Blockstack PBC moved from the R&D phase to the infrastructure building phase in 2017 (upon closing of the Series A equity investment). Blockstack PBC successfully completed the launch of the Stacks blockchain in Q4 2018, meeting Milestone 1.
Since Q4 2018, we’ve been in the developer traction phase. The number of independent applications built on the network increased from 17 to 46 in Q4 2018, from 46 to 86 in Q1 2019, from 86 to 165 in Q2 2019, to 165 to 265+ apps in Q3 2019. The Blockstack network has 115,780 registered user accounts as of July 2019, and Blockstack PBC has increased focus on user acquisition during the transition from the developer traction phase to user engagement phase.