# Competency

Author: @emrebeyler
Permlink: competency
Created: 2020-03-20T08:45:24
Category: steem
Canonical URL: https://peakd.com/steem/@emrebeyler/competency

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```
Encountered block num collision at block 41812326 due to a fork, witnesses are: [["*","2020-03-20T08:38:03"],["*","2020-03-20T08:38:03"]]
```
***

So this is what do we see in `steemd` logs for a while. A **fresh** top20 consensus witness, thanks to the @justinsunsteemit, started double producing. Seems like they even don't know how to produce blocks properly. [Here](https://steempeak.com/witness-category/@timcliff/blockchain-101-why-double-producing-is-bad) is a good post about double producing.

I wonder what happens to the blockchain once the competent witnesses are totally gone and all the blockchain has this kind of witnesses don't even know what they're doing.