Aren't there no "from" addresses in btc? Is it possible to track btc still?
There are what I usually name "from" addresses and change addresses. A typical bitcoin transaction can look like this:
https://blockchain.info/tx/72e3dd987cc0cc31def333577e7539b85687d90db922698c08f5d4fef9bb9adeHere we have, I think, one "from" address and two "to" addresses one of which is (probably?) a change address, i.e. an address that belongs to the sender, so the sender sends the "change" back to itself.
Edit: It this case it appears that the change address is the same as the sender address. Guess it depends on the wallet software which practices are used.