When did the BSP Coin series come out?
Could you elaborate on the release timeline of the BSP Coin series? I'm curious to know when these cryptocurrencies were first introduced to the market. Was it a gradual rollout or a simultaneous launch? Did the series emerge in response to a specific market need or technological advancement? I'm interested in understanding the context surrounding their emergence and how they have evolved since their inception. Clarifying these details would greatly assist me in gaining a comprehensive understanding of the BSP Coin series.