<p>Both.</p>
<p>The consensus rules allow miners to claim <strong>up to</strong> a certain amount of coinbase output value, namely the sum of the fees of all (non-coinbase) transactions in the block plus the subsidy (which halves every 210000 blocks).</p>
<p>The miner does have to actually construct that coinbase transaction to claim these funds, and they are allowed to claim less than what is allowed. If that happens, the missed amount is permanently lost.</p>

CC BY-SA 4.0
2023-03-04T21:56:17.960Z
2023-03-04T21:56:17.960Z
Pieter Wuille
<p>When the miners try to extract the block with the <strong>submitblock</strong> method, do they determine the <strong>amount(value)</strong> of <strong>coinbase</strong> by themselves?
Or does the network automatically give them some amount as a reward?</p>
<p><em>Thanks for any advice.</em></p>
<p><em>best regards,</em></p>

<mining-reward><coinbase-transaction>
Does the miner determine the amount of coinbase transactions manually?
Ali
# Does the miner determine the amount of coinbase transactions manually?

(Asked by: username_0 on 2023-03-04)

When the miners try to extract the block with the **submitblock** method, do they determine the **amount(value)** of **coinbase** by themselves?
Or does the network automatically give them some amount as a reward?

*Thanks for any advice.*

*best regards,*

**Tags:** mining-reward, coinbase-transaction


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## 1 answers

### Answer by username_1 on 2023-03-04. Score: 2 | Accepted answer

Both.

The consensus rules allow miners to claim **up to** a certain amount of coinbase output value, namely the sum of the fees of all (non-coinbase) transactions in the block plus the subsidy (which halves every 210000 blocks).

The miner does have to actually construct that coinbase transaction to claim these funds, and they are allowed to claim less than what is allowed. If that happens, the missed amount is permanently lost.


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