Abstract: Availability of recycled auto parts listed in a centralized inventory system is verified by a query to the inventory system carrying the part. The query identifies the part and data about the part of relevance to a potential buyer (such as price, condition, location) to be verified. Verifications can be performed upon explicit user request, or upon actions implicitly requiring verification, such as adding a part to an estimate or shopping cart, ordering a part, or requesting the part seller to hold the part for future purchase, or the like; verification may also be automatically performed for some or all search results. Results of a verification may also be broadcast to the potential buyer and to the part seller (broker and/or part supplier) to enable audit and follow-up on the verification request.