Yes, 500,000 ZKP in rewards were distributed on Tuesday 8th March 2022. All LaunchDAO participants (5,346) were sent an equal share of 93.52787 ZKP on Polygon.
The ZKP rewards were sent on Polygon to the KYC'd addresses used to register the LaunchDAO private identity.
Firstly, please make sure you are looking in the right account, e.g. for LaunchDAO rewards, look in the account which was KYC'd for public / private sale, and make sure you are checking on Polygon not the Ethereum mainnet.
Due to the way the LaunchDAO protocol works, those PreZKP accounts are necessarily intended to be private and completely unlinked to any other account. However, in order to use those ZKP rewards (e.g. staking or trading), those accounts would need to receive MATIC to pay for gas, which would require linking another account to the rewarded account, thereby creating a high risk that privacy would be compromised.
The rewards were sent on Polygon because the cost in gas fees on Ethereum mainnet of doing anything with this amount of ZKP would significantly or entirely outweigh the value of the tokens, rendering the distribution pointless.
This is due to a number of participants who managed to register their private identity, but did not manage to claim PreZKP. In some cases this was due to unexpected issues such as network congestion, hardware wallet incompatibilities, and unreliable or slow blockchain RPC endpoints. It was considered fairest for these participants not to miss out on rewards due to circumstances beyond their control.
Panther Reward Points (PRPs) are non-transferable points associated with a user's private wallet address. They will —once Panther Core (v1) is live— be redeemable for $zZKP through a one-sided Automated Market Maker. PRPs are distributed as rewards for those that contribute to shielding by adding tokens to MASPs.