Research & Writing

Selected work by Soham Zemse on Ethereum protocols, privacy, cryptography, and smart contract security.

Interactive No Opt-in Stealth Addresses

A stealth address protocol where the receiver computes the address, so senders need no opt-in or privacy onboarding.

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Understanding EIP-7864's Unified Binary Tree

A walkthrough of Ethereum's proposed unified binary state tree, why it replaces the hexary Merkle-Patricia trie, and how the commitment scheme works.

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L2 Calldata Optimisation

Historical, pre-blob research on compact calldata encoding for rollups, trading L2 computation for lower L1 data costs.

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EXTSLOAD Cost Estimation

Gas-cost analysis for the proposed EXTSLOAD opcode (EIP-2330), comparing EXTCODE+SLOAD and EXTCODEHASH+SLOAD pricing.

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Compressed Integers

Exploring lossy compression of uint256 values to reduce storage and calldata gas costs.

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Solidity Code Review of Rebase Projects

A security review of the Solidity behind rebase and elastic-supply token projects.

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