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Chainlink: everything you need to know about LINK

Axel van den Boogaard

Axel has been immersing himself in the world of crypto and blockchain for quite some time, which he then translates into understandable articles.

Chainlink facts




Smart contracts


Sergey Nazarov




A Proof of Stake spin-off

Launch date

September 2017

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Wat is Chainlink?

 Chainlink is a decentralized oracle network with LINK as its cryptocurrency. The goal of Chainlink is to provide reliable data to smart contracts on the blockchain, enabling them to function more effectively. Smart contracts are self-executing programs that run based on certain conditions. However, they often lack the information they need to operate. This is where Chainlink comes in: by bringing external data onto the blockchain, smart contracts can use this data to make their decisions. 

The cryptocurrency on the Chainlink network is LINK. This token is used for payments between users of the network and incentivizes node operators (computers serving as nodes) to provide and verify data. 

How does Chainlink work?

Chainlink retrieves data from external sources and integrates it into the blockchain. The system uses what are known as "oracles," which are responsible for collecting, verifying, and transmitting data to the blockchain. Unlike traditional oracles, which rely on a central authority, Chainlink uses decentralized oracles. This means data is collected and verified when a smart contract is executed on the blockchain. 

The use of Chainlink ensures that the data used by smart contracts is reliable and accurate because oracles verify the data before it's transmitted. Furthermore, the decentralized nature of the system eliminates the need for central authority control, making the network immune to censorship and manipulation.

The LINK token

LINK is the native token of the Chainlink platform. The token economics of Chainlink provide an economic incentive for node operators to run the system's oracles. The system includes a mechanism for node operator reputation and rating, which assesses and records the quality of data provided by oracles. 

Node operators are rewarded with LINK tokens for gathering and verifying data requested by smart contracts. The better the performance of the oracles, the better their reputation becomes, and the more requests they receive from smart contracts. This creates an economic incentive for node operators to provide and verify the highest quality data. 

Additionally, Chainlink also offers a mechanism for staking LINK tokens. Stakers receive a portion of the rewards node operators receive for their work in exchange for holding their tokens. This allows stakers to participate in the platform's economy and benefit from Chainlink's growth and adoption.

The Technology Behind LINK

Chainlink's technology consists of a decentralized network of node operators. It is built on the Ethereum blockchain platform and utilizes the Ethereum Virtual Machine (EVM) to execute smart contracts. The network comprises two key components: oracles and smart contracts. 

Oracles are crucial components of the Chainlink network that collect and verify data from off-chain sources and then make it available to smart contracts. The network's node operators are responsible for performing this task and are rewarded with LINK tokens for their contributions. Node operators communicate with each other through a decentralized network and use a consensus mechanism to ensure data integrity and reliability. 

Smart contracts are self-executing programs that run on the blockchain. They obtain data from oracles and use it to automatically execute transactions. Smart contracts on Chainlink can source data from a wide range of sources, including external software environments, third-party oracles, and other blockchain platforms.

The Chainlink ecosystem

The Chainlink ecosystem is a network of various components and players that collaborate to make the platform function. It includes node operators, smart contract developers, data providers, and users looking to execute smart contracts. 

  • Node operators are responsible for gathering and verifying data and integrating it into smart contracts. They earn rewards in the form of LINK tokens for their contributions to the network. 
  • Smart contract developers use Chainlink's APIs (software environments) and tools to build smart contracts that can access data from external sources. They pay node operators for access to this data and for executing smart contracts. 
  • Data providers offer data that node operators use in smart contracts. They can be paid in LINK tokens for providing valuable data to the network. 
  • Users utilize the Chainlink ecosystem to execute smart contracts that source data from external sources. They can also be paid in LINK tokens for providing data to the network. 

This balanced ecosystem allows Chainlink to create a decentralized oracle network capable of obtaining and integrating data from a wide range of sources into smart contracts. This enables users to build and execute much more complex and valuable applications. 


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Benefits of Chainlink

Chainlink offers several key advantages, making it an excellent choice for anyone interested in using blockchain technology. Benefits of Chainlink (LINK) include: 

  • Secure connections between smart contracts and off-chain data. 
  • High scalability. 
  • Strong data integrity. 
  • A good reputation and reliability. 
  • Interoperability with other systems and blockchains.

Drawbacks of Chainlink

What are some disadvantages of Chainlink? 

  • High usage costs. 
  • Limited flexibility regarding specific types of data. 
  • Open-source system makes significant (development) data publicly accessible. 

Who is the founder of Chainlink?

The founder of Chainlink (LINK) is Sergey Nazarov, a well-known technology entrepreneur. He has a background in computer science and software development and has made a significant contribution to the blockchain industry. With Chainlink, he made it possible to realize a much broader range of applications for blockchain technology. Thanks to his innovative approach and technical expertise, Sergey Nazarov is a respected figure in the blockchain industry and is recognized as one of the most influential founders in the sector.

Price forecasts

In 2026 experts expect a minimal price of €40.00 and a minimal price of €132.48 in 2031.

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Market information

Use these figures to get a better picture of the Chainlink market.

24h volume

€210.6 million


€7.7 billion

LINK in circulation

608.1 million

All time high


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