How long does a blockchain smart contract take

1. 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.

2. 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

3. Depending on your basic level, if you have a certain technical foundation for development, it is relatively easy to learn
"chainman College" offers short weekend technical training courses for colleges with a certain programming foundation. You can investigate them and ask about your situation.

4. It mainly depends on the personal foundation. It's less than three months fast.

5. Shanghai Heshu Software Co., Ltd. is a professional blockchain technology service provider in China. The smart contract seems to be a script that can be executed accurately. It can also be realized with traditional technology. Why must we use blockchain technology? Personal understanding of blockchain has two characteristics: 1. Data can not be modified or deleted, but can only be viewed and added; 2. Decentralization.

6. The transaction type is nuccerh,
please ask the customer service of the bank for details
run, brother,
good luck.

7. In short, a group digs bitcoin on the computer, which is equivalent to a big mine.

8. The process of "automatic execution of smart contract built by blockchain" includes the following steps:
(1) smart contract will check the state of automata regularly and traverse the state machine, transaction and trigger condition contained in each contract one by one; The transactions that meet the conditions are pushed to the queue to be verified, waiting for consensus; Transactions that do not meet the trigger conditions will continue to be stored on the blockchain
(2) the transactions entering the latest round of verification will spread to each verification node. Like ordinary blockchain transactions or transactions, the verification node first performs signature verification to ensure the validity of the transaction; The transactions that pass the verification will enter the set to be agreed. After most verification nodes reach a consensus, the transaction will be successfully executed and the user will be notified
(3) after the transaction is successfully executed, the state opportunity of the smart contract determines the state of the contract. When all the transactions included in the contract are executed in sequence, the state opportunity marks the state of the contract as complete and removes the contract from the latest block; On the contrary, it will be marked as in progress and continue to save in the latest block until the next round of processing is completed; The whole transaction and state processing is automatically completed by the built-in intelligent contract system at the bottom of the blockchain, which is transparent and unchangeable.

9. Theoretical knowledge must be learned first. I think it is necessary to read the etc white paper to better understand what its original intention is to do.