We are passionate about building the Crypto.org Ecosystem with our community to drive crypto mass adoption by supporting fundamental use cases like Payments, NFT and dApp (e.g, DeFi, Game-Fi).

Since day one, we have been working with many incredible partners, in particular validators, who have put us in a great position to serve the ecosystem better.

Along with the significant steps that have been made in line with our roadmap, we are very excited to announce the following major updates!

Cronos - Phase II Canis Major Upgrade on the Crypto.org Chain

Our first version of Ethermint Cronos Testnet has been live since 20 July 2021. Cronos is an EVM sidechain running concurrently with the Crypto.org Chain, which is built on Ethermint and is equipped with Smart Contract capability. It is based on the Proof-of-Authority (PoA) consensus mechanism, allowing for low energy consumption with a limited number of actors. It is a streamlined consensus protocol that can ensure security within various validators run by many different parties.    

Currently, there are over 20 validators supporting Cronos. Validators are able to run a Tendermint PoS equivalent of Ethereum and enjoy all the benefits of Ethereum. Tendermint allows for more transactions per minute than the EVM, making it more efficient to execute smart contracts. Furthermore, as it is based on the Cosmos SDK, Ethermint is connected with other blockchains in the Cosmos ecosystem through the Inter Blockchain Community Protocol (IBC), enabling its users to unlock more potential on the chain.

Cronos and Tharsis Collaboration

To expand the IBC and EVM cross-chain interoperability, both the Tharsis Finance team and Crypto.org Chain engineers have been working together in delivering a top-class EVM chain on the top of Cosmos, which is the Cronos Testnet. This testnet will be the first to demonstrate Ethermint capabilities in a Cosmos interchain ecosystem, where multiple EVM chains can interoperate with each other using IBC. Non-EVM chains would also benefit from the composability of Ethermint, as they would be able to interact directly with smart contracts, NFTs, and ERC20 tokens.

The binary of Cronos testnet repository is available here; the complete details about Cronos are on its website. You can view the details of the transactions in Cronos explorer.  

Release of Crypto.org Chain Desktop Wallet v0.4.2

We recently released the latest version of the Crypto.org Chain Desktop Wallet v0.4.2. The previous release of desktop wallet enabled NFT support (view, send, and mint), and other essential functions, such as staking operations, validator selections, and governance voting. Furthermore, the desktop wallet has been empowered with support for seed phrase export, allowing validators who lost their phrase to export it from the app simply by providing the app password.

In this new release, the following extensive features have been added:

  • Internationalization support, with additional 4 languages:
  • English, Chinese (Traditional), Chinese (Simplified), Korean
  • Windows auto-updater capability support
  • Removal of the obsolete old croeseid network support, while maintaining croeseid v3
  • Update on internal dependencies

The team has created a complete step-by-step Desktop Wallet user guide, updated in the Crypto.org Chain Doc under the ‘Wallet’ section. It includes detailed instructions on minting and performing NFT transactions, sending and receiving funds, staking operations, governance, as well as setting changes.

Release of NFT Web Tool Example Code

We strive to support the integrations of NFT for a plethora of use cases. While the Crypto.com NFT Marketplace is one of the most successful use cases of on-chain NFT features, we are excited to continue enabling and supporting different NFT initiatives from the community.

That’s why we are happy to share and open-source an NFT web tools example code to demonstrate how everyone can integrate their platform into the Crypto.org Chain NFT world. The example code now supports Keplr wallet, one of the trendy Cosmos SDK-based chain wallets, which is available at:


If you have any NFT project ideas, please do not hesitate to share them with us or apply for our Ecosystem Grants Programme. We look forward to hearing and supporting your brilliant idea!

Decentralized Finance Oracles

Chainlink Price Feeds are currently being integrated into Cronos as one of our oracle solutions for developers in need of external financial market data in their DeFi applications. Chainlink connects smart contracts on the blockchain to external resources, including real-world data, Web API, and payment networks. Chainlink’s oracle infrastructure ensures consistent uptime and it is tamper-resistant.

Cronos, as Crypto.org’s Ethereum Virtual Machine (EVM) chain, is now able to communicate directly with Chainlink oracles for price data and information on the state of external blockchains.

Band Protocol Integration

Band Protocol is the Cosmos-based cross-chain data oracle platform that connects real-world data and APIs. Since Band Protocol is also built on Cosmos SDK, the data on Band Protocol can be quickly and efficiently integrated and communicated with the Crypto.org Chain via the inter-blockchain communication protocol (IBC).

Specifically, the Crypto.org Chain would be able to directly call the price data from Band Protocol and retrieve the data by the cross-chain functions. This could also enable the efficient transition of DeFi DApps built on Cronos using price feeds from Band Protocol if they are to migrate to the Crypto.org Chain.

Both the Chainlink and Band Protocol integrations will provide developers access to a high-performing decentralized oracle network and enable a seamless transition for DeFi DApps built on both the Crypto.org Chain and Cronos. This will further allow a wider variety of use cases on both networks.

Explorer Updates on IBC

IBC transactions have been enabled on Mainnet and have since been integrated with some of the projects. We have now enabled the support for most of the IBC messages in Explorer to help visualize the IBC messages.

In the future, we will further enhance IBC support to support more use cases.

Stay Posted on Crypto.org Chain News

Telegram Channel

The Crypto.org Chain Telegram channel went live recently and you can now get first-hand news about the chain. If you have not subscribed to the channel, you can do so by clicking this link.

Newsletter Subscription

We collate all our chain updates into newsletters. If you wish to be informed of all the major developments, please click the following links to subscribe:

We highly recommend our validators to subscribe to the newsletters, as this is one of the easiest ways to stay up-to-date with the chain’s critical updates and latest changes.

  1. General Newsletter: Covers the highlights and updates of the Crypto.org Chain
  2. Mainnet Security Newsletter: Intended for our Mainnet validators and delivers important updates of the Mainnet
  3. Croeseid Testnet Security Newsletter: Covers regular updates and significant findings in the Croeseid Testnet

What’s coming next?

We are excited to see you as one of our validator partners in the Cronos Testnet ecosystem, as we continue to innovate together! Also, don’t forget that Particle B is announcing a grant program of up to USD 100M to support projects building applications on the Crypto.org EVM Chain. You can find the application here. We highly encourage crypto startup founders to apply!

If you would like to participate in the network and be part of our journey, be sure to bookmark the Mainnet blog and join our official Discord channel, so you don’t miss any announcements!