The Vogu Collective Integrates Chainlink VRF to Secure its first randomized NFT art collection

The Vogu Collective
4 min readAug 18, 2021


Vogu Collective x Chainlink

We’re excited to announce that The Vogu Collective — which recently launched a randomized NFT collection of 7,777 unique robot avatars — has integrated Chainlink Verifiable Random Function (VRF) on the Ethereum 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 verify the rarity of each NFT holder’s Vogu contract and artwork. Ultimately this creates a more exciting, transparent, and fraud-proof user experience, as users can collect, trade, and sell their NFTs on the secondary markets with confidence in their smart contract’s validity, while also being able to use their individual NFTs to gain exclusive access to upcoming Vogu releases.

This Vogu NFT collection marks the beginning of an immersive, multimedia art and storytelling project in which collectibles play an integral role in shaping and growing creative content. Set within an expansive science-fiction universe, our randomized robot avatars, known as Tars, bear narrative significance within the Vogu project’s lore as will all future Vogu stories, art, and asset releases. Your Tar NFT grants you exclusive entry into the greater Vogu Metaverse, a storyscape that will utilize multiple forms of media in the creation and distribution of content. Your Tar NFT is also an invitation to join our fast-developing, collaborative community of Vogu users and artists.

In order to build and assign our collection of 7,777 unique art pieces, 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 Vogu Collective 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 the Vogu NFT collection is provably fair and cannot be tampered with by the oracle, outside entities, or the Vogu Collective team.

Chainlink VRF

“NFT communities demand fairness and transparency. With Chainlink we were able to deliver both.” — Andrew Drayton, Co-Founder of the Vogu Collective

About Chainlink

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, 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.

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About The Vogu Collective

The Vogu Collective’s inaugural NFT collection marks the beginning of an immersive, multimedia art and storytelling initiative. We have set our collection of 7,777 unique robot avatars within an expansive fictional universe, which will serve as the narrative basis for all future Vogu stories, characters, and art. With the help of a growing roster of talented creators, we plan to introduce this content via different mediums, such as animation, comics, and fashion.

Vogu is an emerging science fiction IP, and as we grow this IP, we will continue to update and design access points for our dedicated community of NFT holders. From here on out, your NFT is your ticket into the greater Vogu Metaverse — giving you exclusive access to new releases, assets, and collabs.

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The Vogu Collective

The Vogu NFT collection marks the beginning of an immersive, multimedia art and storytelling initiative. Our randomized NFT collection contains 7,777 tokens.