Shadow Arena #002: ElasticSwap

ElasticSwap is the first AMM built to support elastic supply (rebasing) tokens. It uses the constant product formula x * y = k, extended with a novel mathematical model for handling supply changes. The core challenge: how does an AMM maintain fair pricing when one token's total supply changes between transactions?

Scope (739 SLOC)

File	SLOC	Description
src/contracts/Exchange.sol	218	AMM pair contract: addLiquidity, removeLiquidity, swaps. Inherits ERC20 for LP tokens.
src/contracts/ExchangeFactory.sol	52	Factory for deploying new Exchange pairs. Manages fee address.
src/libraries/MathLib.sol	469	Core math library: swap amounts, LP minting, decay handling, fee calculation.

Documentation

Source Code Protocol Docs

Part of the Uniswap V2 Path

This shadow audit connects to the Uniswap V2 Build module. Students who completed the CFAMM build have an advantage because they understand the core architecture.

View Build Module

Duration2 days

Total Findings3

Scope739 SLOC

PriceFree