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EIP-2926 Chunk-Based Code Merkleization

DraftCorecreated 2020-08-251 later proposal build on itrequires EIP-161, EIP-170

Introduce code-chunking in an MPT context.

Authors: Sina Mahmoodi (@s1na), Alex Beregszaszi (@axic), Guillaume Ballet (@gballet), Jochem Brouwer (@jochem-brouwer), Ignacio Hagopian (@jsign)

Depends on (2)

Proposals this one names in its requires field.

EIP-161State trie clearing (invariant-preserving alternative)EIP-170Contract code size limit

Built on by (1)

Later proposals that name this one in their requires field.

EIP-8007Glamsterdam Gas Repricings

What the specification covers

AbstractMotivationSpecificationConstants and DefinitionsConstantsDefinitionsCode merkleizationContract creation gas costUpdating existing code (transition process)RationaleHexary vs binary trieChunk sizeFirst instruction offsetGas cost of code-accessing opcodesDifferent chunking logicBackwards CompatibilityTest CasesSecurity ConsiderationsCopyright

This proposal declares no Solidity interface, so there is nothing to compute. It may be a core protocol change, a meta proposal, or written in prose only.

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