IOHK relaunches Mantis, offering Ethereum Classic community a more secure future
IOHK relaunches Mantis, offering Ethereum Classic community a more secure future
December 10, 2020
IOHK relaunches Mantis, offering Ethereum Classic community a more secure future
IOHK relaunches Mantis, offering Ethereum Classic community a more secure future
December 10, 2020

Global blockchain research and development company IOHK has announced that it is relaunching the ‘Mantis’ client, which was originally developed for Ethereum Classic (ETC) by IOHK in 2017. The decision to relaunch follows the recent 51% attacks on Ethereum Classic, which have exposed vulnerabilities in the protocol, making it clear that ETC is in need of enhanced security and innovation. The Mantis client aims to do this by introducing security measures and a decentralized treasury to fund future projects.  Mantis is software that connects to other clients on the Ethereum network in a peer-to-peer manner and is the only client that is written natively for Ethereum Classic, allowing it to offer high levels of assurance, security, and usability.

To address security concerns, Mantis is introducing checkpointing, a formally proven solution for mitigating 51% attacks. It is also based on the Scala programming language, which offers robust security guarantees. Alongside security, it proposes a decentralized treasury which will fund the development of projects that provide additional utility for ETC, achieving greater adoption of the protocol and drawing new blood, with new ideas into the ETC ecosystem, helping to guarantee its long-term future. Part of that greater innovation will better enable advances in scalability and governance. Mantis will also use Runtime Verification’s ‘K’ framework to give more sophisticated techniques for smart contracts verification and more predictable gas costs, making the platform more appealing, both to developers building smart contracts and end-users looking for a cost-effective secure blockchain platform.

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Charles Hoskinson, CEO of IOHK, said:

“Ethereum Classic has reached a philosophical crossroads – the level of hashrate, price depreciation and activity on the chain all indicate that ETC needs to take a new direction. As a result, we have decided, alongside others, to inject some more life into the ecosystem. If we can achieve that, not only will ETC thrive, but it will have the chance to fully realise the original ‘code is law’ philosophy, which will become more and more crucial as regulation increases and governments look to adopt digital currencies.”

Ethereum Classic is built on the ‘code is law’ principle, which ensures transactional and computational immutability, meaning that smart contracts can’t be changed after they’ve been set. This is a key, founding blockchain principle. Mantis will combine this concept with recent advances in scalability and security, allowing for the ‘code is law’ principle to be preserved, whilst also driving innovation.

The relaunch of Mantis is a call to the ETC community to decide on the future of the blockchain. ETC community members can now choose whether they want to upgrade by voting with their feet. Those who want to move to the Mantis model can either upgrade their clients and switch to Mantis, or participate in a contingent burn contract. The latter means that IOHK would create a smart contract where community members can send their ETC and lock it, which will then be destroyed and redeemed for tokens, essentially triggering a system reset. This allows the option to upgrade with a guarantee that if not enough people join, the contract will refund all of the money. 

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Hoskinson continued:

“While we’re providing an option which we believe will provide more robust security and will encourage greater innovation in the Ethereum Classic community, the community is ultimately in control. They have to ask themselves whether they are truly happy with how the project has developed over the last 4 years, or whether it is time for a change in leadership which allows the ecosystem to achieve its promises.”

For more detail, tune in for a live video at 6.30pm UTC which will cover the relaunch in more detail. 


About IOHK

IOHK is an R&D and product engineering company, committed to using peer-to-peer innovations to provide 21st-century services to the 3bn who don’t have them. 

We build blockchain-based products for governments, corporations, and academic institutions and upskill people across the world, empowering them to solve the most pressing problems faced by people in their countries. 

We have core beliefs in decentralization, privacy, economic identity, and financial empowerment for everyone, and stand opposed to centralized control and bureaucracy. 

About Mantis

Mantis is a project that is built for the Ethereum Classic community, specifically designed for the developers, wallet users, and infrastructure providers to enable direct interaction with the ETC blockchain. Essentially, it is a place where future development can evolve and be tested by the community. The Mantis release includes the following components:

  • Mantis client – a CLI tool that connects to other clients in a peer-to-peer manner to allow users to communicate with the ETC chain, send and receive transactions, sync the blockchain data, execute and validate smart contracts, and deploy new smart contracts on-chain.
  • Mantis wallet – a node wallet with an incorporated graphical user interface (GUI), which connects to both the mainnet and the Sagano and Mordor testnets. 
  • Mantis faucet – enables developers to receive testnet funds for use on the Sagano and Mordor testnets.
  • Mantis explorer – allows tracking recent activities and transactions in regards to the ETC chain, covering the ETC mainnet, and Sagano and Mordor testnets. 
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Mantis software implements the official Ethereum Classic specification and Ethereum Classic Improvement Proposals (ECIPs) introduced by ongoing efforts and discussed across teams in the ecosystem. The project has undergone a number of enhancements in terms of adding robustness and variety to the client offering, including optimizations and network upgrades that improve network security, sustainability, and performance in the long term. It has been developed from the ground up and built in 100% Scala code, a functional programming language that offers security guarantees that other languages do not. Mantis features include stable peer discovery, pruning, fast synchronization, and newly implemented checkpointing (for 51% attack resistance), and proto-treasury (for long-term sustainability). Let’s take a closer look at these features.


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Ishita Bora

Ishita Bora is a Senior Content Creator at Digital Notice Media Labs with an experience of 1 year. She has completed her Master's Degree in Language and Linguistics in 2019 from Gauhati University, India. Her interest lies in blockchain technology and cryptocurrency space, as she loves writing about blockchain and other blockchain-related articles. Currently, she is working on blockchain-based news, reviews, featured articles, and guides.