Mike Ramen gives you an address to send your 1 BTC contribution to:

bc1qgghq08syehkym52ueu9nl5x8gth23vr8hurv9dyfcmhaqk4lrlgs28epwj

Hm, that address looks a lot longer than yours! I wonder why...

Anyway, we need to create and sign a transaction that sends one of your 1.61 BTC to this address. We looked at Satoshi's transaction structure in chapter 5 but your transaction will be a bit different. Technology has improved a lot since block 170, and Bitcoin transactions are now version 2, and follow a new protocol called Segregated Witness.