When my key clients and suppliers are on bitcoin and I don't need a bank account anymore, I will stamp this as a signature on account closure papers.

nostr:nevent1qqs2pg0arq8lks07argygsj72sh53v74edlvrhs07360tpgpc3dtl6gppamhxue69uhkummnw3ezumt0d5pzpqlaql0fka3nxnxf63hj0pwz2k8xct4tle7scmkzz3n8ewhv2r28qvzqqqqqqyrreshx