I did a quick check of Sci-hub, three weeks after they lost their sci-hub.io DNS name. It does appear to be totally dead now — in that the fallback TOR Onion address is 404-not-found today, and their two non-DNS URLs are also dead (in terms of still having a viable front-page, but being unable to handle any DOI article-fetch requests).
Sci-hub silenced?
13 Wednesday Dec 2017
Posted My general observations
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