BTC/ARS
I think this uses the official rate, as you mentioned earlier. Maybe this is useful to you?

![image](https://m.stacker.news/28878)
here's a mini flag
![image](https://m.stacker.news/28879)

No, these aren’t published anywhere, individuals set the price.  It’s just derivable from Bitcoin market prices.

Enemy_of_the_state

I'm sorry I was not able to help you. It might be because Blue market rate isn't published on the internet(like you said street value). Surely, they have a site among the street vendors?

econ

Is there an online tool that shows true currency exchange rates?

I'm sorry I was not able to help you. It might be because Blue market rate isn't published on the internet(like you said street value). Surely, they have a site among the street vendors? 