Adam Back Criticizes Ethereum Architecture as Crypto Prices Hold Steady

Ethereum traded near $2,483.67 and Bitcoin held around $81,708.14 as markets showed muted reaction to renewed architectural debates. Blockstream CEO Adam Back publicly criticized Ethereum's account-based ledger design in favor of Bitcoin's unspent transaction output (UTXO) model, asserting early Ethereum creators disregarded warnings about distributed-systems issues. The critique followed Ethereum research warnings that artificial intelligence advances could pressure blockchain signature schemes within months under worst-case scenarios. Cardano founder Charles Hoskinson confirmed he attended an early technical call where Back previously warned developers, highlighting enduring architectural divides across layer-1 ecosystems.