{"posts":[{"id":18624,"title":"OVR Using Chainlink to Connect the Metaverse to Real World Data and Events","excerpt":"OVR is happy to announce our live and ongoing integration with Chainlink, the marketing-leading decentralized oracle network that provides smart contracts with secure and reliable off-chain data and computation. Our current integration involves the use of Chainlink Verifiable Randomness Function (VRF) to fairly and transparently select a special grant fund winner from the list of […]","content":"

OVR is happy to announce our live and ongoing integration with <\/span>Chainlink<\/span><\/a>, the marketing-leading decentralized oracle network that provides smart contracts with secure and reliable off-chain data and computation. Our current integration involves the use of <\/span>Chainlink Verifiable Randomness Function (VRF)<\/span><\/a> to fairly and transparently select a special grant fund winner from the list of participants taking part in our upcoming OVRLand Treasure Hunt. Additionally, we plan to leverage Chainlink oracles throughout the platform to connect the physical world to OVRLand\u2019s digital metaverse, enabling a virtual experience that\u2019s impacted by the real world.<\/span><\/p>\n

OVR is a decentralized platform for geolocalized Augmented Reality (AR) \/ Virtual Reality (VR) experiences, with a vision to merge the physical and the virtual world through AR. OVR allows users to build, host, and visualize AR\/VR experiences that are customized to specific geographic locations.\u00a0<\/span><\/p>\n

This is accomplished by OVR dividing the digital world into 300 sqm hexagons called OVRLands, which each represent actual physical geographic locations. Each OVRLand is tokenized using the ERC-721 NFT standard on the Ethereum blockchain. The owner of each OVRLand NFT can assign the AR visual experience for the specific geographic location that their NFT represents.<\/span><\/p>\n

But what if we could embed decentralized logic into OVRLand NFTs? What if we could take off-chain\/geographic data and use it on the blockchain to supercharge interactions within the OVR decentralized metaverse?<\/span><\/p>\n

Here is where Chainlink comes to play, allowing OVR to securely and reliably connect real-world events to blockchains in order to trigger smart contract executions. Data such as randomness, geolocation, weather, and more can all be fetched from off-chain sources and supplied on-chain via Chainlink-powered decentralized oracle networks.\u00a0<\/span><\/p>\n

The most immediate use case for OVR is leveraging randomness to determine metaverse events. However, the source of randomness must contain high assurances that it can\u2019t be manipulated or predicted to gain unfair advantages, especially when the randomness is responsible for the movement of real economic value. This is why we selected Chainlink VRF to determine the winner of our 15k OVR token final extraction prize, which serves as a community reward to treasure hunters <\/span>and to participate in our wider 50k grant for OVRLand buyers.<\/span> The extraction process will be done through a public and deterministic algorithm that will iterate through the ordered list of OVRLand IDs, with Chainlink VRF used to generate and supply the random number used to fairly and transparently select a winner from the list.<\/span><\/p>\n

Chainlink VRF works by combining block data that is still unknown when the request is made with the oracle node\u2019s pre-committed private key to generate both a random number and a cryptographic proof. The OVR smart contract will only accept the random number input if it has a valid cryptographic proof, and the cryptographic proof can only be generated if the VRF process is tamper-proof. This provides users with automated and publicly verifiable assurances directly on-chain that selection using Chainlink VRF is provably fair and cannot be tampered with or predicted by the oracle, outside entities, or the OVR.ai team.<\/span><\/p>\n

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In the future, we also anticipate using a variety of Chainlink Data Feeds beyond VRF. Let\u2019s break down some concrete examples on how Chainlink Data Feeds can supercharge blockchain metaverses and OVR.<\/span><\/p>\n

Imagine having AR\/VR experiences that are not only geolocalized but also \u201caware\u201d of real world conditions:<\/span><\/p>\n