$ curl "http://api.rutracker.org/v1/get_tor_hash?by=topic_id&val=5591249"
{"result":{"5591249":"FE63F7FA266E8F3F812FF637EB9025413CB58D51"}}
+ # http://api.rutracker.org/v1/get_topic_id?by=hash&val=FE63F7FA266E8F3F812FF637EB9025413CB58D51
$ aria2c "magnet:?xt=urn:btih:FE63F7FA266E8F3F812FF637EB9025413CB58D51"
It is recommended to recompress it with Zstandard, to save the space and