Smart contract pool
Publish: 2021-04-30 18:34:25
1. Smart contract & quot The term "smart contract" can be traced back to at least 1995 and was proposed by the prolific interdisciplinary legal scholar Nick Szabo. He mentioned the concept of smart contract in several articles published on his website. His definition is as follows:
& quot; A smart contract is a set of promises defined in digital form, including the agreements on which the contract participants can execute these promises& quot;
let's explore the meaning of his definition in more detail
commitment
a set of commitments refers to the (often mutual) rights and obligations agreed by contract participants. These commitments define the nature and purpose of the contract. Take a sales contract as a typical example. The seller promises to deliver the goods and the buyer promises to pay a reasonable price
digital form
digital form means that contracts have to be written into computer-readable code. This is necessary, because as long as the participants reach an agreement, the rights and obligations of smart contract establishment are executed by a computer or computer network
to further explain:
(1) when will the parties to the smart contract reach an agreement? The answer depends on the specific smart contract implementation. Generally speaking, the contract is discovered when the parties are committed to the execution of the contract by installing the contract on the contract host platform< (2) contract execution
& quot; Execute & quot; And the real meaning of it also depends on implementation. Generally speaking, implementation means active implementation through technical means
(3) computer readable code
in addition, the contract needs specific & quot; Digital form & quot; Very much depends on the agreement that the parties agree to use
protocol
protocol is technical implementation, on this basis, the contract commitment is realized, or the contract commitment is recorded. Which agreement to choose depends on many factors, the most important of which is the nature of the assets being traded ring the performance of the contract
take the sales contract as an example. Suppose that the participants agree to pay in bitcoin. The chosen protocol will obviously be bitcoin protocol, on which the smart contract will be implemented. Therefore, the contract must use & quot; Digital form & quot; It's bitcoin scripting language. Bitcoin scripting language is a non Turing complete, imperative, stack based programming language, similar to forth.
& quot; A smart contract is a set of promises defined in digital form, including the agreements on which the contract participants can execute these promises& quot;
let's explore the meaning of his definition in more detail
commitment
a set of commitments refers to the (often mutual) rights and obligations agreed by contract participants. These commitments define the nature and purpose of the contract. Take a sales contract as a typical example. The seller promises to deliver the goods and the buyer promises to pay a reasonable price
digital form
digital form means that contracts have to be written into computer-readable code. This is necessary, because as long as the participants reach an agreement, the rights and obligations of smart contract establishment are executed by a computer or computer network
to further explain:
(1) when will the parties to the smart contract reach an agreement? The answer depends on the specific smart contract implementation. Generally speaking, the contract is discovered when the parties are committed to the execution of the contract by installing the contract on the contract host platform< (2) contract execution
& quot; Execute & quot; And the real meaning of it also depends on implementation. Generally speaking, implementation means active implementation through technical means
(3) computer readable code
in addition, the contract needs specific & quot; Digital form & quot; Very much depends on the agreement that the parties agree to use
protocol
protocol is technical implementation, on this basis, the contract commitment is realized, or the contract commitment is recorded. Which agreement to choose depends on many factors, the most important of which is the nature of the assets being traded ring the performance of the contract
take the sales contract as an example. Suppose that the participants agree to pay in bitcoin. The chosen protocol will obviously be bitcoin protocol, on which the smart contract will be implemented. Therefore, the contract must use & quot; Digital form & quot; It's bitcoin scripting language. Bitcoin scripting language is a non Turing complete, imperative, stack based programming language, similar to forth.
2. The program running on the blockchain is usually called smart contract. So we usually change the name of writing blockchain program to writing smart contract
although bitcoin can also write smart contracts, the syntax supported by bitcoin is only related to transactions, and there are limited things it can do
therefore, when it comes to writing smart contracts, it usually refers to Ethereum blockchain that supports the execution of Turing complete programs.
although bitcoin can also write smart contracts, the syntax supported by bitcoin is only related to transactions, and there are limited things it can do
therefore, when it comes to writing smart contracts, it usually refers to Ethereum blockchain that supports the execution of Turing complete programs.
3. 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.
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.
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
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. Chongqing jinwowo analyzes the principle of smart contract under blockchain technology as follows:
the principle of smart contract is the link between points, which exists in the physical and digital space, in the real world and the virtual world. It may exist in a certain space, or in two different spaces, which have natural links and are distributed, There is no centralization
the principle of smart contract is the link between points, which exists in the physical and digital space, in the real world and the virtual world. It may exist in a certain space, or in two different spaces, which have natural links and are distributed, There is no centralization
6. Is smart contract used to explain blockchain
7. The global mine pool alliance is a global blockchain ecosystem that can dig the main currency of various public chains, and it is an epoch-making revolution in the mine pool instry. Version 1.0 will be launched on March 5, 2019, with built-in top exchanges in April, and global blockchain digital mall in June. Version 1.0 takes the lead in opening the OCC ore pool. Since April, bitcoin ore pool, Ethereum ore pool, IPFs ore pool, and ontology ore pool have been opened in turn. OCC is the main currency of Taiji chain. Taiji chain is a large public chain, so OCC is the fuel of the main chain. A total of 64 million pieces are issued by OCC, and 18 million pieces are pre excavated. The circulation is very small, and there is no private placement. At present, it is only used in many projects, with a wide range of applications and a bright future. The current functions of OCC are: 1; Payment function; OCC has launched several well-known exchanges, such as fulbit exchange, Daniu exchange and currency carat exchange, which can be traded freely. We can transfer to OCC for payment, and OCC is the payment currency for many projects. In particular, Taiji wallet and Taiji chain blockchain browser bring this kind of payment function to the extreme. We can transfer money to any account through point-to-point method, and it can be checked on the blockchain browser, which is not tampered with, traceable, and the whole network consensus. 2， OCC is the fuel. There are many smart contracts to run on the Taiji chain. For example, DAPP is a kind of smart contract, so it needs OCC, otherwise it cannot run; There are hundreds of tokens in the Taiji chain, and the transfer of these tokens also needs to have OCC, otherwise it is impossible to transfer. At present, there are a large number of entity application projects. We are looking for Taiji chain team to issue coins and apply them to the entity to promote the development of the entity. The demand of OCC is huge, but the quantity of OCC is quantitative. Just like bitcoin, the price is bound to rise all the way! 3， OCC is the currency that must be recharged by the blockchain game platform on the Taiji chain. This game platform will be connected to various game operators. They all need to use OCC. There are a lot of dapps on the Taiji wallet. Lele Dezhou is the blockchain game platform that must use OCC. It is the world's first game project on the poker chain, which is a fully intelligent contract, All gold coins and diamonds are based on smart contracts without any centralized operation. OCC will be your favorite. 4， The app of global mining pool alliance can be directly logged in through Taiji wallet, or downloaded and logged in separately. 5， Taiji chain is an open blockchain public chain with powerful block browser. It is a decentralized application community. Through the joint efforts of all of us, we will create a new and free Internet Ecology with decentralization.
8. A virtual currency has not been officially recognized
I hope it can help you. If your problem is solved, please click to adopt it, thank you
I hope it can help you. If your problem is solved, please click to adopt it, thank you
9. From Google's keyword search trend chart, we can see that smart contract is receiving more and more attention, so we need a clearer definition. At present, people's excitement about smart contract is accompanied by confusion about the meaning of the term
10. First, find the molten slurry, pour it on the water, and it will turn into a Blackstone. Dig 12 pieces and put them in the shape of a door. The height is 5 and the length is 4. Then use a flint to light the middle of the door, and the hell door will be finished (as shown in the figure below). A simple way to obtain Obsidian: you can synthesize it without diamonds. There is a method called pouring in the hell door, You can first use some materials that will not be burned by magma (stone, soil, etc.) to build a groove, pour the magma source (the magma flow meets with water and turns into rock), and then pour the water, the magma source becomes obsidian, and it's in the position you want, so you don't need to dig.
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