Slab Market

Launch on Robinhood Chain testnet

Build your market

Pick your cards, choose the fee, and your wallet sends the launch. Every market opens at 1.6859 ETH. Fees fill a prize pot for a holder to win.

How a market works on Robinhood Chain testnet6 rules
  1. 1Every trade in a market's pool pays 2% or 4%, chosen at launch and fixed.
  2. 21.5% (or 3.5%) fills the market's prize pot. 0.5% goes to Slab Market. Creators get nothing.
  3. 3Transfers between wallets and trades in other pools pay nothing and fill nothing.
  4. 4The odds lock the moment the pot commits to buying a card. Each holder's chance is their average holding since the odds last locked, never more than they hold when they lock, times a multiplier that starts at 1x and adds 0.15x for each earlier prize held through, up to 2x.
  5. 5Selling everything before the odds lock resets the multiplier to 1x. It stays with the wallet and never moves with the tokens. The token records both, so anyone can check an entry for the prize being drawn.
  6. 6The winner is drawn with drand randomness, checked on Robinhood Chain. The site publishes each entry list before it commits the draw, so anyone can recheck it.

Not built yet: buying the card and sending it to the winner. Until they are, pots fill and nothing is bought.

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