BusinessBuildersNFT Integrates Chainlink VRF and Price Feeds for Secure Functionality

BusinessBuildersNFT
4 min readMay 10, 2022

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BusinessBuildersNFT is excited to announce that we have integrated Chainlink Verifiable Random Function (VRF) and Chainlink Price Feeds on Polygon mainnet.

By integrating the industry-leading decentralized oracle network, we now have access to a verifiable random number generator (RNG) as well as a robust and decentralized price data source. Chainlink VRF helps power a fair NFT minting process while Chainlink Price Feeds help maintain and stabilize the costs of using our NFT bridge.

Business Builders is a play to earn game in which complex DeFi mechanics are introduced to maintain the stability and security of the project in the long term. It is a game of building a business — we intend to simulate the daily life of an entrepreneur, where players can hire and fire employees, build factories in cities, manage city resources, and become presidents of their organization.

These in-game simulations include the minting and burning of NFTs, the staking and increased usability of tokens, as well as community pools for the generation of our native token. Additionally, our systems will be multi-chain, enabling users from all over the world to generate NFTs and build their own empires.

Our universe (Meter): https://universe.businessbuilders.city
NFT manager (Meter): https://meter.businessbuilders.city
NFT manager (Polygon): https://app.businessbuilders.city.

Generating Provably Random NFTs With Chainlink VRF

We initially planned to use an internal oracle to constantly generate random numbers and add them to the contract state to mint truly random NFTs. However, we realized that making an in-house oracle was a subpar solution — one that would require more capital than necessary and reduce player trust in the game’s integrity due to a lack of transparency.

We ultimately decided to use Chainlink VRF as the best-in-class solution to the problem of using randomness in blockchain applications. 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 BusinessBuildersNFT’s smart contracts 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 helps provide users with automated and publicly verifiable proof directly on-chain that each NFT minting using Chainlink VRF for randomness is probably fair and cannot be tampered with or predicted by the oracle, outside entities, or the BusinessBuilders team.

Improving the NFT Bridge With Chainlink Price Feeds

Chainlink Price Feeds are widely used across the DeFi ecosystem, with the service already helping secure tens of billions of dollars in total value locked (TVL).

For Business Builders, Chainlink Price Feeds help maintain and stabilize the cost of using our NFT bridge, helping ensure users that they will not pay overages and helping us create usage projections using a robust and future-proof price data source.

Features that made Chainlink Price Feeds a standout solution include:

  • High-Quality Data — Chainlink Price Feeds source data from numerous premium data aggregators, leading to price data that’s aggregated from hundreds of exchanges, weighted by liquidity depth, and cleaned from outliers and suspicious volumes. Chainlink’s data aggregation model generates precise global market prices that are resistant to API downtime, flash crash outliers, and data manipulation attacks like flash loans.
  • Secure Node Operators — Chainlink Price Feeds are secured by independent, security-reviewed, and Sybil-resistant oracle nodes run by leading blockchain DevOps teams, data providers, and traditional enterprises with a strong track record for reliability, even during high gas prices and extreme network congestion.
  • Decentralized Network — Chainlink Price Feeds are decentralized at the data source, oracle node, and oracle network levels, generating strong protections against downtime and tampering by either the data provider or the oracle network.
  • Transparency — Robust, publicly available reputation frameworks and on-chain monitoring tools allow users to independently verify the historical performance of node operators and oracle networks, as well as check the real-time prices being offered.

After integrating these services, we realized the importance of Chainlink to our project’s versatility and stability in the long term. We expect to integrate more Chainlink services — specifically Chainlink Keepers — in the future to automate complex smart contract processes.

“It’s hard to argue against the value that Chainlink brings to the table for Business Builders. Chainlink VRF and Price Feeds are time-tested services that enable more transparent, fair, and decentralized functionality for our players.” — the Business Builders team.

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. It also 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 Business Builders

BusinessBuilders is a project about MultiChain NFTs. We want to build a self-sustaining system where the owner evolves with his NFTs. Also, you can simulate your empire, fire and hire employees, build cities and worlds, find better relationships and simulate your business. You can learn, earn and play with businessbuilders.

We are a growing community, before joining you can read our documentation in https://docs.businessbuilders.city/

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BusinessBuildersNFT

BusinessBuildersNFTs is a game and software development studio focused on creating innovative games that integrate new financial economies.