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    [CS297 Proposal]

    [Overview on IPFS and SWARM - PDF]

    [Deliverable 1]

    [Deliverable 2]

    [Deliverable 3]

    [Solidity Overview - PDF]

    [Deliverable 4]

    [CS297 Report - PDF]

    [CS298 Proposal]

    [CS298 Final Report-PDF]

    [CS298 Defense Slides-PDF]

CS297 Proposal

High performance distributed file system based on blockchain

Ajinkya Rajguru (

Advisor: Dr. Chris Pollett


In today's data driven world built on ease of accessibility and constant availability of data, decentralized storage systems play a significant role. A distributed filesystem is a file system which allows access to files/data at anytime through a computer network which can be stored on multiple file servers or locations. It unleashes the real potential of file sharing, controlled access of data and data reliability. Blockchain is a distributed ledger which stores records that are immutable and sharable. Introducing blockchain while developing a distributed filesystem provides a much needed boost of increased stability, robust auditing, higher data integrity, etc. The aim of this project is to improve the performance of a blockchain based filesystem. This includes performance measurement of existing filesystems and developing a novel distributed filesystem by leveraging an existing blockchain technology (like Ethereum).


Week 1: Aug 23 - Aug 30Finalize the project topic along with deliverables and draft a proposal
Week 2: Aug 30 - Sep 6Study research papers related to existing blockchain based distributed filesystems similar to the one's mentioned by Huang et al.[1]
Week 3: Sep 6 - Sep 13Begin working on Deliverable 1 to implement the Chord as proposed by Stoica et al.[5]
Week 4: Sep 13 - Sep 20Completion of Deliverable 1 and research on blockchain technologies
Week 5: Sep 20 - Sep 27Begin working on Deliverable 2 to begin the performance testing using different metrics like the one's sugegested by Zheng et al.[3]
Week 6: Sep 27 - Oct 4Continue working on Deliverable 2
Week 7: Oct 4 - Oct 11Begin working on Deliverable 2 to begin the performance testing using different metrics like the one's sugegested by Zheng et al.[3]
Week 8: Oct 11 - Oct 18Continue working on Deliverable 2
Week 9: Oct 18 - Oct 25Continue working on Deliverable 2 and start working on the basic architecture of the filesystem
Week 10: Oct 25 - Nov 1 Finish Deliverable 2 and Begin Deliverable 3
Week 11: Nov 1 - Nov 8Continue working on Deliverable 3 and start working on Ethereum [2]
Week 12: Nov 8 - Nov 15Finish Deliverable 3
Week 13: Nov 15 - Nov 22Begin Deliverable 4
Week 14: Nov 22 - Nov 29Continue working on Deliverable 4
Week 15: Nov 29 - Dec 6Finish Deliverable 4
Week 16: Dec 6 - Dec 13Work on the final report


The full project will be done when CS298 is completed. The following will be done by the end of CS297:

1. Finalize 3 research papers on blockchain based filesystem and implement an example of the chord protocol - Research on different blockchain based distributed filesystems and finalize 3 suitable technologies and implement the famous scalable lookup protocol which maps data to a particular node.

2. Deploy and execute performance testing on each of the 3 file systems and implement a toy example of one filesystem - Try to work with the finalized 3 file systems and do performance testing on different aspects to evaluate their capacity and capabilities.

3. Basic implementation of a simple distributed filesystem - Design and implement a decentralized filesystem structure which could work with multiple file blocks depending upon the architecture and perform basic tasks.

4. Integrating smart contract leveraging Ethereum - Try to work with smart contracts [4] using solidity on Ethereum and develop a gambling game for 5 players using solidity

5. CS297 report.


[1] [2020] When Blockchain Meets Distributed File Systems: An Overview, Challenges, and Open Issues. H. Huang, J. Lin, B. Zheng, Z. Zheng and J. Bian. IEEE Access, vol. 8, pp. 50574-50586, 2020, doi: 10.1109/ACCESS.2020.2979881.


[3] [2020] A Detailed and Real-Time Performance Monitoring Framework for Blockchain Systems. P. Zheng, Z. Zheng, X. Luo, X. Chen and X. Liu, 2018 IEEE/ACM 40th International Conference on Software Engineering: Software Engineering in Practice Track (ICSE-SEIP), 2018, pp. 134-143.

[4] [2021] Blockchain smart contracts: Applications, challenges, and future trends. Khan, S.N., Loukil, F., Ghedira-Guegan, C. et al. Peer-to-Peer Netw. Appl. 14, 2901–2925 (2021).

[5] [2003] Stoica et al., "Chord: a scalable peer-to-peer lookup protocol for Internet applications," in IEEE/ACM Transactions on Networking, vol. 11, no. 1, pp. 17-32, Feb. 2003, doi: 10.1109/TNET.2002.808407.