According to the latest from CBECI, Iran's share of BTC hashrate has steadily increased over summer of 2021.
There was a blanket ban on 'crypto mining' (read: GPU farms for alts as well as BTC) announced May 26th, lasting through September 22nd, sooo...
https://www.jbs.cam.ac.uk/insight/2021/geographic-shift/
@arbedout does the graph show an Iran increase over summer 2021? It doesn't look like it to my eyes? Also given the Ireland/Germany data I guess this is partly or mostly from IP adds?
@waxwing the graph doesn't do a great job of illustrating it but the article explicitly states an increase of 3.11% for Iran's hashrate(during a period where there should have been a marked decrease if not total collapse)
and yep - apparently they use maxmind's geoip database to correlate ip addresses to locations
