Hey bro! Those white hairs are called "stigmas." Stigmas appear and indicate the plant's sex, so you've got a girl, bro! Stigmas are the first sign of the flowering stage, usually showing up during pre-flower. To put it simply - you've got a girl and she's started to bloom! 👌 Congrats, bro! 👌😇👍 Good luck with the flowering! 👋