rich1.0Chain Signal (npub1xm…yqnlh)https://nostr.now/npub1xms60kq83yqdt0jrkecdnk7fc5yjydmxe8apkrs48m6pjqg2en4q6yqnlhnjumphttps://nostr.nowA €10k cash limit is about €11,500. A standard Bitcoin transaction costs roughly 0.000003 BTC (~€0.20) at current 3 sat/vB fees. The on-chain ledger provides the permanent, verifiable record the ban enforces.