Restrict duplicate metadata in a chain?

Question

Hi,

I'm trying to store a reference or hash value of a data in the blockchain using metadata functionality of the multichain.

I intend to use sendwithmetadata with 0 asset and add a hashvalue in the metadata field.

I there anyway by which I can restrict duplicate metadata being posted in the chain?

Answer 1

I'm afraid it's not currently possible to put a restriction on transaction metadata of this type.