Siacoin (SC) Price Today & Live Chart

What is Siacoin?

Siacoin (SC) is the native utility token of Sia, a decentralized cloud storage platform that enables users to rent and provide storage space in a trustless, peer-to-peer marketplace. Sia was conceived in 2013 at HackMIT by David Vorick and Luke Champine, who went on to found Nebulous Inc. (later rebranded as Skynet Labs) to develop the protocol. The Sia network officially launched on June 7, 2015, making it one of the earliest operational decentralized storage projects, predating competitors like Filecoin and Storj's rebuilt network. Unlike traditional cloud providers such as Amazon S3, Google Cloud, or Microsoft Azure, Sia does not hold customer data on centralized servers — instead, files are encrypted client-side, split into 30 redundant segments using Reed-Solomon erasure coding, and distributed across a global network of independent hosts.

The economic backbone of the network is built around smart contracts called file contracts, which lock up Siacoin as collateral from hosts and payment from renters. This collateral-based model incentivizes hosts to maintain uptime and data integrity, since they forfeit their SC stake if they fail to prove storage via periodic Merkle proofs. Sia uses a Proof-of-Work consensus mechanism based on the Blake2b hashing algorithm, and in 2018 the team released the Obelisk SC1 ASIC to counter mining centralization by Bitmain's Antminer A3, an event that led to a controversial hard fork in November 2018 to invalidate non-Obelisk ASICs — a pivotal and divisive moment in the project's history.

The broader ecosystem expanded significantly with the launch of Skynet in 2020, a decentralized content delivery and application hosting layer built on top of Sia. Although Skynet Labs shut down its hosted Skynet portals in 2022 due to funding constraints, the underlying Sia protocol continued under the stewardship of the Sia Foundation, a nonprofit established in 2021 and funded by a protocol-level block subsidy. The Foundation, led by David Vorick, has since focused on developer tooling, releasing renterd, hostd, and walletd — modular daemons designed to make Sia easier to integrate into business applications and S3-compatible workflows.

Notable integrations include Filebase, which offers S3-compatible gateways backed by Sia storage, and various backup tools that support Sia as a storage backend. The network has positioned itself as a cost-competitive alternative, with storage pricing historically 5-10x cheaper per terabyte than AWS S3. Controversies around Sia have included the ASIC fork backlash, Skynet's commercial struggles, and debates within the community about whether to migrate to Proof-of-Stake — a proposal that has been discussed but not implemented. Today, Siacoin trades on major exchanges including Binance, KuCoin, and Gate.io, and the project remains an actively developed, fully operational alternative to centralized cloud storage with a loyal niche following among privacy advocates, archivists, and cost-sensitive enterprises.

Key Features of Siacoin

• Decentralized Storage Marketplace: Sia creates an open marketplace where any participant can offer or rent storage capacity without a central intermediary. Prices are determined by supply and demand between renters and hosts, enabling rates that are often a fraction of AWS, Azure, or Google Cloud pricing.
• End-to-End Encryption: All files are encrypted client-side using Threefish before leaving the user's device, meaning hosts never have access to unencrypted data. This zero-knowledge approach guarantees privacy even if individual hosts are compromised or malicious.
• Redundant Erasure Coding: Files are split into 30 segments using Reed-Solomon erasure coding, with any 10 segments sufficient to reconstruct the original. This means data remains accessible even if two-thirds of the hosts storing your file go offline simultaneously.
• Collateralized File Contracts: Hosts must lock Siacoin as collateral when agreeing to store data, which they forfeit if they fail to submit valid storage proofs on the blockchain. This cryptographic accountability aligns host incentives with renter expectations without requiring trust.
• S3-Compatible Gateways: Through the renterd daemon and partners like Filebase, Sia supports S3-compatible APIs that let developers migrate existing applications with minimal code changes. This makes Sia a practical drop-in alternative for teams already using Amazon S3 tooling.

Siacoin Use Cases

• Decentralized Cloud Storage: Individuals and businesses can use SC to pay for encrypted, distributed file storage at prices significantly below centralized providers. This is particularly valuable for cold storage, archives, and datasets where long-term cost efficiency matters.
• Hosting and Earning SC: Anyone with spare disk space and bandwidth can run the hostd daemon to become a Sia host and earn Siacoin for storage contracts. Hosts set their own pricing and can monetize otherwise idle hardware while contributing to network capacity.
• Website and App Hosting: Developers can use Sia-backed platforms to host static websites, media assets, and decentralized applications without relying on AWS or Cloudflare. Content stored on Sia remains accessible as long as the underlying contracts are renewed.
• Enterprise Backup Solutions: Companies handling sensitive data, such as healthcare or legal firms, can leverage Sia's encrypted, geographically distributed storage for regulatory-grade backups. The network's redundancy and privacy model reduce exposure to single-vendor outages and data breaches.
• Media Archival and NFT Storage: Artists, podcasters, and NFT creators use Sia to archive high-resolution media and preserve digital assets long-term. The cost-per-terabyte advantage makes it viable to store large creative libraries that would be prohibitively expensive on traditional cloud services.

Siacoin Tokenomics

Total Supply

Siacoin has no fixed maximum supply; it follows a disinflationary emission schedule with block rewards that decrease over time. The circulating supply exceeds 57 billion SC as of recent snapshots, making it one of the higher-supply mid-cap cryptocurrencies.

Circulating

There was no ICO or premine — all Siacoin in circulation was mined or distributed via block subsidies to the Sia Foundation after the 2021 soft fork. Dynamic — see CoinGecko for live figures.

Utility

SC is used by renters to pay hosts for storage and bandwidth, and by hosts as collateral locked into file contracts. It is also used to fund the Sia Foundation via a dedicated block subsidy that sustains protocol development.

Emission

Block rewards began at 300,000 SC and decrease by 1 SC per block until reaching a floor of 30,000 SC per block, issued roughly every 10 minutes. Additionally, 30,000 SC per block is directed to the Sia Foundation's treasury to fund ongoing development.

How to Buy Siacoin

1. 1

   1. Create a Binance Account

   Visit binance.com or download the Binance app and register with your email or phone number. Complete identity verification (KYC) by uploading a government-issued ID and a selfie through the Identification section in your account dashboard, which is required before you can trade Siacoin.

2. 2

   2. Deposit Funds

   Navigate to Wallet → Fiat and Spot → Deposit to fund your account. You can deposit USD, EUR, or other supported fiat via bank transfer or card, or transfer USDT/BTC from another wallet using the Crypto Deposit option and selecting the correct network to avoid loss of funds.

3. 3

   3. Locate the SC Trading Pair

   Click Trade → Spot in the top navigation and search for 'SC' in the markets sidebar. Select the SC/USDT pair, which is the most liquid Siacoin market on Binance, or choose SC/BTC if you funded your account with Bitcoin.

4. 4

   4. Place Your Order

   On the SC/USDT trading interface, choose between a Market order for instant execution at the best available price or a Limit order to set your target entry price. Enter the amount of SC you want to buy or the USDT amount to spend, then click the green Buy SC button to execute.

5. 5

   5. Secure Your Siacoin

   After purchase, your SC will appear in your Spot Wallet under Wallet → Fiat and Spot. For long-term holding, withdraw to a non-custodial Sia wallet such as the official Sia-UI or walletd by clicking Withdraw, selecting the Siacoin network, and pasting your external wallet address.

Frequently Asked Questions