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This directory contains specifications for the modules of the Cosmos SDK as well as Interchain Standards (ICS) and other specifications.

Cosmos SDK applications hold this state in a Merkle store. Updates to the store may be made during transactions and at the beginning and end of every block.

Cosmos SDK specifications

  • Store - The core Merkle store that holds the state.
  • Bech32 - Address format for Cosmos SDK applications.

Modules specifications

Go the module directory


For details on the underlying blockchain and p2p protocols, see the CometBFT specification.