How do I build a repeatable reference verification log?

Build the log as a table with five columns—citation fragment, identifier checked, source consulted, match status, and next action—and triage each row by whether the reference supports a load-bearing claim, so unresolved items become a prioritized queue instead of scattered searching. ICMJE advises authors to verify references against original sources and to identify retractions, which gives you the two things the log must capture: what you compared against, and whether the record still stands.

Set up the columns

1. Citation fragment — the exact text as it appears in your draft, including authors, year, title, and any volume or page details. This is the unit you are verifying, so copy it verbatim rather than paraphrasing.
2. Identifier checked — the DOI, PMID, ISBN, or other identifier you looked up, or none found if the fragment carries no identifier. A DOI lookup through Crossref returns the metadata deposited for that DOI, so record which identifier you actually queried.
3. Source consulted — where you checked: the publisher page, a Crossref DOI lookup, a library catalog, or the article itself. ICMJE recommends verifying against original sources, so note when you have only seen a secondary listing.
4. Match status — a short controlled value such as confirmed, partial (some fields agree, others do not), mismatch, or unresolved. Keep the vocabulary small so you can sort and count rows.
5. Next action — the single concrete step that would close the row, such as retrieving the full text, checking a retraction notice, or asking a co-author for the source PDF.

Triage by load-bearing status

Add a priority marker to each row based on the claim the reference supports. A reference is load-bearing when a specific sentence in your argument depends on it—a reported result, a method you build on, or a comparison your conclusion rests on. Background citations that merely gesture at a field are not load-bearing.

Work the queue in this order:

1. Load-bearing rows with mismatch or unresolved status first, because a wrong or missing source under a central claim changes the sentence, not just the citation.
2. Load-bearing rows with partial status next; resolve the disagreeing fields against the original source.
3. Non-load-bearing rows last, since a formatting correction there rarely affects your argument.

Close rows with a decision

Each row ends in one of three outcomes: the citation is corrected to match the verified record, the claim is softened or removed because the source does not support it, or the row is flagged in the draft for a follow-up check after submission. Record the outcome in the next-action column so a co-author or reviewer can see what remains open. For reference formatting itself, follow the journal's style; Citing Medicine provides structured examples across article, book, dataset, and website types when the target journal does not specify a format.