HashEx. Blockchain Audit and Consulting

One of the most impactful tech advisory in EMEA region. More than
30 global projects are running on blockchain integrations designed
by HashEx. 200+ smart contracts were audited in 2017-2021.

Latest news

CryptEx Locker Birthday
March 2021
CryptEx Locker is launched on Binance Smart Chain.
protect investors funds from rug

CryptEx Token Listing on PancakeSwap
February 2021
We are proudly announcing PancakeSwap listing of CryptEx Token! Thank you all for the support!
make your funds safu

300 MNS domains were sold
October 2019
Our congratulations for early MNS customers. Enjoy safe domains!
become an owner of decentralized domain

HashEx run Passport
September 2019
Passport, your own digital id, a service fow sharing and validating personal or private data has launched.
check it

HashEx run decentralized DNS
August 2019
We are celebrating a launch of new decentralized domain name system called MNS.
check it

HashEx CEO becomes Minter Expert
July 2019
Dmitry Mishunin, HashEx CEO, was invited as an expert to Minter blockchain community.

HashEx CEO is on 16th SPb Blockchain Meetup
October 2018
Dmitry Mishunin, HashEx CEO, presented "Blockchain 4.0 Problems and Solutions" on 16th SPb Blockchain Meetup.
view video

Paper Wallet released
October 2018
We celebrate our long awaited Paper Wallet release. Paper Wallet is the safest way to store your seed phrase and private keys.
check it free

HashEx team celebrates delivery of the 150th smart contract audit!
August 2018
We are proud to present the anniversary smart contract audit which was done for Eristica company. You can read more about our audits on our Medium blog.
view article

HashEx announces partnership with #MetaHash
July 2018
We are excited to collaborate with #MetaHash team on development of a next-generation network based on Blockchain 4.0
view article

HashEx presents ABI encoder, a free product for Ethereum developers
April 2018
ABI Encoding Service helps you encode ABI parameters easily.
view article

HashEx CEO is the best speaker of DeCenter TokenConf
March 2018
Dmitry Mishunin, HashEx CEO, was ranked among the top 3 speakers on DeCenter TokenConf 2018 conference.
view video

Most popular article on HashEx Blog
January 2018
‘Top 16 ICO Whitepaper Mistakes’ was ranked the most popular article with 10 000 views on HashEx blog in 2017.
view article

Services

Blockchain Integration

We at HashEx develop concepts for blockchain integration into your business processes so that your company can gain competitive advantage on the market. Also, HashEx calculates the costs and profits of blockchain integration.

We have successful projects with remittance platforms, supply chains, real estate, healthcare, and digital rights distribution.

Project Audit and Due Diligence

HashEx provides a range of services to blockchain projects:

Analyzing your product
Blockchain solutions advising
Technical consulting
Token's economy creation
Whitepaper audit
Risks analysis

Blockchain Architecture and Development

We can build your own blockchain platform. We have extensive experience with running public and private blockchains, forking existing platforms and creating new architectures.

We use the following tech stack:

Java, C++, NodeJS
Web3.JS
Truffle and Open Zeppelin frameworks
Solidity smart contracts and DApps on Ethereum
Bitcoin, Ethereum, Graphene, Neo, Stellar, Cosmos Network blockchains
Off-chain solutions

Smart Contracts and Security Audit

HashEx team deployed more than 200 smart contracts. We audited
over 150 contracts and saved over $300 millions of investor funds.

We develop the following Solidity smart contracts:

Token contracts

ERC20/ERC223

DeFi custom contracts

Loans, Swaps, Margin

Custom contracts including
EOS, Neo and Stellar

Also we offer smart contract auditing for security risks, misbehavior, bugs and inefficiency.

Products

Hierarchical Deterministic (HD) Keys Library

HD Keys Library is a self-implemented library which allows to receive crypto payments in a secure way.

read a detailed post here

Library features:

Java application without untrusted dependencies
BIP32, BIP39, BIP44 support
RESTful API
Full and light client modes

Request a demo/quote

Online ABI Encoder ^free

When you want to verify your Solidity Smart Contract's code on Etherscan.io or manually make a transaction to call your contract's method, you need to encode input arguments in a special way.

Free ABI Encoding Service from HashEx helps you encode these arguments online.

Check free ABI Encoder

Paper Wallet ^free

Paper Wallet is the safest way to store your seed phrase and private keys. Our free solution allows to split your seed phrase into several pages which you can print out and keep separately.

read FAQ

Check free Paper Wallet

Customers

CryptEx

Locker

CryptEx Locker

HashEx team developed CryptEx Locker, a powerful tool for protecting funds from rugs, team abuse and other forms of exploits. CryptEx allows users to lock tokens for a desired period of time or with additional conditions like multisignature proof.

Liquidity Token Locks
Team Token Locks

#MetaHash

HashEx collaborated with #MetaHash, a next-generation network based on Blockchain 4.0, on Yellow Paper, architecture of #TraceChain and #MetaApps, and audit of #MetaHash blockchain security.

"HashEx is a great team of professionals in blockchain that could be given really tough tasks and be sure they will help. It's extremelly rare that you can team up with an external team and get some load away from you main dev team, but with HashEx that's exactly the case."

Gleb Nikitin, Tech Lead and Co-founder of #MetaHash

#blockdeblock

For #blockdeblock, original cryptowear online store, HashEx developed blockchain-based Supply Chain Management System and created concept of BrandGuard® technology. We also developed frontend and backend for online store and integrated payment gateway with HD Keys Library to process payments in any cryptocurrency.

“HashEx covered the technical part of the project in full and let us concentrate on the business itself. With IT being the critical component in our business processes, our collaboration saved us a lot of time that we could invest into solving other important tasks.”

The #blockdeblock Team

Aggregion

For Aggregion, The Distributed Digital Object Governance Framework, we developed the concept of blockchain integration into their business processes. We advised on the most relevant blockchain platform for their goals and developed technical specification for the product prototype.

CryptEx

Locker

Media

VoidFarm: Smart contract audit report
Polly Traore
https://medium.com/hashex-blog/voidfarm-smart-contract-audit-report-55f78595b989

EchelonDAO: Smart Contract Audit Report
Polly Traore
https://medium.com/hashex-blog/echelondao-smart-contract-audit-report-1149495a8389

CryptEx Ambassador Program
Polly Traore
https://medium.com/hashex-blog/cryptex-ambassador-program-62f25823a12a

Smart Contracts Security Audit, DeCenter TokenConf 2018
Dmitry Mishunin
https://www.youtube.com/watch?v=IM_a5PZbAGo

Random Numbers in Ethereum
Dmitry Mishunin
https://www.youtube.com/watch?v=Isp2Fz-28uw

How to Receive Crypto Payments?
Dmitry Mishunin
https://www.youtube.com/watch?v=cNyAfWglicc

The Team

Dmitry Mishunin

CEO & Founder

Ksenia Borodulina

IT & Operations
Business Partner

Gleb Zykov

Tech Lead,
Smart Contracts

Alexey Belozertsev

Tech Lead,
Frontend & Backend

Ivan Pogosov

Chief Marketing Officer

Polly Traore

PR Manager

Timofey Ukleev

Security Services

Konstantin Alexeev

Developer

HashEx. Blockchain Audit and Consulting

Latest news

CryptEx Locker BirthdayMarch 2021CryptEx Locker is launched on Binance Smart Chain.protect investors funds from rug

CryptEx Token Listing on PancakeSwapFebruary 2021We are proudly announcing PancakeSwap listing of CryptEx Token! Thank you all for the support!make your funds safu

300 MNS domains were soldOctober 2019Our congratulations for early MNS customers. Enjoy safe domains!become an owner of decentralized domain

HashEx run PassportSeptember 2019Passport, your own digital id, a service fow sharing and validating personal or private data has launched.check it

HashEx run decentralized DNSAugust 2019We are celebrating a launch of new decentralized domain name system called MNS.check it

HashEx CEO becomes Minter ExpertJuly 2019Dmitry Mishunin, HashEx CEO, was invited as an expert to Minter blockchain community.

HashEx CEO is on 16th SPb Blockchain MeetupOctober 2018Dmitry Mishunin, HashEx CEO, presented "Blockchain 4.0 Problems and Solutions" on 16th SPb Blockchain Meetup.view video

Paper Wallet releasedOctober 2018We celebrate our long awaited Paper Wallet release. Paper Wallet is the safest way to store your seed phrase and private keys.check it free

HashEx team celebrates delivery of the 150th smart contract audit!August 2018We are proud to present the anniversary smart contract audit which was done for Eristica company. You can read more about our audits on our Medium blog.view article

HashEx announces partnership with #MetaHashJuly 2018We are excited to collaborate with #MetaHash team on development of a next-generation network based on Blockchain 4.0view article

HashEx presents ABI encoder, a free product for Ethereum developersApril 2018ABI Encoding Service helps you encode ABI parameters easily.view article

HashEx CEO is the best speaker of DeCenter TokenConfMarch 2018Dmitry Mishunin, HashEx CEO, was ranked among the top 3 speakers on DeCenter TokenConf 2018 conference.view video

Most popular article on HashEx BlogJanuary 2018‘Top 16 ICO Whitepaper Mistakes’ was ranked the most popular article with 10 000 views on HashEx blog in 2017.view article