Obscurity Level is a metric, assigned for the demonstration of knowledge of things obscure. The minimum level is 0, assigned to anyone who knows nothing about Obscurity Portal.

Obscurity Levels are usually designated as OLx, where x is the level number. If you are new to the Obscurity Portal, you are OL0.

Higher levels are obtained asynchronously, meaning there is no fixed set of facts you need to know in order to attain OL1. Instead, you have to contact the Title Granting Committee with an answer to a puzzle if the puzzle mentions that solving it will increment your level.