FarmHero Integrates Chainlink VRF to Secure Fair Distribution of Rare NFTs
We’re excited to announce that FarmHero — a cross chain DEFI protocol that combines yield farming, NFT and gaming — has integrated Chainlink Verifiable Random Function (VRF) on the Polygon mainnet. By integrating Chainlink’s industry-leading decentralized oracle network, we now have access to a tamper-proof and auditable source of randomness needed to fairly distribute Rare NFTs via the FarmHero Loot Boxes. Ultimately this creates a more exciting, transparent, and fraud-proof user experience, as users can redeem the FarmHero Loot Boxes without worrying whether the prize is manipulated or not.
FarmHero is a novel cross-chain DEFI protocol that mixes yield farming, NFT and gaming together. It aims to provide fun, profitable experience to the DEFI world. The users can earn profits while having fun on FarmHero according to their risk appetite in several different approaches. Users can join the yield farm and earn free HERO token, which can be sold or to redeem the Loot Boxes to get rare NFTs.
On FarmHero, the NFTs mean more than an art piece of aesthetic value, it can be used to farm HERO tokens as well. The rarer the NFT is, the more powerful it is when farming in the NFT farm. Also, FarmHero provides several games for the community to play with each other, like the auction and fomo games.
In order to provide a fair distribution of the prize via the FarmHero Loot Box, we need access to a secure random number generator (RNG) that any user could independently audit. However, RNG solutions for smart contracts require several security considerations to prevent manipulation and ensure system integrity. For instance, RNG solutions using on-chain data like block hashes can be exploited by blockchain miners, while off-chain RNG solutions like traditional data providers are opaque and don’t provide users with definitive proof about the integrity of the process.
After reviewing various solutions, we selected Chainlink VRF because it’s based on cutting-edge academic research, supported by Chainlink’s time-tested oracle infrastructure, and secured through the generation and on-chain verification of cryptographic proofs that guarantee the integrity of each random number supplied to smart contracts.
Chainlink VRF works by combining block data that is still unknown when the request is made with the oracle node’s pre-committed private key to generate both a random number and a cryptographic proof. The FarmHero 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 our users with automated and verifiable assurances directly on-chain that FarmHero is provably fair and cannot be tampered with by the oracle, outside entities, or the FarmHero team.
“ Chainlink VRF perfectly solves our problem of proving the fairness of our Loot Boxes. Our team never again needs to convince our community that we can not manipulate the Loot Box results. It gives our community and our team the confidence that our Loot Box is fair to the community, also is taper-free against hackers on the blockchains”
— Kevin, Marketing Director of FarmHero
Chainlink is the industry standard oracle network for powering hybrid smart contracts. Chainlink Decentralized Oracle Networks provide developers with the largest collection of high-quality data sources and secure off-chain computations to expand the capabilities of smart contracts on any blockchain. Managed by a global, decentralized community, Chainlink currently secures billions of dollars in value for smart contracts across decentralized finance (DeFi), insurance, gaming, and other major industries.
Chainlink is trusted by hundreds of organizations, from global enterprises to projects at the forefront of the blockchain economy, to deliver definitive truth via secure, reliable oracle networks. To learn more about Chainlink, visit chain.link, subscribe to the Chainlink newsletter, and follow @chainlink on Twitter. To understand the full vision of the Chainlink Network, read the Chainlink 2.0 whitepaper.
FarmHero is a novel cross-chain DEFI protocol that mixes yield farming, NFT and gaming together. It aims to provide fun, profitable experience to the DEFI world. First launched on Binance Smart Chain, it has ranked TOP 20 in Binance Smart Chain’s Most Valuable Builder (MVB) II accelerating program. FarmHero now successfully launched on Polygon on June 22nd, 2021, they quickly accumulated a prosperous community and will release their Loot Box Series in July 2021.