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Genesis Block

blockchain
event

The first block in a blockchain, hardcoded as the starting point for all later blocks and the ledger's initial state.

1
concept

The genesis block is the first block recognized by a blockchain's software. It has no previous block to reference, so clients treat it as a trusted starting point for validating every later block.

2
technical

Genesis blocks are usually embedded directly in node software with fixed parameters such as timestamp, difficulty, coinbase transaction, and hash. Normal validation links every later block back to this root.

3
significance

A genesis block can signal the launch conditions and initial distribution of a network. Messages, timestamps, and public launch procedures are often used to build trust that the chain did not begin with hidden history.

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All terms and definitions may update as the Cryptionary improves.