Amateur Radio

I have a small dilemma regarding logging a QSO, and I'm wondering if you can guide me through it. I made a contact the other day while doing POTA, but I did not capture the entire callsign. The error was only revealed after I saw their re-spot on the POTA site; if it weren't for that small glimpse, I would never know, and we'd never confirm in QRZ.

The Eagle Scout in me suggests that I should not change my logs based on the 3rd party information, but my QSO sent me a QRZ confirmation request.

On the other hand, borrowing from aviation, I am keen to "use all available resources", recognizing that so long as we have the tech and tools, we should use them, even if that may fly in the face of radio purity.

What say ye?