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以太坊研究日报

Ethereum Research Daily

Justin Drake called on the industry to calmly start planning for "bunker mode", recommending an orderly migration of assets to fresh addresses whose public keys are still hidden behind a hash, which set off a wide debate. nero_eth listed the 23 Glamsterdam EIPs now in Last Call, and Sepolia gas usage climbed to 83M. On ethresear.ch, CPerezz examined the orphaned bytecode that SETCODEFROM leaves behind.

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Image: ethresear.ch, Who cleans up the code? (CPerezz)

Post-quantum migration: bunker mode

Who cleans up the bytecode SETCODEFROM leaves behind

ethresear.ch: who cleans up the code? SETCODEFROM's dangling bytecode and futureproof design choices

04:00 (CPerezz). Clients already keep bytecode that no account points to; EIP-8058 counted 27,869 such entries on a full-synced node as of Cancun, harmless so far because code sits outside the state root. SETCODEFROM, proposed for Hegotá, gives every transaction a new way to leave code behind, and the partitioned binary tree (PBT) moves code inside the state root. Combined, full-synced and snap-synced nodes would disagree on what is in their code databases. The author argues for settling the rules while EIP-8298 is still a draft.

https://ethresear.ch/t/who-cleans-up-the-code-setcodefroms-dangling-bytecode-and-futureproof-design-choices/26127

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