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        • Launch an Endpoint Node
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          • 1. Writing ERC-721 Smart Contract
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    • Operation Guide
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          • 1. Environment Setup
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          • 3. Directory Structure
          • 4. Write Smart Contract
          • 5. Frontend Code Overview
            • 5-1. Blocknumber Component
            • 5-2. Auth Component
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          • 6. Deploy Contract
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        • Klaystagram
          • 1. Environment Setup
          • 2. Clone Klaystagram DApp
          • 3. Directory Structure
          • 4. Write Klaystagram Smart Contract
          • 5. Deploy Contract
          • 6. Frontend Code Overview
          • 7. FeedPage
            • 7-1. Connect Contract to Frontend
            • 7-2. UploadPhoto Component
            • 7-3. Feed Component
            • 7-4. TransferOwnership Component
          • 8. Run App
        • Building a Buy Me a Coffee dApp
          • 1. Project Setup
          • 2. Creating a BMC Smart Contract
          • 3. Testing the contract using scripts
          • 4. Deploying BMC Smart contract
          • 5. Building the BMC Frontend with React and Web3Onboard
          • 6. Deploying Frontend code on IPFS using Fleek
          • 7. Conclusion
        • Migrating Ethereum App to Klaytn
        • Connecting MetaMask
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        • Verifying Smart Contracts Using Block Explorers
      • Developer Tools
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            • Particle Network
        • Oracles
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          • Witnet
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          • LayerZero
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    • Glossary
  • ---
    • Klaytn Hard Fork History
    • Klaytn 2.0
      • Metaverse Package
      • Finality and Improvements
      • Ethereum Compatibility
      • Decentralizing Governance
      • Massive Eco Fund
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  • ℹ️Latest Klaytn Docs
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  • Introduction
  • Usage
  1. -
  2. dApp Developers
  3. Developer Tools
  4. Oracles

Witnet

PreviousOrakl NetworkNextSupraOracles

Last updated 2 years ago

Introduction

The multichain decentralized oracle enables smart contracts to actualize their potential by providing them access to all sorts of valuable external data sets. These valuable data sets include sports results, stock prices, weather forecasts, randomness, et al. To offer decentralized oracle services, Witnet relies on a distributed network of peer nodes— colloquially called witnesses—who earn Wit tokens as a reward for retrieving web data and reporting it directly to the smart contracts. The witnesses are responsible for sourcing, retrieving, and verifying the data sets. To ensure transparency, each anonymous peer is incentivized to report the retrieved data honestly and is punished or slashed for any wrongdoing.

Usage

This oracle network is currently running on the Klaytn Cypress Mainnet and Klaytn Baobab Testnet. To get started with connecting to the data feeds and randomness on Klaytn, refer to the following guides:

Witnet Price-Feed Tutorial
Random Number Generation on Klaytn with Witnet
Witnet