The oldest cryptocurrency blockchain is being clogged up by a recent spate of Bitcoin-based memecoins such as Pepe, driving up transaction fees and renewing concern about the largest digital-asset trading platform. Binance halted withdrawals of Bitcoin twice in less than 12 hours on Sunday, citing congestion on the network. The exchange, which is embroiled in a fight with US regulators, said higher fees have been applied to pending transactions so they get picked up by Bitcoin miners — the computer rigs that operate the network. The Bitcoin offshoots are known as BRC-20 tokens. Memecoins such as Pepe have surged in ... (full story)