ICBC's twelve zodiac blockchain

1.

Suppose you understand the blockchain. To put it simply, the blockchain generates a new block every ten minutes to store all the transaction information in the blockchain. This block is equivalent to a network account book, which correctly time stamps all the transactions of the whole network in the past ten minutes. The question is who will build it? The "miner" on the blockchain is to compete for the bookkeeping right of a block in the past ten minutes. The rule of competition is to solve the sha256 problem while correctly bookkeeping. Who can prove that his computer has the fastest computing power can compete for the legal bookkeeping right of the block in the past ten minutes. This is the "mining" process. In the bitcoin blockchain, miners who dig mines can get certain bitcoin rewards. Therefore, miner's more essential function is "bookkeeper"

in his bitcoin white paper, Nakamoto describes in detail the process of establishing the credit system:

Step 1: in order to make the whole network recognize effective, every transaction must be broadcast to each node (node: miner)

Step 2: each miner node should correctly stamp each transaction in the ten minutes and record it in that block

Step 3: each miner node should compete for the legal bookkeeping right of this 10 minute block by solving the sha256 problem, and strive for the reward of 25 bitcoins (50 bitcoins every 10 minutes in the first four years, decreasing by half every four years)

Step 4: if a miner node solves the ten minute sha256 problem, TA will publish all the time stamped transactions recorded in the ten minute block of TA to the whole network, which will be checked by other miner nodes in the whole network

Step 5: other miners in the whole network check the correctness of the block's accounting (because they are also stamping the time stamp for accounting, but they do not compete for the legal block's accounting right, so there is no reward). If there is no error, they will compete for the next block after the legal block, thus forming a single block chain of legal accounting, That is the general ledger of bitcoin payment system - blockchain

generally speaking, each transaction must go through six block confirmations, that is, six ten minute bookkeeping, before it can be recognized as a legal transaction on the blockchain. The following is the accounting format of bitcoin:

so the so-called "bitcoin" is such a billing system: it includes the owner using the private key to make an electronic signature and pay to the next owner, and then the "miners" of the whole network stamp the account to form a blockchain Network)

if you want to learn more about blockchain information, it is recommended that you use Baijia, mustard circle and other popular B circle media. The amount and richness of information are more and better than those on the general network. If you want to ask technical questions, you can take a look at the links below, hoping to help you with the

Web links

2. Hello, as far as I know, the people's Bank of China does not issue pure gold commemorative coins of the zodiac. The Wen Xin should be made and issued by the instrial and Commercial Bank of China. In fact, this is not a commemorative coin, which is used by the bank to make money. If you collect commemorative coins, it is better to use the legal currency issued by the people's Bank of China.

3. There is no collection value. Everything that has collection should be issued by authoritative departments. For example, if the people's Bank of China, China Post and other units and indivials are not authoritative enough, there will be no collection value. Especially advertising in newspapers and TV.

4. ICBC Zodiac credit card is divided into 12 faces according to zodiac signs. The card is UnionPay single identification single currency card, and the card grade is gold card. You can enjoy the following benefits and services: 1; 2. Binding cloud flash payment transaction has the opportunity to enjoy the first order free of charge. The free bill amount is refunded according to the actual consumption amount, with the upper limit of 50 yuan; 3. Through "UnionPay payment" to purchase train tickets on the 12306 platform, you can enjoy a random discount of up to 20 yuan, first come first served; 4. Before December 31, 2019, new customers who successfully apply for the card for the first time will be put into use within 30 days, and they will have a consumption of over 66 yuan within 30 days after the card is put into use. They can receive prizes through "new people zone - love to buy new gifts" of ICBC e-life app
log in to ICBC mobile banking, select the "favorite" section, and click "credit card - apply for card" to apply for the card immediately

(answer time: June 10, 2019, in case of business change, please refer to the actual situation.)

5. There is no information about the circulation. The selling price can be adjusted according to the market situation. Please refer to the price at the time of transaction. You can inquire about the price of the procts on sale through ICBC sales outlets, open personal website "brand precious metal purchase" page or "ICBC jinxingjia flagship store" in Ronge shopping mall

(answer time: July 10, 2019, in case of business change, please take the actual situation as the criterion.)

6. Hello, the answer is monkey. Because of its shrewdness and diligence, monkey people always win. Monkey people's insatiable psychology is in direct proportion to their talent. Monkey people feel full and want to try everything. Because the monkey people can be careful, they never see any waste of time at work. Monkey people can deal with complicated problems calmly. Monkey people are also enterprising people who recognize people as teachers. Monkey people master a lot of knowledge in the world. No matter what occupation they choose, they will be able to achieve great success in the future, especially the ability to become linguists. Monkeys have no strong competitors in their lives. People born in the year of monkey are naturally versatile, and they will become excellent actors, writers, diplomats, lawyers, athletes, stockbrokers, teachers, etc. Monkey people are excellent social activists and can communicate with anyone. If monkey people cheat others, others will not know how they are cheated
I hope my answer can help you

7. It can be repaid through ICBC counters, Internet banking, Alipay and other channels.

8. The first batch: from January 17, 2020 to January 20, 2020; The second batch: from February 21, 2020 to February 24, 2020
warm tips:
1. At present, the appointment period has ended. If you have successfully made an appointment and passed the verification, please bring your valid ID card to the appointment site for exchange on the agreed exchange date
2. All branches of the Bank of Shanghai can handle the exchange ring the scheled exchange period The above contents will be answered by ICBC intelligent customer service "gongxiao" on January 17, 2020. In case of business change, please refer to the actual situation.)

9. Instrial and Commercial Bank of China launched a set of commemorative silver medallions of the Chinese zodiac. The material is silver and the specification is 20g × 12 pieces (color, natural color), unlimited. Press, single side color printing process, proced by Shanghai Mint. Zodiac commemorative silver medallion set has been listed in October 2011 and is available for sale in ICBC branch. The reference price is 13.5 yuan / g, and the total price of the whole set is 3240 yuan.

10. Yes, buy back only depends on the purity and weight, not on the process