Altcoin News Circle debuts Arc testnet with participation by BlackRock, Goldman Sachs, Visa October 28, 2025 Circle’s new Arc blockchain testnet launches with participation from more than 100 institutions, including BlackRock, Goldman Sachs, Visa and Mastercard. About The Author coinmaker See author's posts Post navigation Previous: How high can SOL price go as the first Solana ETF goes live?Next: Can Pi Network’s ISO 20022 upgrade measure up to XRP Ledger and Stellar Network? More Stories Altcoin News SpaceX IPO update: Whale opens $22.3M SPCX long as synthetic price hits 30% premium June 12, 2026 Altcoin News Three signs that XRP price risks falling below $1 in June June 11, 2026 Altcoin News Audiera’s AI token BEAT beats Bitcoin, Ethereum as price surges 1,500% in a month June 11, 2026
