Skip to content

Instantly share code, notes, and snippets.

@Yarpii
Forked from dmikey/litecoin genesis block
Created June 22, 2018 11:00
Show Gist options
  • Star 0 You must be signed in to star a gist
  • Fork 0 You must be signed in to fork a gist
  • Save Yarpii/0c5877ea45fa79b076b23d6617f3ab24 to your computer and use it in GitHub Desktop.
Save Yarpii/0c5877ea45fa79b076b23d6617f3ab24 to your computer and use it in GitHub Desktop.
create litecoin genesis block, the missing code
assert(block.hashMerkleRoot == uint256("0x38ca78a781d3c571a681ea2241ffb1e0d89bd1ecd3499f1bf6edeaa8751e7151"));
// If genesis block hash does not match, then generate new genesis hash.
if (false && block.GetHash() != hashGenesisBlock)
{
printf("Searching for genesis block...\n");
// This will figure out a valid hash and Nonce if you're
// creating a different genesis block:
uint256 hashTarget = CBigNum().SetCompact(block.nBits).getuint256();
uint256 thash;
char scratchpad[SCRYPT_SCRATCHPAD_SIZE];
loop
{
scrypt_1024_1_1_256_sp_generic(BEGIN(block.nVersion), BEGIN(thash), scratchpad);
if (thash <= hashTarget)
break;
if ((block.nNonce & 0xFFF) == 0)
{
printf("nonce %08X: hash = %s (target = %s)\n", block.nNonce, thash.ToString().c_str(), hashTarget.ToString().c_str());
}
++block.nNonce;
if (block.nNonce == 0)
{
printf("NONCE WRAPPED, incrementing time\n");
++block.nTime;
}
}
printf("block.nTime = %u \n", block.nTime);
printf("block.nNonce = %u \n", block.nNonce);
printf("block.GetHash = %s\n", block.GetHash().ToString().c_str());
}
block.print();
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment