When storing raw transactions on a stream, how could I know that that 'offer' is still valid?
I.e: Addr1_on_node1 creates an offer of 100:Asset1 for 200:Asset2 and publishes that data on a stream.
Another user (Addr2_on_node2) reads the stream and finds a whole bunch of offers.
He can then do a 'decoderawexchange' to get the details of each offer. Is there a way of knowing that that offer is still valid, and others have not 'completed' it ?