Systems and methods for reinforced update package authenticity

A system for ensuring update package authenticity includes an update package transaction ledger and a repository. Change managers are configured to maintain the update package transaction ledger, create a transaction block using metadata of an update, and determine a package value based on the transaction ledger and on the update. The change managers also incorporate the package value and the update into a package, and upload the package to the repository. A client obtains the package from the repository, obtains the transaction block from the update package transaction ledger, determines a calculated value based on the transaction block and on the update, and compares the calculated value and the package value. The update is installed when the calculated value and the package value match.