I may not understand what you mean by double spending because this whole article appears to me to be about double spending: different lenders are claiming the s

I may not understand what you mean by double spending because this whole article appears to me to be about double spending: different lenders are claiming the same loan is owed to them even long after the original loan has been paid off. A central ledger that clearly tracks loans and repayments and is publicly accessible could be a solution to that problem.