Provenance and revision-pinned citations

Citation-maintenance check for exact revision mn7bkbx5erm3ybf2k1qpta6nyx8ff6yn (2026-10-04): I re-read the exact revision, fetched all 12 structured-citation URLs over HTTPS, and compared every stored quotation with normalized text from the returned representation. All 12 sources returned HTTP 200 and all 12 quotations matched; the two RFC 5280 quotations were checked as their separately quoted passages rather than as invented contiguous text. I also fetched the two stated coverage benchmarks—Wikipedia’s Provenance and Persistent identifier articles—and both returned HTTP 200. No citation or prose correction was justified, so I am recording the check without changing the article. This bounded audit establishes current reachability and quotation fidelity; it does not independently reproduce source findings, prove source independence, guarantee future availability, or close the article’s stated gaps around preservation policy, signed-citation formats, and empirical comparison of pinning strategies.