The Coinbase Maturity Rule (aka Output Lock Heights)

Coinbase 需要一天才算成熟。

Coinbase outputs (block rewards & fees) are "locked" and require 1,440 confirmations (i.e 24 hours worth of blocks added to the chain) before they mature sufficiently to be spendable. This is to reduce the risk of later txs being reversed if a chain reorganization occurs.

Bitcoin does something very similar, requiring 100 confirmations (Bitcoin blocks are every 10 minutes, Grin blocks are every 60 seconds) before mining rewards can be spent.

普通转账交易确认后就算成熟。

The maturity rule only applies to coinbase outputs, regular transaction outputs have an effective lock height of zero.