[rfugger]

Ripple contains a Bitcoin-like cryptocurrency called XRP that only takes a few seconds to confirm transactions and does not require mining:

https://ripple.com/

https://ripple.com/wiki/Introduction_to_Ripple_for_Bitcoiner...

It also allows accounting in any units.

[oleganza]

Ripple moves IOUs based on trust, not hard gold-like asset.

[rfugger]

XRP is trustless, like Bitcoin.