In 7.1.5, there will be a catch up mechanic to get up to artifact knowledge 10 or so.
What you can do now on new alts (any that is below artifact knowledge 10) is to keep doing your [Artifact Research Notes]. But DO NOT consume them. Save them for 7.1.5, do the catch up Q/event/whatever, which gives you artifact knowledge 10, then consume your research notes which should give you the extra amount levels depending on how many you saved up.