What are the public welfare challenges of blockchain

1. According to the analysis of jinwowo group, the problems faced by the smart contract based on blockchain are as follows:
1-security problem: one of the key problems is security and trust. The smart contract system is designed to be an environment without trust, which means that the mistakes can not be corrected
2 - Privacy: one of the challenges of effective use of blockchain is to provide thorough transparency
3 - unexpected scenario problem: smart contract sounds very good, but how to correctly and appropriately handle the contract execution in unexpected scenarios is a problem.

2. At present, the current situation of blockchain technology development in China is that there are more patents, less paper code, no independent security controllable underlying platform, and no integrated platform of software and hardware, which will directly lead to the technical risk of blockchain core technology being controlled by others, the financial risk of foreign open source platforms seizing the financial market, and the economic risk of foreign open source platforms penetrating China's real and virtual economy. Therefore, it is very important to realize the landing of blockchain application as soon as possible. Now there are landing applications all over the country under the support of policies. Changsha high tech Zone has officially launched a blockchain project, which is called SMIC blockchain service platform. It is a government enterprise service platform, cooperating with Bank of Changsha and Dean justice, and now it is the stage of collecting enterprises to join the chain.

3. Try changing a computer, a USB interface, and a data cable.
I know so much. I hope I can help you. If I can't, I can only try changing an MP3

4. Tencent is the first to lead the blockchain in security, recording the whole process of donation material demand, supply, transportation and many other links on the chain for certificate storage, ensuring safety and compliance, and supporting the 100 million level business data on the chain efficiently.

5. Maybe, if you dig up krypton gold again and again, you'll make a lot of money. It's usually less than 100 grams an hour.

6. The mines in Outland should be the most valuable, but it's hard to mine, and the mines in pandaliya are also good
under the ideal situation of big bird mount + no one grabs the mines with you + opposing camp doesn't kill you + familiar with the mines, more than 1000g per hour
under normal circumstances, e to various interference factors, 500g per hour is good, minus 200g per hour, the actual income is 300g per hour, If you are engaged in manual mining, you should also consider the fatigue factor. The more mining, the lower the efficiency. It is not recommended to use this lowest level method of earning money. Just like the wage earners in big cities, they can barely earn a living (point card money), but they have no future

7. Initial cloud coin, referred to as ECC, is on the eve of the outbreak of blockchain economy. It is first applied in finance, advertising, games, various life applications and other fields. It has become the representative virtual currency in the era of blockchain 3 and 0. Media chain 3 and 0 technology has the core characteristics of more security, more efficiency, more flexibility and more openness. With the wide application of its technology, it has become the core technology of blockchain 3 and 0, It will certainly lead to new forms and new ideas in the global media, and create convenient services and new ideas, which marks a new economic era unfolding in front of the public.

8. Directly on Tencent security to lead the blockchain, safe and guaranteed, so that more users get stability and rest assured

9. The data stored on the blockchain is reliable and tamperable, which is naturally suitable for social public welfare scenarios. The relevant information in the public welfare process, such as donation project, collection details, fund flow, recipient feedback, etc., can be stored on the blockchain, and can be made transparent and public, which is convenient for social supervision.