Neb. Rev. Stat. § 77-1812

The county treasurer shall keep a record showing in separate columns the number and date of each certificate of sale, the name of the owners or owner if known, the description of the real property, the name of the purchaser, the total amount of taxes and costs for which sold, the amount of subsequent taxes paid by the purchaser and date of payment, to whom assigned, and the amount paid therefor, name of person redeeming, date of redemption, total amount paid for redemption, name of person to whom conveyed, and date of deed.