It uses a light client that can broadcast later. I queued up a payment while in airplane mode, and it sent once I connected. That’s a feature I never knew I needed. In emerging markets, connectivity is spotty. Being able to transact offline and sync later is game‑changing. Satoshi assumed always‑on internet, but the real world is messier. Nimiq adapted. If you want to see how offline transactions work, this technical note is surprisingly clear.