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Uniswap initiates a temperature check for the activation of v4 protocol fees, introducing a tiered fee controller system

According to official news, Uniswap Labs has released a temperature check proposal, suggesting the activation of protocol fees in the v4 pool. This proposal follows the rapid governance process previously approved by UNIfication and will directly enter a five-day Snapshot voting period, followed by on-chain voting.Due to the Hook architecture of v4 making fee settings more complex than v2/v3, the proposal has designed the V4 Fee Controller system, which includes two core contracts: V4FeePolicy calculates the fees for any pool based on governance rules, and V4FeeAdapter is responsible for executing governance overrides and collecting fees into TokenJar. Fees are calculated hierarchically based on the family of the pool: first checking the specific trading pair rate set by governance, then the family default rate, and finally the global default rate.This proposal aims to activate fees for three types of pool families across 11 chains including Ethereum, Arbitrum, Base, and BNB Chain: static rate pools without Hooks, CCA pools after continuous liquidation auctions, and aggregator Hook pools. The rates for aggregator Hook pools are adjusted by a 25x multiplier, with a default of 10 bp for non-Base chains (3 bp for stablecoin pairs) and a default of 3 bp for Base chains (1 bp for stablecoin pairs). All fees will flow into each chain's TokenJar, and the amount of UNI burned on L2 and Alt-L1 will be cross-chain bridged to the Ethereum mainnet and sent to the 0xdead address.The Snapshot voting window is from July 7 to July 12, and on-chain voting will start during the week of July 13. Since GovernorBravo limits each proposal to 10 actions, two on-chain votes will be submitted in parallel to cover all chains.

USDT will return to the Bitcoin network, and UTEXO will natively issue Bitcoin version USDT through the RGB protocol

Tether is preparing to natively issue USDT on the Bitcoin network based on the RGB v0.11.1 protocol, with commercialization and distribution handled by UTEXO. This will mark the return of USDT to the Bitcoin main chain after many years since it first landed on Bitcoin via the Omni protocol in 2014. Viktor Ihnatiuk, co-founder of UTEXO, stated that the company has received support from Tether to promote the implementation of native Bitcoin USDT.The RGB protocol employs client-side validation and integrates with the Lightning Network, enabling instant, low-cost, and private transactions of USDT while inheriting the security model of Bitcoin UTXO. In the future, users will be able to hold USDT directly through native Bitcoin addresses and complete transactions using Lightning Network wallets that support RGB, without relying on other public chains or intermediaries. Compared to the account model networks where USDT is primarily circulated, such as TRON and Ethereum, RGB naturally supports one-time addresses using the UTXO model and facilitates off-chain payments through the Lightning Network, effectively enhancing transaction privacy. Additionally, UTEXO is deeply integrated with Tether, reducing intermediary fees and data collection, and users can also convert USDT between different public chains at low cost through its already launched cross-chain bridge.
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