Randomness, defined as the absence of predictability or pattern, is a natural phenomenon that is challenging to replicate in computer environments due to their deterministic nature. While individual random events are unpredictable, their probabilities over repeated occurrences can often be calculated. The increasing demand for unpredictability in digital systems, especially on the internet, has led to the exploration of ways to generate random numbers that are crucial for blockchain and Web3 technologies. Random number generators (RNGs) are classified into pseudo-random number generators (PRNGs), which use mathematical algorithms, and true random number generators (TRNGs), which rely on unpredictable physical data. In blockchain, random numbers are vital for security and fairness, influencing systems like proof-of-work and proof-of-stake. Chainlink's Verifiable Random Function (VRF) has set standards for RNG solutions by providing tamper-proof and verifiable randomness that is crucial for smart contracts across multiple blockchains. VRF's transparency, security, and reliability have made it integral for decentralized applications, ensuring fairness and innovation in Web3 environments.