What Blockchain is conflux on?

Could you elaborate on the specific blockchain technology Conflux is utilizing? As a cryptocurrency and finance practitioner, I'm curious to understand the technological underpinnings that Conflux relies on. Is it a fork of an existing blockchain? Or does it employ a unique consensus mechanism? Additionally, how does its architecture differ from other prevalent blockchains, and what are the key advantages it aims to achieve through its design? I'm interested in gaining a deeper insight into the technical details of Conflux's blockchain implementation.