Can you tell me where it is enforced?

The only place I found was here;
https://github.com/bitcoin/bitcoin/blob/master/src/validation.cpp#L1793

which doesn’t enforce it, all that code does is check that the txid is
unknown or fully spent.
And since the below idea from Russel would change the txid, it would seem no
full client would reject this.

Maybe its in a BIP, but I can’t find it in the code.

On Tuesday, 4 April 2017 16:59:12 CEST James Hilliard wrote:
> It is a consensus rule
> https://github.com/bitcoin/bips/blob/master/bip-0034.mediawiki
>
> On Tue, Apr 4, 2017 at 6:47 AM, Tom Zander via bitcoin-dev
>
> <bitcoin-dev@lists.linuxfoundation.org> wrote:
> > On Sunday, 2 April 2017 22:39:13 CEST Russell O'Connor via bitcoin-dev
> >
> > wrote:
> >>  Someone told me a while back that it would be more natural if we move
> >>  the
> >>
> >> nHeight from the coinbase script to the coinbase locktime.  Have you
> >> considered doing this?
> >
> > That change would not be a consensus change and thus free to make any
> > day.


--
Tom Zander
Blog: https://zander.github.io
Vlog: https://vimeo.com/channels/tomscryptochannel
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