A "Block" is a grouping of transactions, marked with a timestamp, and a fingerprint of the previous block. The block header is hashed to produce a proof of work, thereby validating the transactions. Valid blocks are added to the main blockchain by network consensus.
A Genesis Block is the first block in the blockchain, used to initialize the cryptocurrency.
-- Edited by admin on Wednesday 19th of December 2018 06:24:00 AM
Hi which is a Genesis Block creation time 2009-01-03 18:15:05 www.blockchain.com/btc/block-index/14849
or
Genesis Block BLOCK 20161BBF18EB6048
Friday, January 9th 2009, 6:54:25 GMT