Counts, not percentages
The proof strip on this site is a row of counts — products in a catalogue, workflows in an estate, subscribers on infrastructure we own — rather than a row of percentages. It reads flatter, and it is the only version where we can show you how to check it.
What it rules out
No testimonial wall, and no results page with cohort averages, because there is no cohort we could describe honestly. Of the fourteen systems on the site, three link to a public URL you can open; the rest say "Private".
Most of what can be proved is unglamorous
"2,257 supplier photos matched on exact SKU" is not a headline. Anyone who has tried it recognises the problem on sight, which is a better filter than a percentage.
Make it a rule the build enforces
Every number has to trace to a metric on a case study or a stage in a system that shipped. A rule in a style guide gets broken by someone with a deadline; a rule the build checks does not.
The full argument is in why we publish our own numbers.