In under a month, Ardor blockchain’s node count increased by almost 200%, while Nxt’s blockchain increased by 315%, from 159 to 659
Source: https://cointelegraph.com/news/spike-in-nxt-and-ardor-nodes-after-new-incentives-rolled-out
Spike in Nxt and Ardor Nodes After New Incentives Rolled Out
April 29, 2020
CoinTelegraph