The odds of you getting your own IPv4 address are pretty low, unless seedboxes have very different rules than I'd expect. Presumably you have a shared IP behind NAT, and they forward ports (not unlike a good VPN)
In that case, they would need the IP address, incoming port, and a very specific timestamp.
I post this every time someone is looking for "free speech", and it has been completely relevant every single time.
https://m.xkcd.com/1357/