<p>all coinbase transactions are timelocked from when they are mined, so they are not spendable for a few days i believe. by that time, the block is near impossible to reverse and you can spend the new coins. </p>

CC BY-SA 3.0
2017-11-17T17:33:00.897Z
Correct, they are not mature until 100 blocks have been mined on top
meshcollider
CC BY-SA 3.0
2017-11-17T16:34:44.770Z
2017-11-17T16:34:44.770Z
Sean Byrne
<p>lets say i gained bitcoins for mining a block and then spent them on a transaction, then later the chain im using gets replaced because of a longer chain. assuming the block difference is up to where i got my spent bitcoins, what will happen to the transactions and coins i gained and spent from mining in my dropped chain?</p>

<blockchain><blockchain-fork><immature-coins>
what happens to spent bitcoins gained from a block of a soon to be dropped chain as a result of a fork?
artemis
# what happens to spent bitcoins gained from a block of a soon to be dropped chain as a result of a fork?

(Asked by: username_0 on 2017-11-17)

lets say i gained bitcoins for mining a block and then spent them on a transaction, then later the chain im using gets replaced because of a longer chain. assuming the block difference is up to where i got my spent bitcoins, what will happen to the transactions and coins i gained and spent from mining in my dropped chain?

**Tags:** blockchain, blockchain-fork, immature-coins


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## 1 answers

### Answer by username_1 on 2017-11-17. Score: 1 | Accepted answer

all coinbase transactions are timelocked from when they are mined, so they are not spendable for a few days i believe. by that time, the block is near impossible to reverse and you can spend the new coins.

> **Comments:**
> **username_2**: Correct, they are not mature until 100 blocks have been mined on top  

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