OP_RETURN for data, prunable?

Question

Hi, when using OP_RETURN to store arbitrary data, can the node be configured to prune that data?

Ideally the data should not be part of the data used to generate the hash of the transaction similar to Bitcoin.

Answer 1

In MultiChain, as in bitcoin, the OP_RETURN data is definitely used to generate the hash of the transaction, otherwise we would have a serious security problem. However the output containing the OP_RETURN is pruned from the UTXO (unspent transaction output) set, in order to save space in the UTXO database.