Coinbase Maturity
Consensus● Common
The 100-block waiting period before coinbase outputs can be spent. Prevents issues from chain reorganizations where a miner's reward could disappear if their block becomes stale.
Technical Notes
Coinbase tx output unspendable until 100 confirmations. Protects against: reorg invalidating coinbase, building long chains on potentially stale blocks. Oldest consensus rule, since original release.
Metadata
Visibility: Public
Created:1/3/2026by System