Circle's Arc Layer-1 blockchain launches mainnet September 16 with BlackRock, Visa, and Fireblocks as validators after a $222M token presale at

Circle Announces Founding Validator Cohort and Major Integrations for Arc Ahead of September 16 Mainnet Launch

Circle launches Arc Layer-1 blockchain with BlackRock, Visa among 100+ institutional partners, raising $222M in token presale at $3B valuation.