Bitcoin Genesis Block | Block 0 : Hidden Things You May Have Missed

Hex code of Bitcoin Genesis Block in India
Hex code of Bitcoin Genesis Block | Blockchainblogging.com

A genesis block is the very first block of any Blockchain also known as Block 0. The content of genesis block is always hardcoded into the software of the application that uses a particular blockchain technology. 

Use of Genesis Block

Genesis Block defines all the variables needed to create new blocks in the blockchain. Every Blockchain is a collection of data blocks connected together by the address of the previous block in encrypted data format in chronological order.

Each block contains an encrypted hash of the previous block, a timestamp, index, data, and Merkle root. Genesis Block is the very first block of these connected blocks having its previous address 0. The new blocks identified after genesis block have index (block height) incremented by 1 with time.

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Image Source: Researchgate

Bitcoin Genesis Block Elements

Hex code of Genesis Block Explained
Bitcoin Genesis Block | Block 0 : Hidden Things You May Have Missed 11

Satoshi Nakamoto, mentioned all the paraments of Genesis Block in the comment section of his code for bitcoin blockchain from line 1613 to 1627 which got generated when this genesis block hardcode got executed. 

Comment explaining Genesis Block parameters in Bitcoin Blockchain code by Satoshi Nakamoto | blockchainblogging.com
Comment explaining Genesis Block parameters in Bitcoin Blockchain code by Satoshi Nakamoto

Reference: https://sourceforge.net/p/bitcoin/code/133/tree/trunk/main.cpp#l1629

The bitcoin genesis block has the following main variables or functions, which are recreated in every block generated in bitcoin blockchain thereafter.

  1. CBlock(hash,ver,hashPrevBlock,hashMerkleRoot,nTime,nBits,nNonce,vtx)
  2. CTransaction(hash,ver,vin.size,vout.size,nLockTime)
  3. CTxIn(COutPoint(),coinbase)
  4. CTxOut(nValue,scriptPubKey)
  5. vMekleTree

Timestamp in Bitcoin Genesis Block

After the execution of the code the genesis block got created at UNIX Timestamp:1231026300, GMT: Saturday, January 3, 2009 11:45:00 PM.  

This year, On January 03,2021 bitcoin genesis block has completed 12 years.

UNIX TIMESTAMP TO GMT TIME CONVERSION | blockchainblogging.com
UNIX TIMESTAMP TO GMT TIME CONVERSION

Reference: https://www.epochconverter.com/

Data in Bitcoin Genesis Block

SHA256 Hash generated of the Data written in Bitcoin Blockchain Genesis Block is found to be in coinbase parameter

coinbase 04ffff001d0104455468652054696d65732030332f4a616e2f323030392043656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73 
SHA256 Hash found in Bitcoin Genesis Block under coinbase parameter  | Blockchainblogging.com
SHA256 Hash found in Bitcoin Genesis Block under coinbase parameter

Which on decoding gives the Text “The Times 03/Jan/2009 Chancellor on brink of second bailout for banks” mentioning the headline of THE TIMES Newspaper published in the United Kingdom on Saturday January 03,2009.  

The Times | United Kingdom, headline of January 03,2009 | Blockchainblogging.com
The Times headline of January 03,2009 | | United Kingdom

Breaking Raw Hex Version of Bitcoin Genesis Blockchain 

Raw Hex Version of Bitcoin Genesis Block | Blockchainblogging.com
Raw Hex Version of Bitcoin Genesis Block

Breaking the Raw Hex Version of Bitcoin Genesis Block into understandable content it gives all details of version, previous block hex, Merkle root, timestamp, bits, nonce, transaction detail, input data, reward BTC etc.

p76sJnJrrqgEY3coQLg5yJ00KNZa0ztEo8q3wATNUYJO11oHBGIbt7oijhpEDjaev7L1zd0dfQ89igRnsMSMqU3fGqkeSojlTNbsh MSoVeYc5HHQLTGYbyv8Gk1GNaIZ0BmegBG
Parameters List

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