SIA is a decentralized cloud storage platform using blockchain technology. Compared with traditional cloud storage methods, the decentralized Sia system can make cloud storage safer, faster, and lower cost. Through erasure coding, encryption, and block chain, Sia not only has traditional cloud storage functions, but also solves the security and privacy problems of traditional cloud storage. Servers where users provide storage space can receive Siacoin (cloud storage coin) – the built-in token of the Sia system, so as to encourage more idle space to become storage space providers. Users can use Siacoin to rent or sell storage space. SC2 (full name SiaCore) was changed to SC (full name Siacoin) on December 20, 2018.

1. Project introduction

Sia is a decentralized cloud storage project developed by Nebulous Labs, which is currently in operation. Sia strives to be the leading decentralized cloud storage platform that promotes and protects user freedom.

In Sia's value proposition, decentralization and anti-censorship are very important components. There is no need to register personal information or trust a third party to store or provide storage services on its platform. Sia will take advantage of underutilized hard disk capacity to provide better economics for users and hosts, so the Sia team created and sold ASIC mining machines for mining Siacoin (SC).

Sia's storage market is completely decentralized. Storage prices are determined by the supply and demand relationship between file storage demanders (customers) and file storage providers (storage miners) in the market. Sia ensures storage transactions through smart contracts. It should be noted that we also mentioned in the previous introduction that whenever a user and a hosting service provider sign a contract on Sia, the hosting service provider must deposit a deposit to ensure good service, while the user needs to pay for the service , Sia software will charge a 3.9% commission on deposits and user expenditures, and pay them to holders of Siafunds, of which Siafunds is the secondary token of the Sia protocol and 90% is held by Nebulous Labs.

Saicoin issuance rules are 1 block every 10 minutes, and each block rewards 30,000 saicoin tokens. Initially, 300,000 saicoins were used to start, and after the 270,000th block, blocks will be produced constantly and the number will never be capped. According to calculations, it is estimated that by July 2020, when the block height reaches 270,000, the SC circulation will reach 44.55 billion, and there will be an increase of about 1.54 billion tokens per year thereafter.

Two. Comments

Sia was originally designed for one purpose: to make cloud storage decentralized. On this platform, users can store and retrieve various files without worrying about file privacy and security. By using encryption technology, encrypted contracts, and repeated backups, sia can enable a group of computer nodes that do not trust each other and do not understand each other to unite into a cloud storage platform with unified operating logic and programs.

This platform will be faster, cheaper, and more reliable than traditional cloud storage platforms. Because these mutually distrusting computer nodes are distributed around the world, Sia can be an effective distribution network for files and their contents at no added cost. File uploaders are free to choose which nodes they use, which means they can avoid nodes in a certain area, or use only those nodes they think are trustworthy.

Decentralization refers to dividing an uploaded file into many small blocks and storing each small block on a different computer node. Among the nodes that store files, only a small number of nodes are trustworthy to make uploading files safe and reliable.

Related links:
https://sia.tech/
https://sia.tech/sia.pdf
https://info.binance.com /cn/currencies/siacoin
https://www.chainnews.com/articles/229476750539.htm
https://www.okex.com/academy/zh/okex-researchtokengazer-report-on-the -decentralized-cloud-storage-industry-cn/
https://bihu.com/article/1117371856