{"type":"rich","version":"1.0","title":"SatsAndSports wrote","author_name":"SatsAndSports (npub1zt…wxm56)","author_url":"https://yabu.me/npub1zthq85gksjsjthv8h6rec2qeqs2mu0emrm9xknkhgw7hfl7csrnq6wxm56","provider_name":"njump","provider_url":"https://yabu.me","html":"chessu.cash\n\nSolve chess puzzles to get free ecash\n\n(Built in the pre-conference e-cash hackday)"}