MurAll is Integrating Chainlink VRF for Truly Randomized Minting of its NFT Frames Collection

4 min readNov 4, 2021

We’re excited to announce that Frames by MurAll — a novel collection of NFT frames that users can mount their existing NFTs into — is integrating Chainlink Verifiable Random Function (VRF) on the Ethereum blockchain. By integrating the industry-leading decentralized oracle network, we will obtain access to a tamper-proof and auditable source of randomness needed to generate random styles and traits for the NFT frames. Ultimately, this creates a more exciting, transparent, and fraud-proof user experience, as users can mint their Frame NFTs knowing that they all have an equal chance at receiving the rarest and most desirable designs.

Frames by MurAll are revolutionary NFTs which allow collectors to mount their existing artwork in a decorative, rare and highly collectible frame. Using our expertise in technology and design, Frames strike the delicate balance between functionality and beauty. A Frame NFT can wrap around NFTs of all sizes and aspect ratios, meaning images will always fit perfectly within the frame. Frames can also be bound with a chosen NFT to further compound their rarity, allowing them to be sold or transferred as a single NFT. Frame owners will also be able to view their personal gallery on the MurAll dApp, along with the history and live state of different Frame NFTs.

Examples of different Frames by MurAll

In order to fairly generate the traits for each Frame NFT, 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 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 RNG solutions, we selected Chainlink VRF because it’s based on cutting-edge academic research, supported by time-tested oracle infrastructure, 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 Frames 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 Frames is provably fair and was not tampered with by the oracle, outside entities, or the MurAll team.

“Chainlink VRF has been proven to be the go-to solution for generating fair and provably random data. By integrating Chainlink VRF, anyone can prove that each Frames NFT was generated in a secure and unbiased way, creating unparalleled transparency around a traditionally opaque process.”

– Keiron Gulrajani, Co-Founder of MurAll

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 or read the documentation at To discuss an integration, reach out to an expert.

About MurAll

Launched in 2021, MurAll is an on-chain collaborative canvas that was set up to disrupt the NFT space, allowing anyone anywhere to draw on it without restrictions, utilising PAINT token and NFT tokenomics in tandem. The ethos of MurAll is leading by example to create truly inclusive and neutral projects that enhance the NFT arena, by promoting collaboration. Continuing with the theme of disrupting this space as part of the artistic revolution, the MurAll ecosystem is now growing with the launch of Frames.

Find out more about the MurAll project at or explore our knowledgebase. To find out more about Frames visit

See The Evolution, Be The Revolution.




MurAll is a digital collaborative mural on Ethereum that anyone anywhere in the world can draw on, without restrictions. See the Evolution. Be the Revolution.