We help startups leverage blockchain technologies to solve real-world problems related to privacy, decentralization of trust and scalability.


  • Privacy

    Blockchain transactions are publicly visible, and in spite of pseudo-anonymity, these transactions can be traced on Ethereum and Bitcoin. With the help of cryptographic techniques, we have built chains that can preserve transaction privacy, making it untraceable.

  • Transaction Scalability

    Blockchain’s security, decentralisation and scalability trilemma is well known. Based on our experience, layer 2 techniques such as sidechains, state channels and payment channels prove to be a good compromise between scale and decentralisation.

  • Smart Contracts and DApps

    Decentralised apps may not be the present but indeed, are the future. Starting with a decentralised app does not always work as it needs a community to support it. We address this by building a private chain, to begin with, and move it to a public chain once the community is built.

  • Asset Tokenization & Stablecoins

    Although cryptocurrencies are promising, they suffer from risks of high volatility in valuation. Fiat backed stablecoins are gaining traction as they minimise the risks. However, Stablecoins come with implementation challenges of integration with banks, transactions atomicity etc. We engage in building end-to-end blockchain solutions that address these complexities.


TECHNICAL PAPER | October 22, 2019

Acceptable Privacy for XAND Blockchain (presented at IEEE Conference)

The privacy of transactions comes at the cost of the transactions not being visible at all to any regulatory bodies. This paper aims to resolve this problem by allowing some authorized participants to view the transactions, while at the same time maintaining the privacy of the transactions from other regular users, including the validators.

TECHNICAL PAPER | June 25, 2019

Patient Privacy and Ownership of Electronic Health Records on a Blockchain (published on Springer)

In this paper, we discuss a solution that enables patient-driven interoperability of medical records on a public blockchain while maintaining privacy using new cryptographic constructs and truly giving up control to the general public.

BLOG | January 2, 2020

Should a blockchain node save all the transaction logs?

In this blog, we argue that there is no point of storing the entire transaction log from the genesis in each validating node of a blockchain. We discuss on the following points - 1. Is it necessary to store the entire transaction log to validate transactions? 2. Is it more secure to store the transaction log than not storing it? 3. Is it possible to incentivize the validator nodes to store the log?

TECHNICAL PAPER | March 15, 2019

Blockchain Enabled IoT Edge Computing (published on ACM)

This paper proposes use of blockchain based decentralized application to enable IoT edge processing. It explains architectural components and overall solution for the usecase of video analytics at edge.

CASE STUDY | September 12, 2017

Building future ready product with blockchain

Enabling a banking service on app/cloud that automates user wealth, expenses, payments, documents, and philanthropy

BLOG | March 5, 2019

Decentralized Applications - Utilizing the Power of Blockchain Technology

A decentralized application (DApp) is a computer application that runs on a distributed computing system.

BLOG | October 1, 2018

GoSig BFT Consensus Protocol for Blockchain Simplified

Blockchain BFT protocols provide a better way of achieving block consensus than the proof of work used in Bitcoin.

BLOG | September 25, 2018

Why BFT protocols cannot have 1/3 dishonest parties

Any blockchain must organize the transactions in a linear order of the time of their execution, which may be different from their time of submission.

Meet theExpert

Debasish Ray ChawdhuriBlockchain Expert
  • Cryptography
  • Distributed Computing
  • Scalability


Blockchain Engineer

Experience in diverse consensus methods using Blockchain frameworks like Hyper ledger/Ethereum/other Blockchain technologies.

Current Openings

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