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There are a number of circumstances where the notes can live "offline" without further contact with us -- the primary one we think of is gifting to non-crypto savvy family.

Our denominations are also meant to imply this -- we aren't making 1 BTC notes on purpose. The goal is to provide another tool for onboarding and holding crypto.

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How does gifting to non-crypto savvy family change whether the note works offline or not? Because they don't understand it so they don't verify that it wasn't spent? Sorry I don't follow, and I'm not just trying to crap on the idea.

In that circumstance they don't need to be online. The recipient can scan the note entirely offline, get the private key, create a transaction and broadcast it to the Bitcoin network when they are online.

Ah, so they just assume it wasn't spent already because it was a gift. Yeah might make a fun gift.

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