I think this is the correct paper. As I noted on this page under the rank proximity swap values 1976-2010 section, “Each file contains income values to replace topcoded income components for every ASEC sample from 1975 to 2010. The purpose of this file, and the related file from Larrimore et al. (2008) (above), is to provide researchers with income data using a consistent topcoding method. We provide the Census Bureau revisions with IPUMS identifiers and income variable names.”
I’ve previously noted your feedback about the IPUMS CPS documentation on top-codes. These sorts of revisions take time to implement. We ask for your patience as we consider improvements.