How to find probit?

Excuse me, could you please elaborate on how one might go about finding Probit? I'm curious as to whether it's a specific cryptocurrency, a platform, or a service that I'm looking for. Are there any specific steps or resources I should be utilizing in my search? Additionally, is Probit widely known and easily accessible, or is it a lesser-known entity that might require some digging to uncover? Thank you in advance for your guidance.