> For the complete documentation index, see [llms.txt](https://help.zke.com/symbol/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.zke.com/symbol/link-chainlink.md).

# LINK(ChainLink)

* Issue Time

  2017-09-22
* Total Supply

  1,000,000,000 LINK
* Circulation

  491,599,971  LINK
* White paper

  \--
* Website

  <https://chain.link/>
* Block Explorer

  <https://etherscan.io/token/0x514910771af9ca656af840dff83e8264ecf986ca>

Chainlink (LINK) is a decentralized network that provides information (oracles) to smart contracts. Founded in 2017 by Sergey Nazarov and Steve Ellis, Chainlink aims to solve the problem of off-chain information sourcing by smart contracts for their execution parameters. Smart contracts are designed to execute automatically when certain paramenters are met, however, when these parameters exist off-chain there is a reliance on sources of information (known as oracles) to provide the necessary information. Off-chain oracles tend to be centralized and with it comes a reliance on a third party to provide critical information in a trustworthy and time critical manner. ChainLink aims to break this reliance by feeding information to smart contracts via a network of decentralized oracles that work together on the Link blockchain to verify and forward critical information to these contracts. The ChainLink network allows users who have either a data feed or information carrying APIs to easily provide information to smart-contracts in exchange for the LINK token.

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