ZK or more specifically ZK-SNARKs (Zero-Knowledge Succinct Non-Interactive Arguments of Knowledge) have been our main focus for quite some time now and we are happy to say that our ZK-SNARK library is complete and audited. This was one of the main hurdles we have faced as it is quite a challenging and deep subject to work on. The team at Void knew the importance it holds in the platform, therefore we had to make sure it was done correctly. The reason ZK was such a heavy focus, is because it is essential for proving and verifying transactions in the Void Anonymity Pools in a secure, anonymous and decentralized manner. This allows the contract to prove the owner of a deposit with only a fraction of the statement, ensuring the withdrawal address cannot be linked to the original depositing address. The fact that this feature makes the platform completely decentralized means that no person or entity can be forced to (or is even able to) give up that information to help with tracking transactions.
Alongside the main functionality of the ZK for the VAP's, it is also an important process in the gamification of the Void Airdrop and the reward claiming mechanism.