Hi,

On Wed, Oct 19, 2022 at 6:34 AM mm-studios via bitcoin-dev <
bitcoin-dev@lists.linuxfoundation.org> wrote:

> Fully filled brick B0, with a hash that doesn't meet the difficulty rule,
> would be broadcasted and nodes would have it on in a separate fork as usual.
>

Check out the previous "weak block" proposals:
https://diyhpl.us/~bryan/irc/bitcoin/weak-blocks-links.2016-05-09.txt

- Bryan
https://twitter.com/kanzure