Genesis block

The genesis block is the first block in the blockchain of Bitcoin. The creation of the genesis block marked the start of Bitcoin. It is the common ancestor of all the blocks in the blockchain. It is statically encoded within the Bitcoin client software and cannot be altered. Every node in the blockchain of Bitcoin acknowledges the genesis block's hash and structure, the time of its creation, and the single transaction it contains. Following is the static code written in the Bitcoin source code, which describes the creation of the genesis block with static parameters pszTimestamp, genesisOutputScript, nTime, nNonce, nBits, and nVersion. Here is the snippet of this code in the Bitcoin repository:

static CBlock CreateGenesisBlock(uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward)
 {
 const char* pszTimestamp = "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks";
 const CScript genesisOutputScript = CScript() << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f") << OP_CHECKSIG;
 return CreateGenesisBlock(pszTimestamp, genesisOutputScript, nTime, nNonce, nBits, nVersion, genesisReward);
 }