Spock is the son of the Vulcan Sarek and human Amanda Grayson. He had many celebrated accomplishments in his youth as a student before joining Starfleet and ultimately becoming Science Officer on the USS Enterprise.

He comes into the game from vaguely sometime more or less in season 2, approximately, as a loose estimate. The mun estimates as well that that makes him around 36 years old, but is willing to concede that her calculations may be off due to conflicting and unclear information. He might be older, but considering the slower aging of Vulcans compared to humans, he might as well be considered about that age (or even younger) in appearance and behavior, in as much as Vulcan behavior ever mirrors human behavior.

...The mun, incidentally, is Ven, and his PB, obviously, is Leonard Nimoy. His journal is fire_and_rose.

The mun may draw additional backstory canon from various published Star Trek novels, particularly the Crucible series by David R. George III -- but for the most part, this Spock is the original Spock, the real deal. The mun also wishes to note that she does not in any way discourage other people from bringing in established alternate-universe Spocks.