Replying to Avatar sovereign.self.reliance

Thank you both for going in depth in the discussion and taking the time to do so. I am learning and that was in some part the goal of the post.

This is how i currently have it mapped in my head... The mempool needs all the data locally to validate the transaction. Which is a cache. That is temporary. That makes good sense. Once the mempool is validated and the transaction can be stored on the harddrive you can prune the data for longterm storage (remove the OP_RETURN data).
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gsovereignty 2mo ago

Not exactly, but you're almost there.

Mempool is a marketplace where transactions compete to be put into a block (based on fees).

Once a miner puts a transaction into a block, your node needs to fetch that transaction in order to validate the block (in case the miner is lying/cheating).

Once you've done that you can throw away the transaction (especially if it's an Op_return because they are unspendable anyway).

Some people run nodes that discard all transactions except for those which are relevant to their own coins or in the current UTXO set).

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sovereign.self.reliance 2mo ago

Thank you gsovereignty!