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Provably Fairness

Crystara's blind box mechanics are built on a foundation of provably fair randomness, powered by Supra's decentralized Verifiable Random Function (dVRF).

Understanding Verifiable Randomness​

Verifiable randomness is a cryptographic concept that allows anyone to verify that a random number was generated fairly and wasn't manipulated. This is crucial for NFT blind boxes, where the fairness of the distribution directly impacts collector trust and collection value.

Supra's dVRF Technology​

Crystara leverages Supra's decentralized Verifiable Random Function (dVRF) to ensure all randomness used in the platform is:

  • Unpredictable - No one can predict the outcome in advance
  • Unbiasable - No one, not even Crystara, can manipulate the results
  • Verifiable - Anyone can verify the randomness was generated correctly
  • Transparent - The entire process is visible on the blockchain

dVRF Diagram Source: Supra VRF

How It Works in Crystara​

  1. Request Generation - When a collector mints an NFT from a Gacha Collection, Crystara requests a random number from Supra's dVRF
  2. Secure Computation - The dVRF network generates the random number through a distributed process
  3. On-Chain Verification - The random number is verified and recorded on the blockchain
  4. NFT Assignment - Crystara uses this verified random number to determine which NFT the collector receives

Verification Process​

Every random assignment on Crystara can be independently verified:

  1. Transaction Hash - Each mint transaction contains a unique identifier
  2. dVRF Request ID - This ID links to the specific random number used
  3. Verification Tool - Use our Verification Tool to check any mint (Coming soon)
  4. Blockchain Explorer - Advanced users can verify directly through Supra's blockchain explorer

Benefits for Creators and Collectors​

For Creators​

  • Enhanced Trust - Prove to your community that your distribution is truly random
  • Reduced Liability - No accusations of favoritism or manipulation
  • Marketing Advantage - Promote your collection as provably fair

For Collectors​

  • Guaranteed Fairness - Know that everyone has the same chance at rare items
  • Transparent Process - Verify the randomness of your own mints
  • Community Confidence - Trust in the integrity of the collections you support

Technical Details​

For developers interested in the technical implementation of Supra's dVRF in Crystara: Visit Here: Supra VRF Documentation