Thank nostr:nprofile1qqsd3uut39959acqsvzua0chkjyj2e20y2ccp3vxrwq3g8uqenmjsjqpz9mhxue69uhkummnw3ezuamfdejj7qgwwaehxw309ahx7uewd3hkctcprfmhxue69uhhqatjv9mxjerp9ehx7um5wghxcctwvshs7vprz3 for teaching me. 

I'm using it now to send zaps. It works well.