Citation Checker

Use this when checking up to four public DOI/claimed-title pairs for exact normalized title agreement and recorded updates. Distinguishes malformed DOI, Crossref not-found, source errors and title mismatch. Does not infer research quality, clinical validity or approximate title equivalence. At most four parallel bounded public metadata requests; no inputs are retained. Inputs are processed temporarily and are not stored by this service. Supply only the fields required for this task; do not include personal account details or credentials.

audit_citations

Open Citation Checker's interactive workspace when the user wants to enter inputs, compare results, or work beside the conversation. This opens the interface without executing a data task.

open_app

Use this when finding up to five Crossref metadata candidates from a public paper title or bibliography phrase. Candidates do not establish a correct citation or valid research. Select a DOI and fetch or audit it. The query is sent to Crossref and is not retained by this service; do not send unpublished or personal content. Inputs are processed temporarily and are not stored by this service. Supply only the fields required for this task; do not include personal account details or credentials.

search

Use this when reading a selected DOI's public title, date and recorded updates. updated-by describes updates to this work; update-to is a separate reverse relation. Missing update records do not prove the work is unretracted or valid. One bounded Crossref request, no full-text retrieval or stored inputs. Inputs are processed temporarily and are not stored by this service. Supply only the fields required for this task; do not include personal account details or credentials.

fetch