Sia is reinventing cloud storage. Our technology connects users who need file storage with hosts worldwide offering underutilized hard drive capacity. Blockchain technology secures their data and enables improved economics for users and hosts.
The Sia blockchain allows this marketplace to run without an intermediary. Sia secures storage transactions with smart contracts, creating a more reliable and affordable offering when compared to traditional cloud providers. No one person or organization can censor or deny access to data—not miners, not developers, nor any government. We believe Sia’s distributed, decentralized storage technology is stronger, more secure, more efficient, and more equitable for the entire ecosystem.

We believe that neither individuals nor institutions should be beholden to large corporations. Sia was created to promote and safeguard users’ freedoms. It’s our attempt to bring decentralized storage built on blockchain technology to the mainstream without sacrificing price or performance.

Our long term goal is for Sia to become the backbone storage layer of the Internet.

Nebulous, Inc. was established in 2014 and launched the Sia Storage Platform in 2015. Based in Boston, Nebulous is funded by Raptor Group, First Star Ventures, Fenbushi Capital and INBlockchain.




Blockchain technology is demanding new, innovative business models. When designing the Sia network, we worked to ensure that incentives are focused on long-term product development and growth.

This effort led us to build two complementary cryptocurrencies: Siacoin and Siafunds. Siacoin is a utility token that allows users to buy and sell storage space on the Sia network. It was never used for fundraising, and is mined via proof-of-work on ASICs to ensure security and decentralization.

Siafunds pay out a real-time transaction fee from all storage-related payments on the network. This means that, if you hold one of the 10,000 Siafunds in existence, you receive a piece of this transaction fee as users pay for storage space.

Because Siafunds only generate revenue when users pay for storage, holders are incentivized to take a long-term view and directly contribute to product development and growth.




Up to 750 Siafunds will be made available to qualified investors through a modified Dutch auction, which will open on April 16. For information about the auction, click the Private Placement Memorandum button above. To determine if you are a qualified investor, and to register to participate in the auction, click on the Register button above.

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Token Sale
  • Main Sale Start
    April 16, 2019
Asset Description

Siafunds do not have any utility. Their value is derived from the fact that they entitle their holders to a fixed portion of the revenue generated by the Sia network. As a result, we intent to treat the Siafunds as securities under U.S. federal and state securities laws. We have structured the sale of Siafunds in this Tokenized Security Offering to comply with U.S. federal and state securities laws. Specifically, we plan to sell Siafunds to “accredited investors” under an exemption from registration provided by Regulation D of the Securities Act of 1933, as amended.

Token Details
  • Ticker
Investor Requirements
  • Whitelist / KYC / AML
    Whitelist, KYC Required
  • Allowed Areas
    Allowed only citizens from Australia, Canada, France, Germany, Israel, Russia, United Kingdom, United States
Company Profile
  • Legal Name
    Nebulous, Inc.
  • Registered Office
    Nebulous, 280 Congress Street, Floor 12, Boston, MA 02210
  • Affiliated Companies
    Raptor Group, First Star Ventures, Fenbushi Capital and INBlockchain

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