Timely images

These are the graphs that have to be changed each time the lecture is presented. The newest images should not have any date suffix; a date suffix is only added when a newer image is being added.

From the course introduction slide set:

From the overview slide set. These should be exported as svg if possible; if not, then 1200x600 rasterized and converted to webp (running make will covert .png files to .webp).

From the Bitcoin slide set

From the Scalability slide set.