Which task is fundamentally linked to ensuring the credibility of a deposition transcript?

Notarizing the signer’s oath is fundamentally linked to ensuring the credibility of a deposition transcript because it serves as a formal verification that the individual providing testimony has sworn to tell the truth. This process is crucial because it adds a layer of authenticity and legal weight to the transcript. When a notary public witnesses the signing of the oath, it indicates that the testimony can be trusted and is valid, which is essential in legal proceedings.

While other tasks listed, such as summarizing the deposition content, recording audio of the deposition, and proofreading the document, contribute to the overall quality and accuracy of the transcript, they do not directly enhance its legal credibility in the same way that notarization does. Summarizing might provide an overview, but it doesn't validate the truthfulness of the testimony. Audio recordings are valuable for reference and accuracy but are not legally binding. Similarly, proofreading ensures that the document is error-free but does not address the authenticity of the witness's statements.