---
title: "SOS: Full-Object Checksums for Multipart Uploads"
date: 2026-02-03
tags: ["Improvement","SOS"]
url: https://changelog.exoscale.com/sos-full_object-checksums-for-multipart-uploads/
---
# SOS: Full-Object Checksums for Multipart Uploads

<p class="">SOS now supports full-object checksums for multipart uploads using CRC32C, CRC64, and CRC64NVME. This allows you to verify the integrity of large objects end-to-end, without re-reading all parts again. As a result, integrity checks are faster, cheaper, and better suited for backup and compliance workloads.</p>

[Read our documentation](https://community.exoscale.com/product/storage/object-storage/how-to/checksum/)