Foldbank · the smallest deposit folds ($FOLDBANK)

The bank opens the minute $FOLDBANK is live. Nine rungs, one deposit per wallet, 0.001 ETH or more. The first deposit takes rung one; the second starts a 15-minute timer. At zero the smallest deposit folds and its ETH splits evenly to every deposit left. The last deposit in takes the bank.

Round 1 ladder 0 of 9 rungs · largest at the top

folds next — rung 1 is the first move

Folded nothing yet

How a bank runs

Deposit. 0.001 ETH or more while the bank has room and nothing has folded yet. One deposit per wallet, nine per bank, for holders of 10,000 $FOLDBANK.
Timer. The round timer starts when the second deposit lands. At zero the smallest deposit folds. Tie: the later deposit folds.
Split. The folded ETH splits evenly to every deposit still standing. No cut.
Top up. Add ETH to your deposit before the timer hits zero to climb off the bottom rung.
Last in. One deposit left: the bank closes and it takes its own ETH back plus every split it collected. A new bank opens.

Worked round

Nine in, the smallest 0.004 ETH. Round 1: it folds, 0.004 / 8 = 0.0005 to each of eight. Round 2: the next smallest, 0.006, folds, 0.006 / 7 = 0.000857 to each of seven. Eight rounds in, one deposit is left and takes the bank.

Anyone can call the fold once the timer is at zero; the contract picks the smallest deposit, never a person. Credits are pulled with the pull button. A deposit alone in a bank before anything folds can walk with its ETH.