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以太坊研究日报

Ethereum Research Daily

Per Ethereal news #32, ACDC #183 set devnet-8 for early August with minor repricing changes and discv5-only execution layer discovery, devnet-9 for August non-finality testing, and the first public testnet for September; new Hegotá proposals include EIP-8334, EIP-8341, EIP-8321 and EIP-8015. Four EIP-8141 changes were submitted: a canonical P256 sender account that lets passkey accounts enter the mempool without simulation, direct evaluation of protocol-defined validation prefixes, the APPROVE gas cost, and bounds on fee fields. misilva73 submitted an EIP for offline state migration to the PBT.

Image for July 23, 2026

Image: GitHub, ethereum/EIPs PR #12004

ACDC #183 and the Glamsterdam timeline

EIP-8141: passkeys and mempool admission

EIP-8141: a canonical P256 sender account for no-simulation admission

(AnkushinDaniil), submitted. 8141's protocol-defined no-simulation admission paths (default code, the canonical paymaster, the expiry verifier) are SECP256K1-only, while passkey/WebAuthn (secp256r1) wallets are a large and growing share of smart accounts; today an EIP-7702-delegated P256 account must go through full validation prefix simulation. The PR adds a canonical P256 sender account recognized by runtime code match, admitted with a code match, one `P256VERIFY` and a scope check.

https://github.com/ethereum/EIPs/pull/12004

bound the fee fields in the static constraints

EIP-8141: specify the APPROVE opcode gas cost (AnkushinDaniil), submitted, since `APPROVE` (`0xaa`) was the only new frame opcode without a gas cost; bound the fee fields in the static constraints (svlachakis), submitted, since RLP admits arbitrarily long integers while `TXPARAM` pushes fee fields onto the stack, where they might not fit a stack word.

https://github.com/ethereum/EIPs/pull/12005

State migration and privacy

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