How txid in example was created?

Question

I have studied the site https://www.multichain.com/developers/cold-nodes-wallets/ and I don't understand how the txid was constructed in the hot node.
Please, could you explain me what hex was used to get the "txid" : "998d1c901447c87698ff7a1c5cab64ad7372d49c71c88446f83e21d54ae7d637" in the published example.

Answer 1

The txid is retrieved in step 3 of those instructions – using decoderawtransaction on the created (by as yet unsigned) raw transaction.