Technical Definition

Genesis Block

A genesis block is the first block of a blockchain and the starting point from which later blocks are linked.

By Crypto University Editorial
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✦ Key Insight

It anchors the chain's history and network identity.

✕ Common Misconceptions

Genesis-block rules and numbering conventions differ across networks.

Detailed Explanation

It is typically defined as part of the network's initial configuration rather than mined or produced like an ordinary later block.

In Practice

“Bitcoin's blockchain begins with its 2009 genesis block.”

Dig Deeper

Blockchain

A shared, append-only record of transactions maintained by many independent computers at once.

Mainnet

A mainnet is the live production blockchain where transactions involve assets and state with real economic value.

Block

A block is a data structure that groups validated blockchain transactions or state changes and links them into the chain's history.

Block Height

Block height is a block's numerical position in a blockchain sequence measured from the chain's beginning.

Bitcoin

The first cryptocurrency, launched in 2009, with a supply capped at 21 million coins.