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Siacoin (SC) is an open-source cryptocurrency and a decentralized storage platform secured by blockchain technology. The Sia Storage Platform leverages underutilized hard drive capacity around the world to create a data storage marketplace that is more reliable and lower cost than traditional cloud storage providers. Siacoin uses the Blake2b hash.


Completely Private

Sia encrypts and distributes your files across a decentralized network. You control your private encryption keys and you own your data. No outside company or third party can access or control your files, unlike traditional cloud storage providers.


On average, Sia's decentralized cloud storage costs 90% less than incumbent cloud storage providers. Storing 1TB of files on Sia costs about $2 per month, compared with $23 on Amazon S3.

Highly Redundant

Sia distributes and stores redundant file segments on nodes across the globe, eliminating any single point of failure and ensuring uptime that rivals traditional cloud storage providers.

Blockchain Marketplace

Using the Sia blockchain, Sia creates a decentralized storage marketplace in which hosts compete for your business, which leads to the lowest possible prices. Renters pay using Siacoin, which can also be mined and traded.


Sia UI
Official Desktop Wallet [Windows/Mac/Linux]
Sia Daemon
Official Desktop Wallet [Windows/Mac/Linux]

External Links

Official Website