<p>Since Bitcoin Classic is a fork of Bitcoin Core, this should indeed be possible. The problem though is that, should Bitcoin Classic switch to larger blocks and Bitcoin Core stick with small blocks then it will not be possible to switch back without Bitcoin Core downloading the whole chain again. But in that case we are quite in trouble anyway :-)</p>

CC BY-SA 3.0
2016-03-12T16:57:14.560Z
2016-03-12T16:57:14.560Z
cdecker
<p>I have three full-nodes running Core 0.12.0 that I'm considering moving over to Classic.</p>

<p>Am I right in thinking that Classic is binary-compatible with an existing blockchain download?</p>

<p>Would I be able to just uninstall bitcoind from the Core PPA and install it again using the Classic PPA?</p>

CC BY-SA 3.0
2016-03-12T20:15:32.120Z
Removed a few OT comments. Let's calm down, folks.
Nick ODell
<bitcoin-core><bitcoin-classic>
Is Bitcoin Classic binary-compatible with Bitcoin Core?
Craig Watson
# Is Bitcoin Classic binary-compatible with Bitcoin Core?

(Asked by: username_0 on 2016-03-12)

I have three full-nodes running Core 0.12.0 that I'm considering moving over to Classic.

Am I right in thinking that Classic is binary-compatible with an existing blockchain download?

Would I be able to just uninstall bitcoind from the Core PPA and install it again using the Classic PPA?

**Tags:** bitcoin-core, bitcoin-classic

> **Comments:**
> **username_1**: Removed a few OT comments. Let's calm down, folks.  

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## 1 answers

### Answer by username_2 on 2016-03-12. Score: 1 | Accepted answer

Since Bitcoin Classic is a fork of Bitcoin Core, this should indeed be possible. The problem though is that, should Bitcoin Classic switch to larger blocks and Bitcoin Core stick with small blocks then it will not be possible to switch back without Bitcoin Core downloading the whole chain again. But in that case we are quite in trouble anyway :-)


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