Smart contract blockchain transfer

1.

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"

2. Smart contract can be simply understood as a piece of code written on the blockchain, which is event driven, has dynamic state, obtains multi-party recognition, and can automatically process the information on the chain according to the preset conditions. Once an event triggers the terms in the contract, the code will be executed automatically. The biggest advantage of smart contract is to use program algorithm to replace human arbitration and contract execution
smart contract is a contract that uses computer language instead of legal language to record terms. Once it is written, it can be trusted by users. The terms of the contract cannot be changed, so the contract cannot be changed. If the procere meets the conditions, it will be carried out, and there is no human interference to ensure absolute fairness
three technical features of smart contract
● data transparency
all data on the blockchain are open and transparent, so the data processing of smart contract is also open and transparent, and any party can view its code and data at runtime
● can't tamper
all data of the blockchain itself can't be tampered, so the code of the smart contract deployed on the blockchain and the data generated by the operation can't be tampered, and the node running the smart contract doesn't have to worry about malicious modification of the code and data by other nodes
● permanent operation
the number of nodes supporting the blockchain network often reaches hundreds or even thousands. The failure of some nodes will not lead to the stop of the smart contract, and its reliability is close to permanent operation in theory, which ensures that the smart contract can be as effective as the paper contract at all times.

3. With the breakthrough of blockchain technology, the smart contract has a chance of rebirth. The smart contract based on blockchain technology can not only give play to the advantages of smart contract in cost efficiency, but also avoid the interference of malicious behavior on the normal execution of the contract. The smart contract is written into the blockchain in digital form, and the characteristics of blockchain technology ensure that the whole process of storage, reading and execution is transparent, traceable and unchangeable; At the same time, the strong security consensus mechanism does not need the intervention of three parties: a set of state machine system is constructed by the consensus algorithm of the blockchain, so that the intelligent contract can run efficiently.

4. Chongqing jinwowo analyzes the role of smart contract in blockchain technology as follows:
three characteristics of smart contract in blockchain can be summed up:
1) decentralization. It doesn't rely on the centralized server and runs automatically through the network nodes
2) good trust mechanism. The crisis of trust is greatly reced, and it is not necessary to consider whether the participation is trustworthy
3) high degree of autonomy. Once the condition is triggered, the contract will be executed automatically without interference

5. From a technical point of view, smart contracts are considered to be network servers, but these servers are not set up on the Internet using IP addresses, but on the blockchain (chain Nova). So that you can run specific contract programs on it. But unlike web servers, smart contracts can be seen by everyone, because the code and state of these smart contracts are on the blockchain (assuming that the blockchain is public). Moreover, unlike web servers, smart contracts do not rely on a specific hardware device. In fact, the code of smart contracts is executed by all devices involved in mining (this also means that the computing power to enter a single contract is limited, although the automatic adjustment of mining difficulty will adjust this effect). Smart contract is an assembly language programmed on blockchain. Usually people don't write stanza code by themselves, but they compile it from a higher-level language, such as solid, a special language similar to JavaScript. These bytecodes do provide guidance for the functionality of the blockchain, so the code can easily interact with it, such as transferring cryptography currency and recording events. The execution of the code is automatic: either it is successfully executed, or all state changes are revoked (including the information that has been sent or received from the current failed contract) This is very important because it avoids partial execution of the contract.

6. 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.

7. General banks can exchange, but limited to Monday to Friday, I suggest you can go to Bank of China and Bank of communications, especially Bank of China, this business is very perfect, you can also use RMB to exchange US dollars in the future.

8. Take the Feiluo supply chain of fun chain technology as an example. It brings together suppliers (financing demanders), core enterprises, funders, third-party organizations and other participants, covering accounts receivable, credit insurance, asset securitization, digital warehouse receipt, logistics supply chain, green energy and other scene services. It digitizes accounts receivable, digital warehouse receipt and other assets through credit insurance It can build a bridge for the high-quality asset side and the capital side to solve the financing problems of small and medium-sized enterprises.