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DTSTAMP:20260202T201259Z
LOCATION:Second Floor Atrium
DTSTART;TZID=America/Chicago:20251121T080000
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UID:submissions.supercomputing.org_SC25_sess620_post169@linklings.com
SUMMARY:VaultX Merge: Breaking Memory Barriers in Proof-of-Space Plot Gene
 ration
DESCRIPTION:Arnav Sirigere, Varvara Bondarenko, and Ioan Raicu (Illinois I
 nstitute of Technology)\n\nProof-of-work blockchains, like Bitcoin, consum
 e substantial energy, motivating greener alternatives such as proof-of-spa
 ce (PoSp), which relies on storage rather than computation. Existing PoSp 
 implementations face scalability challenges due to high memory and I/O req
 uirements, especially when generating large plots needed for fast lookups.
 \n\nWe present VaultX Merge, a novel out-of-memory PoSp plot generation me
 thod. VaultX Merge first creates multiple small in-memory subplots and the
 n merges them into large plots, reducing redundant storage I/O, minimizing
  data size, and improving lookup latency. Our approach enables efficient o
 peration across a range of devices, from small nodes like Raspberry Pis to
  high-end servers.\n\nIn our poster, we will demonstrate VaultX Merge’s pe
 rformance across different hardware and storage configurations, showing up
  to 50% faster plot generation compared to previous out-of-RAM implementat
 ions, and highlight how this approach facilitates scalable, energy-efficie
 nt blockchain participation.\n\nTag: Research & ACM SRC Posters\n\nRegistr
 ation Category: Technical Program Reg Pass\n\nSession Chairs: Kento Sato (
 RIKEN Center for Computational Science (R-CCS)); Anja Gerbes (Georg-August
 -Universität Göttingen); and Chris Schlipalius (Pawsey Supercomputing Rese
 arch Centre; Commonwealth Scientific and Industrial Research Organisation 
 (CSIRO), Australia)\n\n
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