This has to be the most bespoke integration Circle has ever deployed! Hyperliquid got this for free while every other new chain has to pay Circle $5M for a deployment of their standard EVM contracts lol
Personally, one of the biggest risks with having my funds on Hyperliquid was having to trust Jeff and team about the decentralized architecture given the closed-source nature of the codebase. Circle is explicitly trusting Corewriter and the L1Read for the minting of USDC now, so their security team must have done a deep security audit of Hyperliquid's Rust execution layer and validated the safety
USDC is now linked between HyperCore and HyperEVM. This is a major milestone in allowing secure, natively minted cross chain USDC deposits directly to HyperCore. In the final state, the Arbitrum bridge will be deprecated and all USDC will be natively minted. There are many details still to build out, and the priority is to roll out features in a safe way while giving users and builders ample time to migrate. Thank you to the Circle team’s hard work on building this integration.
For users and builders, there is no immediate breaking change. Users can deposit and withdraw from both the Arbitrum bridge and HyperEVM. HyperCore now supports one-click deposits from CCTP-enabled chains, abstracting away the minting on HyperEVM. The CCTP route from Arbitrum has been deployed by Circle, with others to follow.