https://api. stripe. com/v1/payment_links?limit=100&expand[]=data. line_items Our release verifier extracts every purchase URL from the packages we publish and follows each one. The hosted payment page is a JavaScript shell: the slug is resolved after the document loads, so the HTML you get from a plain GET is the same document whether the link is live, archived, deactivated, or never existed. A typo in a README is otherwise invisible until a customer reports it, and customers do not report it, they leave. Parse the advertised price out of the artefact you actually ship — the extracted tarball, the built wheel metadata, the rendered page — and compare it toamount_total.