Only 23% of citation chains reach a primary source

A [claim attribution study](/blog/saas-blog-claim-attribution-study) found that 24% of 574 SaaS blog claims cited no source at all. A [citation provenance study](/blog/saas-blog-citation-provenance-study) traced the ones that did: only 23% of citation chains reached a primary source. Every unsourced statistic in a published post is a variable worth testing: what happens to search performance when the borrowed number becomes a verified one?