False, belief that you can use them later for goods and services is what gives it its value.
And you can only use them for goods and services if there is someone there making the transaction work, i.e, miners.
That's how translations are processed but that isn't what makes a bitcoin valuable.
Sure an increase in difficulty makes it harder for an attacker so people may have more faith that their bitcoins will still be able to purchase goods and services in the future.