Why are mined Monero coins locked for 60 blocks?

Newly mined Monero is locked for 60 blocks so the network has time to settle on the block that created it before you can spend the reward. With a block arriving about every two minutes, that means roughly two hours—not an exact countdown.

Why a mining reward needs extra protection

When you mine a Monero block, that block includes a special transaction that pays the mining reward. It is called a coinbase transaction. Despite the name, it has nothing to do with the Coinbase exchange.

Unlike an ordinary payment, this reward depends on the block itself remaining part of Monero’s accepted transaction history.

Sometimes, two miners find competing blocks close together. Different parts of the network may briefly see different versions of the latest history. As more blocks arrive, the network follows the valid chain with the most accumulated mining work.

Switching to that chain is called a chain reorganization, or “reorg.” If the block containing your reward gets left out, that reward is no longer valid.

What the 60-block wait protects against

Without a waiting period, you could spend a new mining reward immediately. Someone receiving that payment could spend it again. If the original reward later disappeared in a reorg, those later payments would also lose their foundation.

The lock keeps freshly created rewards out of circulation while more blocks build on top of them. Each additional block makes replacing that part of the chain more difficult.

The important points are:

• The lock is a Monero network rule, not a hold imposed by your wallet.
• It applies to the newly mined reward, including the fees paid through that reward transaction.
• It reduces the risk from reorganizations. It does not make an unusually deep reorg impossible.

There is nothing magical about the number 60. It is the maturity period built into Monero’s rules: a buffer between creating a reward and allowing you to spend it.

Why “two hours” is only an estimate

Monero targets an average block time of about two minutes. Multiplying 60 blocks by two minutes gives you the roughly two-hour estimate.

But blocks do not arrive on a fixed schedule. Some appear quickly; others take longer. The lock follows the number of blocks added to the chain, not the clock on your phone.

Your wallet may show the reward in your total balance before it appears in your unlocked balance, meaning the amount you can spend. Keep your wallet synchronized with the network so it can recognize when the reward becomes spendable.

Does this apply to your mining payout?

That depends on how you receive it.

• A direct block reward: The 60-block maturity rule applies.
• A direct share of a block reward, such as a P2Pool payout: It is also newly mined money, so the maturity rule applies.
• An ordinary transfer from a mining pool or browser-mining service: Your received payment normally needs 10 confirmations instead. The service may separately impose a payout threshold or schedule.

You cannot pay a fee to bypass the 60-block rule. Anyone offering to “unlock” a genuine immature reward for payment is misleading you.

The bottom line

The 60-block lock gives a mining reward time to become firmly established in Monero’s transaction history before you spend it. Expect roughly two hours for a direct reward, and distinguish that network rule from any separate payout delay imposed by your mining service.