Build the workflow as a claim-by-claim ledger: list every factual assertion in the memo, attach the source that supports it, verify that source against the original, check its identifier and update status, and assign each citation a confidence status before circulation. The steps below turn that ledger into a verified source set plus a short list of claims that need qualification.
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Extract claims into a ledger. Give each factual sentence in the memo its own row with three fields: the claim as written, the cited source, and the memo section. Result: no claim circulates without a named source.
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Verify each reference against the original source. ICMJE guidance advises authors to verify references against original sources and to cite direct sources where possible. Result: any citation that only points to a secondary summary gets flagged for replacement with the direct source or marked for qualification.
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Resolve each identifier. For a DOI, a lookup through the Crossref REST API returns the metadata deposited for that DOI, so you can confirm the title, authors, and publication details match what the memo cites. Result: mismatches between the memo's citation and the deposited record go on the qualification list.
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Check the record for updates. Crossmark provides a way for readers to check a publisher-maintained record for updates such as corrections, retractions, and other changes to a scholarly work. Result: any cited work with a correction or retraction is either replaced or explicitly qualified in the memo.
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Assign a confidence status. Use a small fixed set of labels, for example: verified (original source checked, identifier matched, no adverse update), qualified (source supports the claim only with a stated caveat), and unresolved (identifier or update status could not be confirmed). Result: each citation carries one status the reader can see.
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Write the qualification list. For every claim marked qualified or unresolved, record the specific gap and the next verification step, such as obtaining the direct source or confirming the record with the publisher. Result: the memo circulates with a verified source set and a short, explicit list of claims needing qualification.
Keep the ledger attached to the memo so reviewers can trace each status back to the check that produced it.