However, the format is very similar to internal document tracking numbers used in archives or specific patent databases. It is possible this is:
: Often found in digital archives like The National Archives or PACER for court filings. 13426-0295473
: Some older patent classification systems use similar hyphenated strings. However, the format is very similar to internal
: A unique identifier for a university-specific database (like a thesis ID). 13426-0295473
That specific ID, doesn't appear to be a standard identification number (like a DOI, arXiv ID, or PMID) for a widely indexed academic paper.