Blockchain storage and cloud storage

1. In short, the data of the blockchain is formally stored in the blockchain through the formula algorithm process of the block. All nodes in the whole network express that they accept the block, and the way to express acceptance is to make the random hash value of the block the latest block hash value. Xingqun manufacturing will be extended based on the blockchain.

2. How to store information on the blockchain: call the API provided by the blockchain platform

generally, the blockchain platform will provide corresponding interfaces, such as RPC, json-rpc, HTTP, etc. of course, the platforms are not the same, and the degree of friendliness is different

some companies specializing in API, such as blockcypher, can provide friendly calling interfaces, and it is not very convenient to write answers on the mobile phone, Search below

as for the storage content, add a point: in addition to the conventional cloud storage, file entities on the file hash record chain also have blockchain based storage schemes, such as IPFs, storej and so on

3. Cloud computing storage can be used as the lower layer of blockchain. Cloud computing or cloud storage is infrastructure, which can be understood as a new generation of computer (or hard disk), while blockchain can be seen as a business oriented accounting system (or a trusted database) that can be built based on Cloud Computing (cloud storage).

4. Cloud computing is usually defined as providing dynamic, scalable and often virtualized resources through the Internet, but it is often a centralized organization that provides cloud computing platform. The network composed of blockchain generally has no specific organization, so blockchain is closer to the definition of distributed computing system and belongs to a kind of distributed computing. However, blockchain is able to realize cloud storage. Unlike the centralized cloud storage, blockchain has some cloud storage solutions that are decentralized.

5. One is that each node of the blockchain stores complete data according to the block chain structure. Traditional distributed storage generally divides the data into multiple copies according to certain rules
Second, the storage of each node in the blockchain is independent and has the same status, which relies on the consensus mechanism to ensure the consistency of storage, while the traditional distributed storage generally synchronizes data from the central node to other backup nodes
data nodes can be different physical machines or different instances in the cloud
the above is the difference between the blockchain technology of jinwowo network analysis and the traditional distributed storage, for reference.

6. In modern free economic society, the price of any commodity or its equivalent (currency) changes because of the demand for it: the demand is greater than the supply, and the price rises; If the demand is less than the supply, the price will fall. Although bitcoin is a virtual currency, it also has the characteristics of currency, and its price also changes with the demand.

7. 1 Dong = 0.0003578 yuan
2000 Dong = 0.7156 yuan is 70 cents

8. It can be
e-dinar internal market allows P2P transactions without commission and foreign exchange restrictions, and digital gold currency e-dinar supports any means of payment in the market< br /> http://pinpai.szonline.net/pp0615/20160615/567354.html?__ r=138

9. This depends on the type you like, the so-called radish vegetables have their own love; Play both and you'll know. I would like to take risks and mine

10.

bus line 1: Shilong No.1 → suiguan No.2 → guangzeng No.5 → Metro Line 4 → Metro Line 8, the whole journey is about 76.0km

1. Walk about 220m from Dongguan railway station to Dongguan railway station [Shilong side bus station] station

2. Take Shilong No.1, pass 5 stations to Shatoujiao station

3. Walk about 260m to Shijie tianyating station

4 Take suiguan No.2 Road, pass 15 stops to Shitan bus station

5, walk about 30 meters to Shitan bus station

6, take guangzeng line 5, pass 11 stops to Huangcun interchange station

7, walk about 330 meters to Huangcun station

8, take Metro Line 4, pass 3 stops to Wanshengwei station

9, take Metro Line 8, pass 1 stop to Pazhou station

10, walk about 230 meters, Arrive at Poly World Trade Expo Hall

bus line 2: Metro Line 2 → 829 → suiguan Road 2 → guangzeng line 5 → Metro Line 4 → Metro Line 8, the whole journey is about 79.7 km

1. Take Metro Line 2 from Dongguan railway station, pass through 2 stations, and then reach Liuhua Park Station

2. Walk about 240 meters to reach Liuhua metro station

3 Take no.829 bus, pass 7 stops, reach Shijie huangsiwei station

4, walk about 30 meters, reach huangsiwei station

5, take No.2 suiguan bus, pass 13 stops, reach Shitan bus station

6, walk about 30 meters, reach Shitan bus station

7, take guangzeng line 5, pass 11 stops, reach Huangcun interchange station

8, walk about 330 meters, reach Huangcun station

9, take Metro Line 4, pass 3 stops, Arrive at Wanshengwei station

10, take Metro Line 8, pass 1 station, arrive at Pazhou station

11, walk about 230 meters to poly World Trade Expo