# \#rant

**URL:** https://discuss.ipfs.tech/tag/rant/156.md

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## [Uploading CARs and user generated CIDs](https://discuss.ipfs.tech/t/uploading-cars-and-user-generated-cids/17592)

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**Author:** [@danieln](https://discuss.ipfs.tech/u/danieln)\
**Replies:** 14\
**Last updated:** [April 14, 2026, 3:04pm UTC](https://discuss.ipfs.tech/t/uploading-cars-and-user-generated-cids/17592 "2026-04-14T15:04:42Z")

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TL;DR: CARs are a great way to ensure end-to-end integrity for user uploads, but working with them is hard and they aren’t broadly supported. Why CAR uploads matter? As part of the Dapps Working Group, we spend a lot of…