this mean (also via 301-shorturls) : a post in blogger post we generate with shorturl ?create a blogger.com site(using new mail) and create new post with backlinks which you want to index thn ad your blog in search consol and submit that post URL for indexing. Thats it (the free and fastest way to index backlink according to me)
check the url for indexing every time when have new links, just change them and check the url in search console again
We only need 1 post or every post with our backlink ? 1 backlink - 1 post bloggger ? or 1 post blogger = many link every backlink has indexed we change the link with shorturl service ?