At the core of Walrus is Red Stuff, a two-dimensional erasure coding protocol that achieves high security with only 4.5x replication factor, while enabling self-healing recovery that requires bandwidth proportional to only the lost data (𝑂(|𝑏𝑙𝑜𝑏|/𝑛) versus 𝑂(|𝑏𝑙𝑜𝑏|) in traditional systems). Crucially, Red Stuff is the first protocol to support storage challenges in asynchronous networks, preventing adversaries from exploiting network delays to pass verification without actually storing data.
Walrus also introduces a novel multi-stage epoch change proto-col that efficiently handles storage node churn while maintaining
uninterrupted availability during committee transitions. sys-tem incorporates authenticated data structures to defend against malicious clients and ensures data consistency throughout storage and retrieval processes. Experimental evaluation demonstrates that Walrus achieves practical performance at scale, making it
suitable for a wide range of decentralized applications requiring high-integrity, available blob storage with reasonable overhead.