we have a transaction that writes to stream passed from another party for us to sign, but before publishing, we want to verify the data by parsing the contents of decoderawtransaction. but the output of decoderawtransaction does not display the full stream data because it is too large, instead it gives us the txid and vout. however, the txid and vout given cannot be retrieved from the blockchain (presumably because the stream item has not yet been published)