# ChainTools
> On-chain contract truth layer: verification, bytecode twin matching, selector dictionary, and proxy intelligence.

## API
- OpenAPI: /api-docs
- Base URL: /api

## Pages
- Home: /
- Contract explorer: /contract/{chainId}/{address}
- Code hash lookup: /code/{hash}
- Selector dictionary: /selector/{selector}
- Standards index: /standards/{standard}

## Tools
- Address search: enter any Ethereum address to check verification across chains
- Bytecode twin matching: find identical deployments by keccak hash
- Selector resolution: decode function selectors, event topics, and custom errors
- Proxy analysis: EIP-1967/1167 detection with implementation history
- Raw on-chain data: runtime code hash, decoded event logs, proxy slot inspection
- Contract analysis: standards conformance with evidence, capabilities, ownership risk, and a plain-language summary