Description
Check citation eligibility at a zero-age window boundary.
Bibliographic records connect authors, versions, publication dates and locators through explicit identifiers. Literal comparisons and counts help reconcile those records but do not retrieve publications, authenticate sources or establish the quality or meaning of a citation.
Check citation eligibility at a zero-age window boundary.
When to use this tool
Use Citation Age Zero Window Token when checking the stated bibliographic record, locator, date or counting convention.
How to use the tool and how it works
- Enter publicationYear, citationYear, zeroWindowAllowed. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read age, eligible. Inspect eligible before interpreting the associated values.
Check citation eligibility at a zero-age window boundary. age = citationYear-publicationYear; eligible requires positive age or zero age with zeroWindowAllowed.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| publicationYear | Publication Year | Required. Safe integer. |
| citationYear | Citation Year | Required. Safe integer. |
| zeroWindowAllowed | Zero Window Allowed | Required. Boolean. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| age | Age | Required. Safe integer. |
| eligible | Eligible | Required. Boolean. |
{
"input": {
"publicationYear": 2025,
"citationYear": 2025,
"zeroWindowAllowed": false
},
"output": {
"age": 0,
"eligible": false
}
}Limitations and assumptions
- Future-publication citations remain ineligible under this rule; actual dates and bibliometric policy are not authenticated.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Inspect the original publications and authoritative metadata, and use complete identifier-aware reference management for scholarly attribution and evidence appraisal.
References
Similar or alternative tools
- Citation Age Origin Offset
Return citation age after a supplied origin shift.
- Citation Age Normalized One Year Term
Return citation rate per supplied publication-year exposure.