>>1350225
https://en.wikipedia.org/wiki/Magnet_URI_scheme

You would start with the URN[xt=urn:btih:fffinfohashfff AND/OR xt=urn:btmh:fffinfohashv2fff] which contains the torrent infohash, a display name[dn=mytorrent] if you want, then a list of percent encoded trackers[tr=udp%3A%2F%2Ftracker.opentrackr.org%3A1337%2Fannounce]

magnet:?xt=urn:btih:72c83366e95dd44cc85f26198ecc55f0f4576ad4&dn=The-Fanimatrix-%28DivX-5.1-HQ%29.avi&tr=udp%3A%2F%2Ftracker.opentrackr.org%3A1337%2Fannounce&tr=https%3A%2F%2Ftracker.cutie.dating%3A443%2Fannounce

>>1350886
If the torrent you downloaded has no seeders then there is no one to download the metadata from unless you add that metadata from the torrent file instead.
Even then you would still not be able to download the file if it has no seeders.

>>1360905
Doing OK. Torrenting. Downloaded the worlds oldest torrent The Fanimatrix

>>1360919
That is base64 encoding, you can use any tool on your OS or online to decode.
https://www.glukhov.org/post/2025/04/base64
They decode to URLs which you can add to the default trackers plugin or just right click on a torrent & edit trackers.

>>1374034
It's just you.