Are the two sentences correct or is one of them incorrect?

1)Five billion dollars is earmarked for the project. 2)Five billion dollars has been earmarked for the project.

Also, how do they differ in meaning? I know dollars are countable. So I think both 'is' and 'has been' are correct here.

Are the two sentences correct or is one of them incorrect?

1. Five billion dollars is earmarked for the project.
2. Five billion dollars has been earmarked for the project.

I know dollars are countable. So I think both 'is' and 'has been' are correct here.

Also, do they differ in meaning?

Are the two sentences correct or is one of them incorrect?

1)Five crore rupees is earmarked for the project. 2)Five crore rupees has been earmarked for the project.

Also, how do they differ in meaning? I know rupees are countable. So I think both 'is' and 'has been' are correct here.

Are the two sentences correct or is one of them incorrect?

1)Five billion dollars is earmarked for the project. 2)Five billion dollars has been earmarked for the project.

Also, how do they differ in meaning? I know dollars are countable. So I think both 'is' and 'has been' are correct here.