Concepts
Core concepts behind Across Protocol's crosschain architecture.
Learn the key ideas behind how Across works — from intents to settlement to the protocol's hub-and-spoke architecture.
What are Crosschain Intents?
How intent-based bridging differs from traditional bridges and why it matters.
Intents Architecture
Hub-and-spoke model with HubPool on Ethereum and SpokePools on each chain.
Intent Lifecycle
Step-by-step flow from deposit to fill to settlement.
Across V4
What's new in V4 — ZK proofs, permissionless chain expansion, and more.
ERC-7683
The crosschain intent order standard in production on Across.