Cosmos Hub is the original Tendermint‑powered chain that connects more than 80 Cosmos zones via the Inter‑Blockchain Communication (IBC) protocol. ATOM stakers secure the Hub and, under Interchain Security (ICS), can rent their validator set to consumer chains like Neutron. Governance recently passed the ‘ATOM 2.0 Alignment’ roadmap, pivoting issuance toward securing interchain services rather than inflationary rewards.