nostr:nprofile1qqsw3znfr6vdnxrujezjrhlkqqjlvpcqx79ys7gcph9mkjjsy7zsgygpz4mhxue69uhhyetvv9ujuerpd46hxtnfduhsz8thwden5te0dehhxarj9ekh2arfdeuhwctvd3jhgtnrdakj7qgkwaehxw309ajkgetw9ehx7um5wghxcctwvshspg7dju nostr:nprofile1qqs9v9et20mnqagtgrnrc5qmzcrgmkt2y3087p23vawqlmyczlhfdcqpzpmhxue69uhkummnw3ezuamfdejszxmhwden5te0vejk2ern9ehx7um5wghxyctwvshhq6trwvq3vamnwvaz7tmjv4kxz7fwdehhxarj9e3xzmnyrwt363 I found a way to do substraction without variables on calculator mode (Coldcard Q). Put space before (and after?) the minus sign. Then it isn't interpreted as a login attenpt.

I wonder: If you share the result of a subtraction, how easy or difficult would it be for someone to guess your PIN?