Chainlink today released Chainlink VRF 2.0 (Verifiable random function), the most popular blockchain oracle software. This new and improved version of the industry’s most widely adopted random number generator (RNG) provides an easy-to-use subscription management app for accessing a secure source of randomness while reducing transaction fees by 60%, empowering smart contract developers to build the next wave of provably fair and scalable NFT and gaming applications.

Whether it’s the outcome of a game, the attributes of an NFT, or the distribution of unique digital assets, randomness is a core component to making these processes fair, exciting, and secure. Blockchains and smart contract alone are incapable of guarantee randomness. Therefore, an oracle network is required to provide tamperproof, cryptographically secured, transparent on-chain randomness. Chainlink VRF, the first blockchain random number generator, has been widely used. It is currently the best-known random number generator in the industry. Chainlink VRF fulfills more than 3,000,000 request transactions. Chainlink VRF provides randomness for popular projects, such as Bored Ape Yacht Club (BYC), Ether Cards, etc.

Chainlink VRF is the industry standard in randomness and has been for the past year.”
Sergey Nazarov was the Chainlink co-founder.

Verifiable and tamperproof randomness is what makes it possible to secure mint NFTs, their attributes, and ensure fair outcomes for blockchain-based gaming. Chainlink VRF already has become the most widely used randomness solution in blockchain, and I think the efficiency advantages of v2 will accelerate its adoption in many other ecosystems.
The randomness that comes from different sources is easily manipulable or susceptible to exploitation. This means that bad actors can manipulate NFT mints and game mechanics in their favor. Chainlink VRF has been created to address this issue. With every new request, Chainlink VRF generates a random number and cryptographic proof of how that number was determined using a combination of unpredictable block data and an oracle’s private key. After the proof has been published on blockchain, it can then be used by consuming apps. These results can be used by consuming applications to verify that they are fair and verifiable.

Chainlink VRF version 2 is now available on Ethereum mainnet. Plans are in place for deployment to other leading blockchains, such as Polygon and BSC. The VRF version 2 release includes major improvements:

• Pay-as you-go subscription management contract makes requests less expensive.
• When there is verifiable randomness, the ability to change the limit of callback gas
• Expansion of capabilities to determine the required number of blocks confirmations for randomness
• An innovative, seamless method to request multiple random number in one on-chain transaction
• Unified billing allows multiple smart contracts addresses to pay their randomness requests using a single subscription account.

Chainlink VRF version 2 is a great tool for NFT Platforms. We are excited about the potential of Chainlink VRF 2. It’s great to be able to request multiple random numbers and have custom callback limits.
Andras Kritof is the creator of Ether Cards NFT, which has been a hit.

It is essential that the NFT sector ensures verifiable randomness. VRF 2.0 allows us to create dynamic NFTs that have greater design possibilities and less development cost for collection collections with our Ether Cards Platform.
Chainlink VRF was used for popular NFT drops and exciting new blockchain games over the past year. Chainlink VRF is growing alongside the rapidly expanding blockchain industry. Its potential uses can keep expanding to support a metaverse which requires entropy in order to replicate our analog universe. This includes everything from loyalty programs, fair selection for high-demand events, to random adjudicators to high stakes processes such as appraisal and arbitration.

Aleksander Leonard Larsen, COO of Axie Infinity said, “Verifiable randomness solutions like Chainlink VRF v2 are essential for developers introducing entropy into on-chain gaming and NFT experiences, empowering them to create fair and tamper-proof play-to-earn games.”

Made up of independent oracle nodes and data providers like Deutsche Telekom’s T-Systems, Swisscom, the Associated Press, and others, the Chainlink Network is the world’s most widely adopted and battle-tested oracle network, securing more than $75 billion worth of value across hundreds of applications and a dozen different blockchains at the end of 2021.

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