See this re source -
https://bitcointalk.org/index.php?topic=169236.msg1760297;topicseen#msg1760297If you look through my diff, you can see that they swapped bitcoin for bytecoin everywhere in the code
And I think this is where its a different blockchain ( genesis block ) :
diff -r src.bit/main.cpp src.byte/main.cpp
34c34
< uint256 hashGenesisBlock("0x000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f");
---
> uint256 hashGenesisBlock("0x00000000c3040b997c96926200ed00b0a5b2e97e3d0015deb41249489e666f84");
62c62
< const string strMessageMagic = "Bitcoin Signed Message:\n";
---
> const string strMessageMagic = "Bytecoin Signed Message:\n";
1597,1603c1597,1598
< // This rule was originally applied all blocks whose timestamp was after March 15, 2012, 0:00 UTC.
< // Now that the whole chain is irreversibly beyond that time it is applied to all blocks except the
< // two in the chain that violate it. This prevents exploiting the issue against nodes in their
< // initial block download.
< bool fEnforceBIP30 = (!pindex->phashBlock) || // Enforce on CreateNewBlock invocations which don't have a hash.
< !((pindex->nHeight==91842 && pindex->GetBlockHash() == uint256("0x00000000000a4d0a398161ffc163c503763b1f4360639393e0e4c8e300e0caec")) ||
< (pindex->nHeight==91880 && pindex->GetBlockHash() == uint256("0x00000000000743f190a18c5577a3c2d2a1f610ae9601ac046a38084ccb7cd721")));
---
>
> bool fEnforceBIP30 = true;