Obviousness

The request asks for an obviousness analysis of US patent 12238815 under 35 U.S.C. § 103, requiring the identification of combinations of prior art references that would render the claims obvious, along with a motivation for combining them.

The provided "Prior Art section" of the US12238815B2 Google Patents page contains "Prior art keywords: node, event, user, network, information" and a "Prior art date: 2007-02-02". However, this section does not list any specific prior art documents (e.g., patents, publications, or other disclosures) that predate the priority date.

Without specific prior art references to combine, a detailed obviousness analysis as requested, which requires identifying and explaining the combination of such references, cannot be performed. Therefore, I am unable to fulfill this part of the task.