What is ICON (ICX)?

Deep Dive

1. Purpose: From Interoperability to Optimized DeFi

ICON was conceived as a general-purpose blockchain ecosystem designed to enable different networks to communicate and transact seamlessly, a concept known as interoperability. Its core technology was the Blockchain Transmission Protocol (BTP). However, by 2025-2026, the team concluded that maintaining a proprietary Layer-1 was economically unsustainable compared to building on superior, existing infrastructure. The project's fundamental purpose has therefore shifted: it is now SODAX, a DeFi protocol layer focused on creating financial products, leveraging the Sonic chain for its high speed, low cost, and EVM compatibility (CoinDesk).

2. Technology: Migrating from Proprietary Chain to Sonic

The original ICON network used its own consensus mechanism called Loop Fault Tolerance (LFT), a variant of delegated proof-of-stake (DPoS). This technology is being retired. The new SODAX stack operates on Sonic, an EVM-compatible blockchain. This move outsources the complex and costly work of base-layer security and maintenance, allowing the SODAX team to concentrate solely on application-layer innovation and user experience.

3. Tokenomics: Transitioning from ICX to SODA

The legacy ICX token served as the gas and governance token for the ICON network, with an inflationary staking reward model. The migration replaces it with SODA, which has a fixed maximum supply of 1.5 billion. The new economic model is deflationary and fee-sharing: a significant portion (e.g., 90%) of the gas fees generated by SODAX's activity on Sonic flows back to SODA stakers, creating a direct revenue stream tied to protocol usage (Crypto.news).

Conclusion

ICON is fundamentally a project in transition, evolving from an independent interoperability-focused blockchain into a specialized DeFi application suite built atop a more robust and cost-effective host chain. Does this model of outsourcing base-layer infrastructure represent a viable future for other mid-tier Layer-1 projects?