# Bitcoin magzine

By [Thirteen001](https://paragraph.com/@thirteen001) · 2021-12-06

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Between mid-October 2021 until now, lots of unknown hashrate (stealth miners) has been very prominent on the [#Bitcoin](https://twitter.com/hashtag/Bitcoin?src=hashtag_click) network producing many blocks.

Since 2009 stealth miners have found 226,000 [$BTC](https://twitter.com/search?q=%24BTC&src=cashtag_click) but during the last six months only 1,957 block rewards (12,200ish BTC).

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*Originally published on [Thirteen001](https://paragraph.com/@thirteen001/bitcoin-magzine)*