been increased
14. When shopping in grocery stores, candle shops, drugstores, markets and other places, identification skills will increase
15. The size of gambling in casinos. Sometimes, if you win, you will gain more. The bet is 50 money once
16. From villages outside the city to the East, you can hunt, mine, collect medicine and fish in the forest. Hunting will improve your hunting and lightness skills, fishing will improve your fishing and soft skills, collecting medicine will improve your medical skills, and mining will improve your blacksmith skills, eye skills and hard skills (not every time). Players should do as much as possible to make more money
17. Eating in markets, pubs, inns and teahouses can supplement physical strength and improve tea ceremony and drinking skills, but it costs money. If you drink all the tea twice in a row in a teahouse, Xu Ziyi will give you a tea set: yulanhua six petal teapot
18. Before Shenshi, buy two sticks of incense and sell everything except Vajra Sutra. Then go to Baima temple to worship Buddha. Choose 1 luck + 80, 2 indexes + 20, 3 courage + 80, 4 savvy + 20. Recommendation 2
19. Talk to your mother-in-law in the house opposite the rejuvenation hall, and then go to the central government for a drink of soy milk. Then you will go back and your mother-in-law will ask you to take & quot; Nutritious Chicken Soup & quot; To Xiao, bring to the moral increase, and then promise Xiao to Luoyang Inn two kitchen order dishes, see two cabinet, give him Huangjing (collect medicine) cooking skills increase. Don't forget to reply to Xiao
20. Meet the cook's mother-in-law in the kitchen of the tavern, and then catch her a rainbow carp to learn how to fry Yellow River carp in wine
21. In Baima temple, talk to the children skipping rope, then go to Luoyang Inn for dinner, then go to the kitchen to talk to the chef and choose & quot; Praise cooking;, If you learn to cook chicken at Daokou, your cooking skills will increase
22. Go to the cave in the forest outside the city and talk with the miners to get a shovel, which increases the mining skills
23. If you sell five rainbow carp to Aunt Yutan at one time, you can get ten red worms
24. In the near future, the scholar in white went to the antique shop again, and his identification skills increased
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10. Jinwowo network analysis believes that: blockchain technology redefines the generation mode of credit in the network: in the system, participants do not need to know the background information of other people, nor do they need to rely on the guarantee or guarantee of a third party organization. Blockchain technology ensures that the system records, transmits and stores the activities of value transfer, and the final result must be credible.