The Problem:
* WhatsApp: Let me store this meme 50 times, once per chat.
* Telegram: Same file? 50 different copies, coming right up!
* Signal: Privacy first! (But also 50 copies of the same file)
* iMessage: We're Apple, we don't need efficiency
Meanwhile, deduplication has existed since: 1970s: Manual deduplication (removing duplicate customer records)
* 1990s: Early automated deduplication in backup/archiving systems
* 2000s: Commercial deduplication products (Data Domain 2003-2004), Git (2005), cloud storage (Dropbox, Google Drive)
* 2010s: Content-addressed storage (IPFS 2014-2015), advanced deduplication in virtualization
So why don't chat apps use it?
Centralized control: They want to track who has what
Vendor lock-in: Duplicate storage = more server costs = more dependency
Privacy theatre: We encrypt! (but still store 50 copies)
Legacy architecture: Built before deduplication was mainstream
Monetization: More storage = more infrastructure = more revenue
The ZKIM difference:
Content-addressed storage with deduplication. Same file? One copy. Encrypted? Yes. Private? Yes. Efficient? Absolutely.
ZKIM: One hash, one copy, infinite references.
Welcome to the future which could have existed a decade ago.
We would love to have you on our social media accounts. And happy to answer your any questions.
[https://reddit.com/r/zkim](https://reddit.com/r/zkim)
[https://x.com/zkdotim](https://x.com/zkdotim)
**Also, you can learn more from our whitepapers and blogs**
[https://zk.im/blog/](https://zk.im/blog/)
[https://zk.im/whitepaper/](https://zk.im/whitepaper/)