A system, method and program product are provided for implementing a credibility vouching system (CVS). A CVS is disclosed that includes: credibility vouching system (CVS), comprising: a data aggregation system interface that provides a communication pathway for receiving event metadata (EM) records from a data aggregation system; a service provider interface and inquiry system that provides a communication pathway with a plurality of third party service providers to facilitate identification of a set of candidate nodes potentially responsible for a submitted EM record in the data aggregation system; a vouching request routing system for generating a vouching request and tasking at least one third party service provider to forward the vouching request to the set of candidate nodes; and a credibility scoring system that generates a credibility score for the submitted EM record based on a set of vouching responses received from the set of candidate nodes.
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