Landlords take sealed encrypted rent offers, and nobody sees the others.
A housing coop in Lisbon takes encrypted offers for a flat; the winning offer is revealed only to the coop.
Let people offer what they can honestly pay for a home, without being pushed into a bidding war or exposing their number to anyone.
When a good flat comes up, landlords and housing coops get flooded with offers in public chats and portals. Applicants see each other's numbers and bid each other up, people who cannot keep raising drop out, and everyone's offer stays visible forever. Small landlords and coops want fair offers without running an auction in the open.
Everyone stakes a conviction, encrypted. The chain tallies it without ever seeing a single take. FHE on Base.
Governance by text-sized questions: one decision a week, answered in ten seconds, with real quorum.
Crowdfunding where backers get refunded by contract if the goal or the milestones are missed.
A shared house or club tracks who did the work, and the record becomes everyone's portable reliability score.
Lend the ladder, the drill, the tent: a street library of things with deposits held by contract.
Fund a public good with hours of your skill, not just money, and get matched like a donation.
A rotating savings circle (ajo, susu, chama) with payouts enforced by contract and trust scores for members.
Retro funding for the quiet helpers: the community nominates who mattered, a pot pays them.