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DTSTAMP:20250626T233526Z
LOCATION:B302-B305
DTSTART;TZID=America/New_York:20241120T100000
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UID:submissions.supercomputing.org_SC24_sess533_post276@linklings.com
SUMMARY:Improving the Performance of Proof-of-Space in Blockchain Systems
DESCRIPTION:Varvara Bondarenko (Illinois Institute of Technology), Renato 
 Diaz (University of Central Florida), and Lan Nguyen (Illinois Institute o
 f Technology)\n\nBlockchain technologies enable the success of digital cur
 rencies by providing security, decentralization, and trustless operation. 
 Two dominant consensus algorithms, Bitcoin’s Proof-of-Work and Ethereum’s 
 Proof-of-Stake, balance security, scalability, and energy efficiency, thou
 gh PoW is energy-intensive and PoS faces centralization risks. Chia’s Proo
 f-of-Space (PoSpace) offers a middle ground, using storage (instead of com
 putation) for validation in the network while maintaining decentralization
 . PoSpace turns the computational-intensive problem into a data-intensive 
 known as plotting. However, Chia’s plotting process stresses hardware, req
 uiring expensive setups and shortening the lifespan of solid-state drives.
  This work takes a clean-slate approach to implementing an efficient PoSpa
 ce system that is lightweight and operates on small nodes (e.g. Raspberry 
 Pis with 4-cores and 2GB RAM) to large systems (HPC server with 192-cores,
  790GB RAM, and multiple NVMe storage devices). Our C and Rust implementat
 ions achieve significantly higher performance than Chia in plot generation
  and lookup efficiency across all system sizes.\n\nRegistration Category: 
 Tech Program Reg Pass, Exhibits Reg Pass\n\nSession Chairs: Ayesha Afzal (
 Friedrich-Alexander University, Erlangen-Nuremberg; Erlangen National High
  Performance Computing Center); Sally Ellingson (University of Kentucky); 
 and Alan Sussman (University of Maryland)\n\n
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