Chapter 11

Interoperability Standards

Point-to-point bridges multiply with every new chain — each pairing is another contract, another validator set, another thing to audit. The industry is pushing toward standards and abstractions that hide that complexity from users while keeping security visible to builders.

Cosmos IBC connects Tendermint chains through a standardized packet format and light client verification — one of the more mature interoperability stacks outside Ethereum. Within Ethereum's orbit, shared sequencing, based rollups, and restaked validation aim to align security across L2s.

Better UX does not automatically mean better trust. Seamless multichain flows can obscure which bridge, pool, or validator set actually moved your funds. Read the stack, not just the button label.