{"id":30943,"date":"2022-03-08T00:15:44","date_gmt":"2022-03-08T04:15:44","guid":{"rendered":"https:\/\/101blockchains.com\/?p=30943"},"modified":"2023-07-28T02:54:35","modified_gmt":"2023-07-28T06:54:35","slug":"chainlink","status":"publish","type":"post","link":"https:\/\/101blockchains.com\/chainlink\/","title":{"rendered":"What is Chainlink & How Does it Work?"},"content":{"rendered":"

Cryptocurrency<\/a> and blockchain technology<\/a> has come from the dark shadows of uncertainty into the view of a mainstream audience. The evolution of new types of crypto assets and continuous developments in the crypto space, such as DeFi<\/a> and NFT<\/a>, has strengthened the reputation of crypto. On the other hand, the name of <\/span>Chainlink has also become a common entry as one of the key components for blockchain applications<\/a>.\u00a0<\/span><\/p>\n

The decentralized oracle network has gaiblockchainned prominent attention in recent times, drawing every beginner towards its special highlights. The following discussion helps you learn about the different <\/span>Chainlink uses and applications in the real world with insights on its fundamentals. You can develop a clear impression of the fundamental reasons for coming up with such a platform.\u00a0<\/span><\/p>\n

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The Potential of Blockchain and Smart Contracts<\/b><\/h2>\n

Blockchains and smart contracts<\/a> changed the face of information transfer, financial transactions, and execution of agreements forever. You might be wondering why you are looking at the value of blockchain and smart contracts in a discussion about <\/span>Chainlink and how it will help you understand the decentralized oracle platform.\u00a0<\/span><\/p>\n

Blockchain is basically a decentralized network of computers that removes counterparty risks by carrying out computation tasks and data storage in a single shared digital ledger. On the other hand, blockchain can serve many other applications beyond cryptocurrencies with the help of smart contracts. However, smart contracts are responsible for bringing back the counterparty risk into blockchain applications. How?<\/span><\/p>\n

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Reasons for Developing Chainlink<\/b><\/h3>\n

Smart contracts need data for executing commands and cannot fetch external data due to isolated nature of blockchain networks. As a result, developers encounter problems in creating smart contracts which can leverage external data. While this may appear quite simple when you see it this way, there is more to lose for developers. They cannot use information from asset prices, IoT sensors, enterprise systems, and many real-world data sets.\u00a0<\/span><\/p>\n

Therefore, smart contracts have to depend on oracles, which are helpful software components for obtaining data inputs from external sources. How does the <\/span>Chainlink blockchain show any form of relevance in this case? Smart contract developers<\/a> must develop oracles with security and reliability traits at par with blockchain. In addition, a centralized oracle can gain centralized control over a smart contract if it is solely responsible for data inputs in the smart contract.\u00a0\u00a0\u00a0<\/span><\/p>\n

Now, you can clearly notice why decentralized oracles like <\/span>Chainlink are the need of the hour for the crypto<\/a> ecosystem. Let us find out what is so special about the popular decentralized oracle platform.\u00a0<\/span><\/p>\n

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What is Chainlink?<\/b><\/h2>\n

The definition of <\/span>Chainlink is probably the first thing you need to understand its fundamentals. As mentioned already, it is a decentralized oracle service that facilitates better interconnectivity among smart contracts. Smart contracts can leverage the decentralized oracle service for seamless access to credible data feeds, payments, APIs, and a wide range of other resources.\u00a0<\/span><\/p>\n

You can think of the platform as an intermediary between off-chain and on-chain systems. Smart contracts could access off-chain resources and respond timely to real-world events alongside executing agreements without external proof of performance. The primary components of its ecosystem include the <\/span>Chainlink cryptocurrency, LINK token, and the blockchain, i.e., LINK network.\u00a0<\/span><\/p>\n

Many of you might be wondering about the specialty of the LINK decentralized oracle network. The concept of a decentralized oracle basically resolves the most prominent issue in creating smart contracts, i.e., centralized oracles. An overview of the architecture and working of <\/span>Chainlink can shed more light on how the decentralized oracle benefits smart contracts<\/a>.\u00a0<\/span><\/p>\n

Architecture of Chainlink<\/b><\/h3>\n

One of the basic aspects in any discussion about the LINK decentralized oracle network would refer to its architecture. The <\/span>Chainlink blockchain leverages different nodes for obtaining the data required for smart contracts. However, the nodes reach a specific consensus prior to transmission of data to the smart contract. As a result, the smart contract does not have to depend on a single, centralized oracle.\u00a0<\/span><\/p>\n

In addition, <\/span>Chainlink nodes are capable of retrieving data one time or multiple times. How does the decentralized oracle offer the assurance of decentralization<\/a>? You can find the answer by diving deeper into the components of the LINK oracle service. The two important components in <\/span>Chainlink are on-chain and off-chain components. Let us find more about these components and their significance in a smart contract oracle service.\u00a0<\/span><\/p>\n

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