Before a document, photograph, recording, or physical object can be admitted, the proponent must produce enough evidence for a reasonable factfinder to conclude the item is genuine — that the contract is the one the parties signed, the email actually came from the sender, or the photograph accurately depicts the scene. This is a threshold showing, not a final determination of authenticity; the jury or judge ultimately weighs how convincing the evidence is.

Authentication can be established many ways: testimony from a witness with knowledge, comparison of handwriting, distinctive characteristics of the item itself, evidence of a process or system that produces reliable results, or chain of custody for physical evidence. Digital evidence increasingly requires its own authentication path — metadata, hash values, or testimony about how a file was collected and preserved — because copying and alteration are easy and hard to detect visually.

Juricratic tracks the provenance chain behind every ingested document and passage, so a simulated matter's evidence record already carries the source, extraction method, and chain-of-custody metadata an authentication argument would need, rather than treating a document as free-floating text.

Before trial, counsel identifies every exhibit that needs authentication, lines up the witness or foundation evidence to establish it, and stipulates with opposing counsel wherever possible to avoid contesting non-controversial items. Authentication disputes matter most for digital evidence, older records, and items obtained from a source other than the party itself.