{"id":633,"slug":"rule-capture-archive-snapshot-at-citation-time","title":"RULE: Capture an archive snapshot (Perma.cc / archive.org) at the moment of citing any web source. Quote verbatim.","kind":"rule","scope":"business","status":"current","audiences":["claude-code","dev","candid-team"],"topics":["agency-methodology","longevity-architecture","citation-practices"],"reference_body":"**Rule:** At the moment of citing any web source in Candid content, **capture an archive snapshot** (Perma.cc preferred; archive.org Save Page Now as fallback). Include both URLs in the citation. **Quote the source verbatim** (≤25 words) so the claim survives link death.\n\n**Why:**\n- NYT link half-life is ~15 years with 13% content drift even on \"live\" links ([[nyt-link-half-life-15-years-13pct-content-drift]])\n- Zittrain Harvard Law 2014: 50% of US Supreme Court opinion links, 70% of Harvard Law Review links broken ([[zittrain-reference-rot-supreme-court-2014]])\n- A footnote with \"source: example.com/article-123\" leaves no recovery path when the URL dies; a footnote with a verbatim quote remains searchable in archives forever\n\n**How to apply:**\n- Workflow: cite → snapshot (one click in Perma.cc browser extension) → verbatim quote into the citation\n- Format: *\"...[verbatim quote]...\" (Source, Date — [original URL](https://...) | [archived](https://perma.cc/...))*\n- For research-brief and KB entries: archive every primary source on first use\n- For marketing pages citing sources via the KB: the KB entry is the archive layer; marketing pages link to the KB\n- Quarterly link-checker pass per [[link-rot-mitigation-9-step-plan]]\n- Candid-authored research artifacts get DOIs via Zenodo (free)","rationale_body":null,"metadata":null,"links":{"outgoing":[{"slug":"nyt-link-half-life-15-years-13pct-content-drift","title":"Link rot: NYT external links 1996-2019 show ~15-year half-life; 13% of \"live\" links no longer point to original content","kind":"reference","scope":"business","link_type":"depends-on"},{"slug":"zittrain-reference-rot-supreme-court-2014","title":"Zittrain et al. (Harvard Law 2014): 50% of URLs in U.S. Supreme Court opinions suffer reference rot","kind":"reference","scope":"business","link_type":"depends-on"},{"slug":"link-rot-mitigation-9-step-plan","title":"CANDID REFERENCE: 9-step link-rot mitigation plan — archive on capture, verbatim quote, persistent IDs, quarterly check","kind":"reference","scope":"business","link_type":"depends-on"}],"incoming":[{"slug":"research-brief-confidence-sources-dated-claims","title":"Research brief: Confidence Levels, Sources, and Dated Claims — why every statement on a credible site should be verifiable (piece 15 of 15)","kind":"reference","scope":"business","link_type":"relates-to"}]},"created_at":"2026-05-22T20:51:27.065Z","updated_at":"2026-05-22T20:51:27.065Z"}