The International Conference for High Performance Computing, Networking, Storage, and Analysis
The International Conference for High Performance Computing, Networking, Storage, and Analysis
Poster Type: ACM Student Research Competition, Undergraduate
Author: Arnav Sirigere (Illinois Institute of Technology), Varvara Bondarenko (Illinois Institute of Technology), Ioan Raicu (Illinois Institute of Technology)
Supervisor: Ioan Raicu (Illinois Institute of Technology)
Abstract: Proof-of-work blockchains, like Bitcoin, consume substantial energy, motivating greener alternatives such as proof-of-space (PoSp), which relies on storage rather than computation. Existing PoSp implementations face scalability challenges due to high memory and I/O requirements, especially when generating large plots needed for fast lookups.
We present VaultX Merge, a novel out-of-memory PoSp plot generation method. VaultX Merge first creates multiple small in-memory subplots and then merges them into large plots, reducing redundant storage I/O, minimizing data size, and improving lookup latency. Our approach enables efficient operation across a range of devices, from small nodes like Raspberry Pis to high-end servers.
In our poster, we will demonstrate VaultX Merge’s performance across different hardware and storage configurations, showing up to 50% faster plot generation compared to previous out-of-RAM implementations, and highlight how this approach facilitates scalable, energy-efficient blockchain participation.
Best Poster Finalist (BP): no
Poster: PDF
Poster Summary: PDF