Too Long; Didn't Read
The Denali testnet is the third Avalanche testnet; the first two were Borealis and Cascade. Anyone launching a node between June 1 and June 8, with more than 30% uptime and maintaining the node up to date according to releases, will be able to receive 2000 Avalanche. The reward will be locked for one year from the launch of the mainnet. There were 1000 spots available for the program; the goal was to reach at least 1000 nodes to test the network. The team was committed to helping all the participants and developers.