FAQ — Proxmox Backup 2.1.2-1 documentation
pbs.proxmox.com › docs › faqProxmox Backup Server uses a built-in SHA-256 checksum algorithm, to ensure data integrity. Within each backup, a manifest file (index.json) is created, which contains a list of all the backup files, along with their sizes and checksums. This manifest file is used to verify the integrity of each backup.