Author : Kenno

Date : Dec 21,2022

NFT collection created by Cool Cats, Animoca Brands, and OneFootball, on the Polygon Mainnet.

Chainlink Verifiable Random Function (VRF) is now available for Cool Cats FC, an NFT collection created by Cool Cats, Animoca Brands, and OneFootball, on the Polygon Mainnet. They can employ an unchangeable, verifiable random number generator (RNG) by integrating this top decentralized oracle network. Users can attest that they have an equal chance of winning objects that have been used or signed during a game, rare in-person experiences, digital treasures, and much more. As a result, the user experience is more engaging and transparent.

Football lovers from all over the world are uniting to celebrate the World Cup, the biggest sporting event in the world, with the Cool Cats FC NFT collection. One of the 3,000 dynamic NFTs in the collection serves as a representation for each of the 32 teams in Cool Cats FC. From the group stage to the round of 16, quarterfinals, semifinals, and finals, holders can observe how their team's performance evolves.

Pros and Cons of Chainlink VRF Integration

Creators require access to a safe random number generator (RNG) that anyone can verify on their own in order to distribute Cool Cats FC rewards at random. RNG solutions for smart contracts must take into account a variety of security considerations in order to prevent manipulation and maintain the integrity of the system. For instance, RNG solutions derived from blockchain data, like as block hashes, can be used by miners and validators. However, off-chain RNG solutions created using off-chain APIs are opaque and frequently fail to provide customers with any evidence of an honest process.

Cool Cats FC considered a number of options before settling on Chainlink VRF because it is secured by the development and on-chain verification of cryptographic proofs that verify the integrity of each random number provided to smart contracts, is supported by cutting-edge academic research, and is supported by a dependable, time-tested oracle network.

Because they give owners a chance to win items that may be utilized in the real world, rewards have grown to be a crucial component of the release of new NFT collections. The CEO of Cool Cats, Stephen Teglas, claims that by including Chainlink VRF into the distribution of Cool Cats FC prizes, consumers can affirm that they all have an equal opportunity to win personalized jerseys, digital artifacts, and a trip to the AC Milan stadium.

How does it function?

Chainlink VRF mixes the oracle node's private key, which has already been made public, with block data, which is still unknown at the time of the initial request. A random number and a cryptographic proof are provided. A sufficient cryptographic proof must be provided for the Cool Cats FC smart contract to accept a random number as input, and this can only be done if the VRF protocol cannot be altered. This demonstrates the unpredictability of our approach for awarding prizes and provides clients with automated and verifiable assurances that neither the Cool Cats FC team nor any other third parties nor the oracle tampered with the selection procedure.

Concerning Chainlink

Key businesses including DeFi, insurance, gaming, NFTs, and others have been able to conduct billions of dollars' worth of transactions thanks to Chainlink, the industry-standard Web3 services platform. Chainlink provides businesses all around the world with a single point of access to all blockchains as the greatest decentralized oracle network. Additionally, it enables the creation of rich Web 3 applications with simple access to real-world data on any blockchain.