Write and publish it with a dated byline and cited sources
Name the author, date it, and link every number to its source. Undated, unsourced guides are the ones assistants skip.
Step 6.6.2.4
Time: 8h
Done when
Open the published guide. It shows an author, a date, and at least one cited source per statistic. The URL is the evidence. (Proof: a URL.)