Convert Mantle Restaked Ether CMETH to Chain-key USDT CKUSDT

Deployed on Ethereum layer 1 (L1) and governed by Mantle, mETH Protocol has, since late 2023, been providing users with access to $mETH, a value-accumulating receipt token that is highly composable across a range of DeFi applications on Mantle Network L2, offering exposure to additional yield-bearing opportunities. Users stake ETH with mETH Protocol and receive yield-bearing $mETH, and unstake $mETH to receive the underlying principal staked ETH and accumulated rewards. Since the inception of mETH Protocol, Mantle's mission has been to deliver the most user-friendly and rewarding $mETH experience. Thanks to ecosystem-wide adoption, $mETH users are able to trade on Mantle DEXs, earn yield by providing liquidity to $mETH liquidity pools, and generate yield within decentralized money markets. With $mETH's increasing adoption and composability within Mantle Ecosystem dApps, the protocol now ranks as the fourth largest ETH LSP by TVL. The introduction of $cmETH, a permissionless, composable liquid restaking token that unlocks restaking opportunities on Mantle, and $COOK, the protocol's upcoming governance token, mETH Protocol enters its next phase with further enhanced offerings. Through these features, mETH Protocol provides its users with capital efficiency, convenience, and a wide range of yield-bearing opportunities within Mantle Ecosystem dApps, all in a design that has been created to maximize security with non-custodial core smart contracts and off-chain services that enforce sanity bounds and risk limits.

ckUSDT is a digital twin of USDT on the Internet Computer Protocol network. Fully backed 1:1 by USDT, ckUSDT is powered by Chain-key technology which allows for cross chain interoperability without centralized intermediaries or bridges. Canister smart contracts on ICP can integrate with the Ethereum network using a combination of replicated HTTPS outcalls to a known set of public Ethereum nodes to read state and submit transactions, and chain-key ECDSA (ckECDSA) signatures, an enhanced version of threshold ECDSA, to sign those submitted transactions. Building upon this integration framework, ckUSDT is a pair of canister smart contracts that utilize HTTPS outcalls and ckECDSA services. The ckETH minter and ckUSDT ledger contracts work together to enable users and smart contracts to send and receive USDT value within seconds with negligible transaction fees, and no gas fees, while also always allowing users and smart contracts to send and receive USDT value to and from the Ethereum network. ckUSDT exposes ICRC-1 and ICRC-2 ledger interfaces (the fungible token standards of ICP), making it simple for all wallets on the Internet Computer to offer ckUSDT support.