Everyone who has played blockchain card games and NFT blind boxes has experienced this feeling—always feeling extremely unlucky, as if someone is manipulating the odds behind the scenes. This feeling is not unfounded. In the crypto and blockchain gaming ecosystems, "random number generation" has always been the most susceptible to hidden tricks.

The industry often talks about "Verifiable Random Functions (VRF)," which sound very sophisticated and claim to ensure fairness and justice. But the problem is, many projects' VRF implementations are not as transparent as they seem— they show you the results, but the underlying generation process is a complete black box. To put it simply, it's like a magician showing you the final rabbit but never revealing how it was pulled out of the hat.

**What are the risks of traditional random number schemes?**

Most projects rely on a small number of "oracle nodes" to generate random numbers. This is like a casino only having one dealer deal cards—if he says it's spades, then it's spades. Even if he shows you the cards afterward, he can cheat during shuffling, using computational advantages to "influence" the probability distribution. As long as the node operator has enough computing power and motivation, they can manipulate the results to some extent.

**A new approach to technical solutions**

Recently, some projects have started exploring decentralized random number schemes. The core idea is to "break apart the dice and let the entire network participate in rolling." Specifically, the system no longer relies on a single node but combines the current block's state information (block hash, timestamp, etc.) with the user's unique seed to generate unpredictable and unprecomputable random numbers. This way, no single participant can influence the outcome through pre-calculation or delayed actions.

Improvements in the random number mechanism directly impact the confidence of participants in blockchain games and the NFT market. When the underlying guarantees become truly transparent and verifiable, the notion of "rigged" manipulation by the house naturally loses credibility.