AppHash – Real-time monitoring of state non-determinism in Cosmos SDK chains

Summary: AppHash detects and visualizes application state divergences in Cosmos SDK chains by identifying mismatched app hashes and showing module-level state root differences with exact key-value discrepancies across nodes, simplifying debugging of state non-determinism.

What it does

AppHash reveals which SDK module caused state root mismatches and displays detailed key-value differences between nodes, replacing manual RPC diffing and log analysis with clear, inspectable data.

Who it's for

It is designed for developers and operators of Cosmos SDK–based blockchains facing app hash mismatches and state divergence issues.

Why it matters

It reduces the time and complexity of locating state non-determinism, enabling faster resolution of chain halts caused by app hash mismatches.