Circle's Arc Goes Live With KuCoin, Binance and Kraken as Stablecoin Rails Go Mainstream

This audio is presented by Hacker Noon, where anyone can learn anything about any technology. Circles Arc goes live with KuCoin, Binance and Kraken as stablecoin rails go mainstream, by Ashan Pandey. Circles Arc went live on the 16th of September with something most new blockchains spend a year chasing. A way in. 13 exchanges switched on direct USDC transfer stow the network on its first day, KuCoin among them, which means a user holding dollars on Binance, Kraken, OKEx, Bybit, Gate, Upbit or KuCoin can move them onto ARK without routing through Ethereum or a bridge. KuCoin's chief executive B.C. Wang described the integration as a question of access rather than technology, Inves reported. A chain built for payments and treasury matters only if the people and institutions holding dollars can reach it in one step. That is the larger point of the launch. For stablecoins to work as payment rails, theon ramps matter as much as the chain. Circle arrived with most of the industries on ramps already connected. Circle's launch list names 13 exchanges live on day 1. Binance, Bitso, Bitvavo, Bybit, Coinbase, Gate, Kraken, KuCoin, MEXC, OKEx, OSL, Upbit and Wenia. Ten wallets came with them, including Metamask, Phantom, Ledger, Trust Wallet, Binance Wallet and OKEx Wallet, plus the Custodians Anchorage, BitGo and Fireblocks, four banks in BNY, HSBC, Societe Generale and State Street, plus the three largest DeFi protocols, Aave, Morpho and Uniswap, which deploy their existing contracts unchanged because ARK runs the Ethereum virtual machine. Circle put the total at more than 100 applications and institutional integrations on the first day. What ARK is? ARK is a layer 1 blockchain in which USDC is the gas token. Every fee on the network is paid in dollars, so a company moving money on ARK never has to hold a volatile coin to pay for the transfer. Circle minted 10 billion ARK tokens at Genesis for staking, governance and network security, DataWallet reports, but fees stay in USDC and the chain launched under proof of authority, with a move to proof of stake planned for 2027. Consensus runs on Malachite, a tender mint-style engine Circle acquired from Informal Systems, which produces blocks roughly every half-second and reaches final settlement in under 350 milliseconds with 20 validators. There is no probabilistic confirmation window and no chain reorganization. A payment that settles is settled. Executionus is RETH, the Rust Ethereum client, which is why Aave, Uniswap and Morpho could ship on day one without rewriting anything. Euro-denominated EURC is supported alongside USDC. Circle's stable FX engine offers payment versus payment settlement between more than 20 local currency stablecoins around the clock. Opt-in confidential transactions using Vue keys are in development but were not live at launch. The validator set is the part that separates ARK from every other chain launched this year. The 11 founding validators are BlackRock, DTCC, Galaxy, ICE, MasterCard, MoneyGram, SBI Group, Standard Chartered, Sumitomo Corporation, Vizen WorldPay, with Circle itself making 12th. DTCC clears most of the US securities market. Visa and Mastercard run the card