Combination of arrival job and blockchain Technology
blockchain refers to the technical solution of collective maintenance of a reliable database through centralization and distrust in the past, and it is a technical way for the whole people to participate in bookkeeping. Previous bookkeeping methods were all centralized and needed centralized intermediary, whether it was traditional government, financial institutions, notarization institutions or emerging e-commerce platform and online payment platform
in economic hypothesis, information is sufficient. In fact, it is precisely because of insufficient information that there are very large intermediaries. The existence of intermediaries increases the transaction cost and raises the transaction threshold. In essence, blockchain technology is a large-scale collaboration tool. It makes direct value transfer possible by using pure technology for the first time, and continues the trend of Internet decentralization and disintermediation. Disintermediated blockchain technology will greatly subvert the information intermediary instry
blockchain technology is the basic technology for building bitcoin data structure and encrypted transmission of transaction information, which realizes the issue and transaction of bitcoin. The core of blockchain technology is that all the current participating nodes jointly maintain the transaction and database, so that the transaction is based on the principle of cryptography rather than trust, so that any agreed parties can directly carry out payment transactions without the participation of a third party
technically, a block is a data structure for recording transactions, reflecting the capital flow of a transaction. In the system, the transaction blocks are connected to form a main chain, and all the nodes participating in the calculation record the main chain or part of the main chain
a block contains the following three parts: transaction information, hash formed by the previous block and random number. Transaction information is the task data carried by the block, including the private keys of both parties, the number of transactions, the digital signature of electronic currency, etc; The hash hash formed by the previous block is used to connect the blocks and realize the sequence of past transactions; Random number is the core of the transaction. All nodes compete to calculate the answer of the random number. The node that gets the answer the fastest generates a new block and broadcasts it to all nodes for updating, so as to complete a transaction.
1. Blockchain is a distributed database (system) placed in a non secure environment
2. The blockchain uses cryptography to ensure that the existing data cannot be tampered with
3, the blockchain uses consensus algorithm to reach consensus on new data
the system with the above three properties is blockchain.
all of the above are potential application fields of blockchain technology, but if the first large-scale application field of blockchain technology, I think it will be in the fields of insurance and health care
because the current data in these two fields are very scattered and chaotic, they can be integrated systematically through blockchain technology. In the future, a lot of business opportunities can be found after specific analysis of these data
some excellent digital currencies have begun to appear in China, such as Puyin, a tea standard digital currency launched by Puyin group. Puyin is a high-quality Tibetan tea asset that is stored, identified, evaluated and authorized by three parties, and a standard digital currency that is issued through encryption and digitization.
In recent years, the impact of black technology AI can be described as wave after wave. From dark blue to alphago, people have repeatedly exclaimed at the subtlety of technology and the powerful learning ability of AI
so how will AI combine with blockchain, and what breakthroughs and innovations will it bring
let's look at the evolution of blockchain. From blockchain 1.0 marked by BTC to blockchain 2.0 marked by Ethereum and combined with "smart contract", to blockchain 3.0 marked by EOS with stronger expansibility
as far as BTC is concerned, its function is single. For users, it is nothing more than mining and transfer. So we have an upgraded eth
eth provides a development platform for users to write smart contract publishing applications, but its performance is insufficient and the handling fee is expensive. This is bm's EOS
one of the main reasons why EOS can get people's attention quickly is that it has stronger scalability than Ethereum. It's stable and secure, but "super node power leads to insufficient decentralization" is no more decentralized than eth. In other words, in order to achieve fast enough data processing, it makes a compromise on the degree of decentralization. Then Velas appeared
based on the characteristics of EOS, Velas uses AI to enhance and realize decentralization. By introcing AI (Artificial Intelligence) into the blockchain technology, it solves the disadvantages brought by the rule of man, and automatically adjusts the system through AI to proce the best results without affecting the processing standards of the system, thus recing the cost of consensus
"AI is technological innovation, blockchain is institutional innovation"
cough, this property should be similar to body color
you will ask: after gambling? How to deal with a lot of guessing coins
I would say: maybe there will be some useful official notice in the future, such as activities ring the world cup
[reward method]
after the world cup, the top 9 users in the quiz list can get the reward from the post bar. At the same time, in addition to the top 9 netizens, we will randomly select 20 bar friends from the top 100 bar friends in the ranking to give out lucky prizes. Come and join us<
[award setting]
one first prize, three second prizes for Sony dsc-tx7c digital camera, five third prizes for iPod new shuffle 4G MP3, 20 lucky prizes for Internet travel storage bags, Logitech M215 wireless mouse, and the support for the event The final right of interpretation of this activity belongs to aitieba, and network employees are not allowed to participate in the activity to receive awards.