WedgeBlock: An Off-Chain Secure Logging Platform for Blockchain Applications

Abhishek Singh, Yinan Zhou, Sharad Mehrotra, Mohammad Sadoghi, Shantanu Sharma, Faisal Nawab

Research output: Contribution to journalConference articlepeer-review


Over the recent years, there has been a growing interest in building blockchain-based decentralized applications (DApps). Developing DApps faces many challenges due to the cost and high-latency of writing to a blockchain smart contract. We propose WedgeBlock, a secure data logging infrastructure for DApps. WedgeBlock's design reduces the performance and monetary cost of DApps with its main technical innovation called lazy-minimum trust (LMT). LMT combines the following features: (1) off-chain storage component, (2) it lazily writes digests of data-rather than all data-on-chain to minimize costs, and (3) it integrates a trust mechanism to ensure the detection and punishment of malicious acts by the Offchain Node. Our experiments show that WedgeBlock is up to 1470× faster and 310× cheaper than a baseline solution of writing directly on chain.

Original languageEnglish (US)
Pages (from-to)526-539
Number of pages14
JournalAdvances in Database Technology - EDBT
Issue number3
StatePublished - Mar 20 2023
Event26th International Conference on Extending Database Technology, EDBT 2023 - Ioannina, Greece
Duration: Mar 28 2023Mar 31 2023

All Science Journal Classification (ASJC) codes

  • Information Systems
  • Software
  • Computer Science Applications


  • Blockchain
  • Off-chain systems
  • secure logging
  • smart contracts


Dive into the research topics of 'WedgeBlock: An Off-Chain Secure Logging Platform for Blockchain Applications'. Together they form a unique fingerprint.

Cite this