Siacoin

What is Sia?

Sia is a decentralized storage platform that facilitates the creation of storage agreements between users. These agreements, known as contracts, establish terms between a storage provider and their client, specifying the data to be stored and its corresponding price. The storage provider must periodically demonstrate that they are maintaining the client's data.

These contracts are recorded on a blockchain, ensuring transparency and public auditability. Conceptually, Sia can be seen as a derivative of Bitcoin, incorporating support for storage contracts. Initially, Sia will be implemented as an altcoin but will eventually be financially linked to Bitcoin through a two-way peg.

Some other crypto projects that are also in the storage field: Internet Computer, Stacks, Bluzelle...

How Does Sia Work?

In the Sia network, users rent storage directly from each other instead of relying on a centralized provider. Sia itself only stores the storage contracts that define the terms between parties. When a storage provider (host) forms a contract, they commit to storing a client's data and providing proof of continued storage at regular intervals. Compensation is given for submitted proofs, while missing proofs result in penalties. The publicly verifiable proofs, available on the blockchain, allow network consensus to automatically enforce storage contracts. Clients are relieved of the need to personally verify proofs; they can upload their files, and the network takes care of the verification process.

Recognizing the limitations of relying on a single untrusted host for data storage, the recommendation is to store data redundantly across multiple hosts. Erasure codes are suggested for achieving high availability without excessive redundancy.

Initially implemented as a blockchain-based altcoin, Sia has future plans for supporting a two-way peg with Bitcoin, as outlined in the document "Enabling Blockchain Innovations with Pegged Sidechains."

Learn About Siacoin

Siacoins (SC) function as the utility tokens that drive the Sia network, playing a crucial role in all network activities. While primarily employed for facilitating network operations, Siacoins have diverse applications, including:

• Uploading Files: Siacoins are utilized to pay for storage when uploading files to the Sia network.
• Earning Siacoins: Users can earn Siacoins by storing data for others within the network.
• Transferring: Siacoins can be transferred by sending them to others or receiving them at one's wallet address.

For secure storage of Siacoins, users can employ the official software on a hardware or paper wallet. Acquiring Siacoins is initially straightforward, involving methods such as receiving them from someone, purchasing them on an exchange, or participating in mining activities.

To obtain Siacoins for various network activities, whether uploading files to the decentralized cloud or contributing extra storage space, users can receive Siacoins by creating a Sia wallet address, mining, or purchasing them through exchanges.

Siacoin Team Background

Sia originated in mid-2013 when David Vorick, a computer science student at Rensselaer Polytechnic Institute, conceived the idea. He shared it with Luke Champine, a college friend, who joined the project's development after its presentation at a HackMIT hackathon in September 2013. Officially named Sia in early 2014, referencing the Egyptian god of perception, the project was initially led by Nebulous, Inc. In 2021, The Sia Foundation, a registered non-profit, assumed stewardship of the project, taking on responsibilities like maintaining core protocols, supporting developers, promoting Sia, ensuring siacoin accessibility and safety, addressing network scalability, leading hardforks, and more.

Sia Project Development

Sia is thrilled to introduce version 1.0 of renterd, the successor to siad for managing storage rentals on the Sia network. The new version brings horizontal scalability by dividing renterd into three modules, each with its own API:

• Bus: Acts as the core of renterd, managing persistence via SQL and containing all consensus-related code.
• Worker: Communicates with hosts for tasks like uploading and downloading, operating in a stateless manner.
• Autopilot: An optional module that interacts with the Bus and Workers to automate tasks such as contract maintenance and file repairs.

While the default setup runs all modules within a single process, the significant improvement is the ability to achieve horizontal scalability by running them separately in a cluster. In this setup, a cluster can share one Bus, one Autopilot, and any number of Worker nodes.