Blockchain & Cryptocurrency Glossary

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Bridge Router

1 min read
Pronunciation
[brij roo-ter]
Analogy
Like a GPS system that picks the fastest route across different roads and highways to reach your destination.
Definition
A smart contract or off‑chain service that selects the optimal path and mechanism for transferring assets across multiple bridges or chains.
Key Points Intro
Bridge routers aggregate multiple bridging options to minimize cost, latency, and risk.
Key Points

Pathfinding: Evaluates liquidity, fees, and security of each bridge.

Multi‑hop: Chains transfers across several bridges in one transaction.

Fallback logic: Switches to alternative routes on failure.

User abstraction: Presents single unified interface.

Example
A DeFi wallet uses a bridge router to split an asset transfer: part via a high‑security bridge, part via a low‑fee bridge, then reassembles on destination chain.
Technical Deep Dive
Routers query on‑chain registries for available bridges, fetch real‑time quotes via oracles or APIs, then deploy a batch transaction that executes sequential `lock–mint–unlock` steps across contracts.
Security Warning
Complex multi‑hop transactions increase attack surface; ensure atomicity via smart contract escrow and revert logic.
Caveat
Optimal routing may change rapidly; real‑time monitoring and dynamic re‑quoting are required.
Related Terms
Aggregators' Network
Atomic Swap
Oracle

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