retraction_status
Check if a paper is retracted or withdrawn via PMC's flag and Crossref notices; reports unverifiable when sources don't answer.
Instructions
Is the paper retracted? Reads PMC's is_retracted flag and Crossref's notices.
Retraction, withdrawal and removal notices count; corrections do not; an expression of
concern is reported separately. NOT_RETRACTED_AS_OF means no retraction notice was found
in the sources consulted, as of its date; it needs the identifier to have resolved and
every consulted source to have answered, otherwise the status is UNVERIFIABLE. A paper PMC
does not hold is checked on Crossref alone, and one with no known DOI on PMC's flag alone;
sources shows which answered. For a paper outside PMC, pass its DOI. Not logged.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| identifier | Yes | One paper: a DOI ("10.1590/1516-3180.2016.1344090516" or a doi.org URL), a PMCID ("PMC10496602") or a PMID written with its cue ("PMID 27355798") |
Output Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| as_of | Yes | For NOT_RETRACTED_AS_OF: the date of the earliest check; no retraction notice was found in the sources consulted as of then | |
| reason | Yes | ||
| status | Yes | ||
| concern | Yes | An expression of concern is on record | |
| sources | Yes | ||
| identifier | No |