Small brands. Bah! Should'a been microdots.
(I suppose the more complicated the identifier, the harder it will be to access what ever information they "hold" further down the time stream.)
I wasn't sure if the guy she killed in Alec's apartment was working for Esher or the dothands... Although I'm reasonably sure that the show is not going to go meta and have Esher being a liar who is also in control of the dothands despite claiming that they are the opposition.