What is ICON (ICX)?

Deep Dive

1. Purpose & Value Proposition

ICON was launched in 2017 to solve blockchain fragmentation. Its primary value proposition was hyperconnectivity–allowing separate blockchain networks (e.g., from enterprises, governments, and other public chains) to interact without needing identical protocols. This was achieved through its Cross-Chain Framework, which simplified development for applications needing to operate across multiple chains.

2. Technology & Architecture

The network was powered by its proprietary Loopchain protocol, which supported smart contracts. It used a delegated proof-of-stake (DPoS) consensus mechanism called Delegated Proof of Contribution. ICX holders could stake tokens and delegate voting power to Public Representatives (P-Reps), who validated transactions and governed the network. This design aimed for commercial-grade speed and finality.

3. The Migration to SODAX

A pivotal shift began in 2025. Citing the high cost of maintaining its own Layer 1, the project rebranded to SODAX and initiated a migration to Sonic, an EVM-compatible blockchain (The Defiant). The ICON Foundation announced a phased shutdown: economic activity (emissions, staking rewards) ended in March 2026, and the legacy chain will become a read-only archive after December 31, 2026 (CoinMarketCap). ICX holders must migrate their tokens to SODA at a 1:1 ratio before the deadline.

Conclusion

ICON fundamentally was an ambitious interoperability project that evolved into recognizing the efficiency of outsourcing blockchain infrastructure, leading to its current transition into a chain-agnostic DeFi platform. How will the principles of seamless cross-chain connectivity be preserved in its new form on Sonic?