Penumbra is private by default L1 proof of stake blockchain. This includes private transfers, staking, trading, custody, and governance, making it a comprehensive privacy-focused blockchain solution.Penumbra integrates with the Inter-Blockchain Communication (IBC) protocol, allowing for decentralized and private token transfers between IBC-compatible chains and Penumbra's multi-asset shielded pool.Penumbra is pitched as a reimagination of the original Cosmos vision but with privacy at its core, aiming to reshape how privacy is handled in blockchain transactions and interactions.