user98008: What is "generate" as a bitcoin transaction type? Why are "generate" transactions labeled as "immature" for 100 blocks? Is this type of Bitcoin transaction spendable?

user3667: "Generate" transactions are coinbase transactions. These are a special type of transaction that is included in a block by a miner. They can not exist outside of a block. They generate new coins to an address configured by the miner. Those coins can not be spent until they have 100 confirmations. The reason for this is to prevent a messy scenario in which a block becomes disconnected or is no longer in the most-work valid chain, meaning the newly generated coins do not exist on the ledger any more.

98008: <p>What is &quot;generate&quot; as a bitcoin transaction type? Why are &quot;generate&quot; transactions labeled as &quot;immature&quot; for 100 blocks? Is this type of Bitcoin transaction spendable?</p>
 3667: <p>&quot;Generate&quot; transactions are coinbase transactions. These are a special type of transaction that is included in a block by a miner. They can not exist outside of a block. They generate new coins to an address configured by the miner. Those coins can not be spent until they have 100 confirmations. The reason for this is to prevent a messy scenario in which a block becomes disconnected or is no longer in the most-work valid chain, meaning the newly generated coins do not exist on the ledger any more.</p>
