Security and Transparency

At Viision, trust and transparency are at the core of every raffle. Our mathematical formula, combined with the power of Chainlink VRF, ensures impartial and verifiable results. This approach removes any doubt about the process, delivering a fair and auditable experience for all participants.

The formula used in the raffle is publicly available for review, reflecting our commitment to clarity. Here’s how it works:

$$V = (R mod N) + 1$$

Where:

• V: The winning ticket number

• R: The random number generated by the Chainlink VRF

• mod: The mathematical operation that returns the remainder of a division between two numbers

• N: The total number of tickets issued for the raffle

• +1: Adjustment to ensure the winning ticket number falls within the correct range, from 1 to N.

---

By applying this formula, we ensure that the random number generated is always converted into a valid ticket. For example, if there are 100 tickets and the number generated is 257, the calculation would be:

V = (257 mod 100) + 1 V = 57 + 1 V = 58

In this case, ticket number 58 is the winner, ensuring everyone has an equal chance among all issued tickets.

Moreover, all raffles are recorded on the blockchain, enabling public audits. Participants can verify the generated numbers, the calculations applied, and the winning ticket, further reinforcing trust in the process. This practice removes any doubts and guarantees complete integrity of the results.

Viision’s smart contracts do more than just conduct the raffles. They autonomously handle prize payouts and the distribution of VIISION tokens, following a programmed schedule with no need for intermediaries. This reduces errors, speeds up processes, and ensures everything is executed as planned.

Viision also solves a common problem with off-chain raffles and sweepstakes: the lack of transparency. In traditional systems, it’s hard to trust results, which are often opaque and subject to manipulation. By using blockchain technology and Chainlink VRF, we guarantee that every raffle is a demonstration of trust and innovation.

At Viision, raffles aren’t just about winning prizes—they’re a reliable, auditable, and transformative experience. That’s how we redefine transparency and fairness in every raffle we hold.