On Aug 29, 2015 7:02 PM, "Chun Wang via bitcoin-dev" <bitcoin-dev@lists.linuxfoundation.org> wrote:
>
> On Sun, Aug 30, 2015 at 4:10 AM, Jorge Timón
> <bitcoin-dev@lists.linuxfoundation.org> wrote:
> /tx/3b95a766d7a99b87188d6875c8484cb2b310b78459b7816d4dfc3f0f7e04281a?chain=000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943
> >
> > (a tx in testnet)
> >
> > /block/00000000000000000b0d504d142ac8bdd1a2721d19f423a8146d0d6de882167b?chain=000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f
>
> Some altcoins (LTC and FTC for example) have the same genesis block hash.

That's obviously a design mistake in FTC, but it's not unsolvable. FTC could move their genesis block to the next block (or the first one that is not identical to LTC's).

Bitcoin and all its test chains have different genesis blocks, so I'm not sure FTC should be a concern for a BIP anyway...