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I'm assuming you just hosted the uploaded files in the local ifps? No other ifps nodes pin those files?

Are they free?
If it is free, will the files be persistent in those IPFS nodes? What if they triggered a GC?
If not free, who paid?
Sorry, maybe a silly question, just new to IPFS.
Thanks for your time, and nice work!

I am quite curious in this part.. How is this implemented in your source code specifically? I can't find where the "several ipfs nodes" come from in the source.
And what benefits bring to them if they provide free storage?
Just couldn't believe there is free lunch..

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