Here, then, is her new case, MNEITH-GNOMON-10559. The name looks like nonsense until you know the framework into which it fits. Framing is everything, in filing as in investigative work. First of all, the label acknowledges that it is her case by logging it under her name. The actual ID number is the last part, "10559," but human beings give things names rather than numbers and this way the Witness can control what that name is, avoiding the inadvertent compromise of operations. The specific term, in this case "GNOMON," is randomly assigned from a list. "THE HUNTER CASE" would be less cumbersome, but there might be another case involving another Hunter, and it would not be appropriate to conflate them. "GNOMON" is there to avoid any kind of confusion: an incontrovertible statement of identity. Beyond that, it apparently means an early geometer’s tool for marking right angles, a set square made of metal. By extension it means something perpendicular to everything else, such as the upright part of a sundial. She finds the name itchily à propos , a handful of sand in her cognitive shoe. The Hunter case does stick out. She said that in the interview earlier, but only the channel known as TLDR is actually hosting the whole segment and so far no one has accessed the file. TLDR is basically an archive, paid for by donations from high-net-worth individuals who believe in archiving.