Walrus | Secure Decentralized Storage

ABOUT WALRUS

Walrus is a decentralized storage network that stores and delivers raw data and media files—like videos, images, and PDFs—without sacrificing performance or accessibility. With Walrus, your data is always secure and available.

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Data storage and delivery on Walrus is…

Resilient

Nodes can fail and data remains accessible (up to ⅔ nodes for reads, up to ⅓ of nodes for writes)
Efficient replication factor ensures your data is secure

Scalable

Performance and capacity scales with each new node
More nodes equals higher throughput

Programmable

Storage space as tokenized asset
Smart contracts enable storage marketplaces and rental protocols

Secured by WAL

Staked WAL token used for governance and recovery coordination

Data lifecycle

In Walrus, the client orchestrates the data flow. Uploaded data is sent to a publisher that encodes and stores it securely. Metadata and proof of availability are stored on Sui, allowing users to leverage the composability, expressivity, and security offered by Sui and the Move programming language. Storage capacity can be tokenized and used as a programmable asset, allowing developers to integrate storage with apps on Sui. However, Walrus isn’t limited to Sui, it’s available to builders on other blockchains like Solana and Ethereum.

To access your data, the aggregator collects it from the storage nodes and then delivers it through a content delivery network (CDN) or read cache.

Walrus’ innovations

Red Stuff for low-overhead storage

Red Stuff, Walrus’ innovative encoding algorithm, breaks data into slivers for efficient storage. Allows for faster data access, increased resiliency, and scalability.

Incentivized proofs of availability

Proofs of availability are established upfront and confirmed via random challenges to reduce cost of proving file storage and ensure nodes maintain blobs.

*Storage proofs and attestation module

Tokenomics

Delegated Proof of Stake (dPoS) network

The dPoS system prevents sybil behavior, and uses the WAL token for governance and staking to incentivize effective network operation. Storage nodes must stake WAL to participate in the network.

Reliable data migration and recovery

Delegated Proof of Stake network ensures data recovery is possible even when nodes join, leave, adjust stake, or fail to cooperate. Nodes determine slashing penalties through governance to incentivize good behavior.