Hebys NFT Search Engine and Marketplace Integrates Chainlink VRF to Help Power Fair NFT Distributions

HEBYS NFT Search Engine
3 min readOct 5, 2022

We’re excited to announce that Hebys — an NFT search engine and multi-chain marketplace for non-fungible tokens (NFTs) — has integrated Chainlink Verifiable Random Function (VRF) on Ethereum, BNB Chain, Avalanche, Polygon, and Fantom mainnets. By integrating the industry-leading decentralized oracle network, we now have access to a tamper-proof and auditable source of randomness needed to help fairly distribute NFTs for collections launched on our platform. Ultimately this creates a more exciting and transparent user experience, as users can have stronger assurances that NFTs launched on our platform are distributed using verifiable randomness.

Hebys is a robust and comprehensive NFT search engine with multi-chain and cross-chain capabilities, metaverse/marketplace-agnostic browsing, and AI features. Hebys currently supports Ethereum, BNB Chain, Avalanche, Polygon, and Fantom. The Solana network will also be integrated into Hebys soon. Listing more than 30 million NFTs on six leading blockchains of the NFT industry in a single hub, Hebys provides filtering, sorting, and classification services for the NFT market.

The Hebys NFT marketplace has more blockchain support than many other NFT marketplaces in the industry, providing users with greater convenience and freedom in creating and selling NFTs. Unlike other NFT marketplaces, Hebys lists NFTs in stablecoin prices, which helps mitigate volatile NFT prices. Using Hebys, anyone can easily access the NFT market to unlock the full potential of what the NFT ecosystem offers.

To help provide transparent and fair NFT distributions on our platform, we needed 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 derived from blockchain data like block hashes can be exploited by miners/validators, while off-chain RNG solutions derived from off-chain APIs 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 a time-tested oracle network, and secured through the generation and on-chain verification of cryptographic proofs that prove 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 Hebys 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 NFT mints and distributions on our platform are provably fair and were not tampered with by the oracle, outside entities, or the Hebys team.

“In addition to the fact that Chainlink is a critical service provider in the Web3 ecosystem, the excellent support during the integration process was also an important factor in choosing to use Chainlink VRF.”

–Mustafa El Aliwat, CEO of Hebys.

About Chainlink

Chainlink is the industry standard for building, accessing, and selling oracle services needed to power hybrid smart contracts on any blockchain. Chainlink oracle networks provide smart contracts with a way to reliably connect to any external API and leverage secure off-chain computations for enabling feature-rich applications. Chainlink currently secures tens of billions of dollars across DeFi, insurance, gaming, and other major industries, and offers global enterprises and leading data providers a universal gateway to all blockchains.

Learn more about Chainlink by visiting chain.link or reading the developer documentation at docs.chain.link. To discuss an integration, reach out to an expert.

About Hebys

Hebys is a robust and comprehensive NFT Search Engine with multi-chain and cross-chain capabilities, metaverse/marketplace-agnostic browsing, and AI features.



HEBYS NFT Search Engine

NFT Search Engine providing data for all NFTs on multiple blockchains, marketplaces and metaverse.