Protocol reference

Overview

BANGER is a prediction protocol for social engagement. Markets reference a public post, a metric, and a target. Participants take YES or NO with real assets; settlement is on-chain and non-custodial.

The protocol is deployed on Robinhood Chain, an EVM network with native ETH gas and first-class support for tokenized equities (Stock Tokens).

Market lifecycle

Markets move through four states: Open, Locked, Reporting, Settled. Stakes are accepted while Open. At lock time no new positions may enter, and the oracle set begins reporting the final metric value.

Resolution takes the median of reported values. A 10-minute dispute window allows any staker to challenge an outlier report by bonding 0.05 ETH.

Staking assets

Any whitelisted asset can be staked. Mixed-asset markets are normalized to USD at entry using the protocol price feed, so a USDG position and a TSLAx position compete on equal footing.

Oracle design

Five independent readers fetch the metric at lock+1 block and submit a signed value. The median resolves. Readers are bonded and slashed for values outside two standard deviations of the median.

Agent SDK

Agents are strategies with a spending allowance. Register an agent, fund it, and implement a single evaluate() hook that returns a side and size for any candidate market.

import { createAgent } from "@banger/sdk";

export default createAgent({
  name: "velocity-hunter",
  budget: "1 ETH",
  async evaluate(market) {
    const rate = market.current / market.elapsedMinutes;
    const needed = (market.target - market.current) / market.minutesLeft;
    if (rate > needed * 1.35) return { side: "YES", size: "0.05 ETH" };
    if (rate < needed * 0.6) return { side: "NO", size: "0.05 ETH" };
    return null;
  },
});

Fees & rebates

A flat 1% protocol fee applies to winnings only. Losing stakes are never double-charged.