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<p>The blockchain trilemma–simultaneously achieving scalability, security, and decentralization–remains a persistent challenge in distributed systems. This study introduces StorjChain, a framework leveraging Storj’s decentralized storage network (DSN) and Proof-of-Storage (PoS) consensus to resolve this trilemma. By fragmenting data into 256-byte shards distributed across 84 global nodes, StorjChain achieves 98.7% shard availability via erasure coding (29 data + 55 parity shards) and 3<InlineEquation ID="IEq1"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="10207_2025_1100_Article_IEq1.gif" Format="GIF" Height="13" Rendition="HTML" Resolution="72" Type="Linedraw" Width="19" /> </InlineMediaObject> <EquationSource Format="TEX">\(\times \)</EquationSource> <EquationSource Format="MATHML"><math> <mo>×</mo> </math></EquationSource> </InlineEquation> replication per shard while reducing on-chain metadata to 64 bytes per transaction. The system processes 980 transactions per second (TPS) with 1.2-second latency, demonstrating a chain quality score of 0.92 under 35% adversarial influence. StorjChain reduces storage costs by 76% compared to traditional blockchains, requiring only 192.3 GB for 867,541 blocks. Experimental analyses confirm its ability to harmonize scalability, security, and decentralization, setting a new standard for blockchain applications.</p>

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StorjChain: overcoming the blockchain trilemma via decentralized storage and erasure-coded sharding

  • 期刊论文

  • 发表日期：

    2025年7月17日

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  • Saha Reno,
  • Koushik Roy

摘要

The blockchain trilemma–simultaneously achieving scalability, security, and decentralization–remains a persistent challenge in distributed systems. This study introduces StorjChain, a framework leveraging Storj’s decentralized storage network (DSN) and Proof-of-Storage (PoS) consensus to resolve this trilemma. By fragmenting data into 256-byte shards distributed across 84 global nodes, StorjChain achieves 98.7% shard availability via erasure coding (29 data + 55 parity shards) and 3 \(\times \) × replication per shard while reducing on-chain metadata to 64 bytes per transaction. The system processes 980 transactions per second (TPS) with 1.2-second latency, demonstrating a chain quality score of 0.92 under 35% adversarial influence. StorjChain reduces storage costs by 76% compared to traditional blockchains, requiring only 192.3 GB for 867,541 blocks. Experimental analyses confirm its ability to harmonize scalability, security, and decentralization, setting a new standard for blockchain applications.