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I've been working on a bitcoin miner that uses BIP-0034 (block v2).

I'm confused about the coinbase transaction of block v2. Does block v2 only accept P2PKH type of address to allow me to receive a reward for solving a block? Because the first block v2 uses P2PKH address on the coinbase tx.

So my question is can I use other types of address for coinbase transaction inside block v2 or I can only use the P2PKH address?

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No, there is no restriction. Any transaction (including coinbase transactions) can create any output type. The block reward can be spent to P2PK, P2PKH, P2SH, P2SH-P2WPKH, P2SH-P2WSH, P2WPKH, P2WSH, P2TR, or even a bare script regardless of the version of the block.

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  • wdym sir? sorry, i dont understand
    – just.callme.client
    Commented Jan 10, 2023 at 15:46
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    The answer to your question is "no": there is no restriction on the type of outputs/ardresses a coinbase transaction can pay to, in BIP34 or elsewhere.
    – Pieter Wuille
    Commented Jan 10, 2023 at 16:22
  • so thats mean i can only use P2PKH only right?
    – just.callme.client
    Commented Jan 11, 2023 at 6:54
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    No, you can use any type of address.
    – Murch ♦
    Commented Jan 11, 2023 at 13:17

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