How to verify company claims in EDGAR without getting fooled by the exhibit type

Before you trust a company claim, lock three basics first: filing date, form type, and source type. In EDGAR, those metadata decide how you read the text, not the other way around.

The Pretium EX-99.1 shows why date discipline matters: the filing date is not the same thing as the report’s effective date, so a claim can be technically old even when the filing is new^[1][2][3].

That same EX-99.1 can confirm the exhibit label, filename, report title, named authors, project, and that it was prepared to comply with S-K 229.1300^[4][5]. But it cannot by itself prove legal title, completed transactions, reserves, or that projections will come true^[6].

For technical-report material, the Lithium Argentina excerpt can confirm the report’s own subject matter and that it is framed as a scoping study prepared for S-K 229.1300 compliance^[7][8]. It cannot confirm filing date, form type, or EX-10 or XBRL hooks from the excerpt alone^[9][10].

Inline XBRL is different: the viewer lets you inspect tagged facts with highlight borders, the Fact Review Window, search, and filtering^[11][12][13]. It can confirm what is tagged, but not an untagged narrative claim on its own^[14][15].