Sovereign EVM Day Concludes: A New Era of Blockchain Interoperability in the Cosmos Ecosystem

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The Cosmos ecosystem took a bold leap forward with the successful conclusion of Sovereign EVM Day, a landmark summit held on June 30, 2025, at Hotel Belle Plage in Cannes, France. Co-hosted by Cosmos and Interop Ventures, the event brought together over 18 leading blockchain teams to explore the future of decentralized infrastructure, interoperability, and scalable EVM adoption across sovereign chains.

This inaugural event in the Sovereign series spotlighted the growing momentum behind modular blockchain design, cross-chain communication, and the expansion of Ethereum Virtual Machine (EVM) capabilities within the Inter-Blockchain Communication (IBC) ecosystem. With high-profile announcements from Ripple, TAC, Stride, and others, the summit marked a turning point in the evolution of multi-chain connectivity.

The Rise of Cosmos EVM: A Unified Stack for Sovereign Chains

At the heart of the summit was the official unveiling of Cosmos EVM — the market’s first fully integrated EVM Layer 1 stack built on the Cosmos SDK. Designed for maximum flexibility and developer control, this stack enables independent blockchains to run EVM-compatible smart contracts while maintaining sovereignty and seamless IBC interoperability.

Barry Plankett and Magnus Marennecke, co-CEOs of Interop Labs, opened the event by outlining Cosmos’ strategic roadmap. They emphasized how Cosmos EVM empowers teams to build custom application-specific chains that can natively interact with Ethereum, Bitcoin, Solana, and hundreds of other networks via IBC.

"We’re not just connecting blockchains — we’re enabling ecosystems to co-evolve," said Plankett. "From Telegram to XRP, millions are about to enter the multi-chain world through Cosmos. Sovereign EVM Day proves that the blockchain internet is no longer a vision — it's here."

Already adopted by major protocols like Ripple, TAC, and Babylon, Cosmos EVM is setting a new standard for cross-chain development. Its modular architecture allows chains to choose their consensus, tokenomics, governance, and execution layers — all while benefiting from shared security and liquidity.

👉 Discover how developers are building the next generation of interoperable dApps on a unified EVM stack.

Ripple Launches XRPL EVM Sidechain on Cosmos

One of the most anticipated announcements came from Ripple, which revealed the mainnet launch of its XRPL EVM sidechain built using the Cosmos SDK. This new chain bridges the $127 billion DeFi economy with Ripple’s high-speed, low-cost XRP Ledger infrastructure.

Luke Gospel, Director at Ripple, joined Peersyst CEO and founder Ferran Torres to detail how the sidechain enables native IBC interoperability between XRP, EVM-based assets, and the broader Cosmos network. Developers can now deploy Ethereum-compatible dApps that directly access XRP liquidity and cross-chain messaging.

This integration opens up new use cases in payments, remittances, and institutional DeFi — all while maintaining compliance-ready frameworks essential for global financial institutions.

TAC Unveils Telegram-First EVM Chain for 1 Billion Users

Another major highlight was TAC Blockchain, an EVM application layer designed specifically for the Telegram and TON ecosystems. With over 1 billion active users on Telegram, TAC aims to onboard the world’s largest messaging community into Web3 without friction.

Marco Monaco, co-founder of TAC, explained how their chain enables seamless DeFi experiences directly within Telegram — no wallet switching or external apps required. By leveraging native IBC support, TAC connects TON’s ecosystem to hundreds of blockchains, unlocking cross-chain lending, trading, and yield opportunities previously unavailable.

"Imagine accessing Bitcoin, Ethereum, or Cosmos assets through a simple chat interface," Monaco said. "That’s the power of sovereign EVMs — they bring Web3 to people where they already are."

Stride Advances DeFi with IBC Flywheel and StrideDEX

Stride Labs presented its latest innovation: StrideDEX, a native Cosmos decentralized exchange powered by IBC Eureka. Backed by the Interchain Foundation, StrideDEX is set to become a cornerstone of cross-chain DeFi by offering deep liquidity aggregation across IBC-connected chains.

The platform introduces Hub Routing, a one-click solution allowing users to swap assets not only between IBC zones but also with Ethereum, Solana, and Bitcoin via bridges. This eliminates the need for multiple hops and fragmented liquidity pools — a common pain point in today’s multi-chain landscape.

Moreover, Stride’s evolution of the IBC Flywheel model incentivizes staked asset flows across chains, creating a self-reinforcing cycle of liquidity and security. As more users stake and route through Stride, the entire IBC ecosystem gains resilience and efficiency.

👉 Explore how next-gen DEXs are solving liquidity fragmentation in multi-chain DeFi.

Expanding Connectivity: Cosmos Links Ethereum, Solana & Beyond

Recent upgrades to IBC have significantly enhanced Cosmos’ interoperability footprint. The network now supports direct or bridged connections with Ethereum, emerging Layer 2 solutions, Solana, and even Bitcoin through projects like Babylon.

This expanding web of connectivity positions Cosmos as a central hub for financial assets, institutional services, and cross-chain applications. Unlike siloed ecosystems, Cosmos enables true composability — where dApps can leverage data and value from any connected chain.

Projects like Starknet, Polygon, Anoma/Namada, and Pantera participated in panel discussions exploring modular design patterns, privacy-preserving interchain messaging, and sustainable token economies.

What Are Sovereign Blockchains?

Sovereign blockchains are independent networks that maintain full control over their consensus, governance, and upgrade paths while still participating in a larger interoperable ecosystem. Unlike appchains that rely on shared security models, sovereign chains use protocols like IBC to communicate securely without sacrificing autonomy.

This model is ideal for enterprises, governments, and communities seeking regulatory compliance, performance optimization, and long-term sustainability — all within a decentralized framework.

The Future of Web3: Built at the Intersection of Chains

Sovereign EVM Day wasn’t just a technical showcase — it was a declaration of intent. The future of Web3 lies not in isolated ecosystems competing for dominance, but in interconnected networks collaborating to solve real-world problems.

As Cosmos continues to expand its reach through innovations like Cosmos EVM, IBC Eureka, and Hub Routing, it’s clear that the era of fragmented blockchains is ending. In its place emerges a unified digital economy where value, identity, and logic flow freely across chains.

👉 See how you can start building or investing in the next wave of interoperable blockchain projects.

Frequently Asked Questions (FAQ)

Q: What is Sovereign EVM?
A: Sovereign EVM is a fully integrated Ethereum Virtual Machine stack built on the Cosmos SDK. It allows independent blockchains to run EVM-compatible smart contracts while maintaining sovereignty and native IBC interoperability.

Q: How does Cosmos EVM differ from other EVM solutions?
A: Unlike typical EVM sidechains or rollups, Cosmos EVM gives chains full control over their architecture — including consensus, governance, and tokenomics — while enabling seamless cross-chain communication via IBC.

Q: Can non-Cosmos chains connect to this ecosystem?
A: Yes. Through IBC bridges and upgrades, networks like Ethereum, Solana, Bitcoin (via Babylon), and TON can securely exchange data and assets with Cosmos-based chains.

Q: What role does IBC play in this ecosystem?
A: IBC (Inter-Blockchain Communication) protocol is the foundational layer enabling trust-minimized message passing between independent blockchains. It powers cross-chain transfers, dApp composability, and liquidity sharing.

Q: Is Cosmos EVM suitable for enterprise use?
A: Absolutely. Its modular design allows enterprises to build compliant, high-performance application chains tailored to specific business needs while connecting to global financial networks.

Q: When will StrideDEX be live?
A: StrideDEX is expected to launch in Q3 2025 following final audits and testnet validation. It will initially support major IBC zones and expand to Ethereum and Solana shortly after.

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