Another thing to note about refunds. BIP70 had a refund field. See bips/bip-0070.mediawiki at c58a428fb68e63eb643da7f93b488d211e077b32 · bitcoin/bips · GitHub . It worked quite well for things like The Bitcoin Fluid Dispenser .
Another thing to note about refunds. BIP70 had a refund field. See bips/bip-0070.mediawiki at c58a428fb68e63eb643da7f93b488d211e077b32 · bitcoin/bips · GitHub . It worked quite well for things like The Bitcoin Fluid Dispenser .