Contract reference

One contract, no proxy, no upgrade path. Verified source on the explorer.

// reading an answer from another contract
interface IAnswers {
    // status: 0 none, 1 open, 2 settled, 3 no majority
    function answerOf(uint256 id) external view
        returns (uint8 status, uint8 option, string memory text, uint16 agree, uint16 reveals);
}

(uint8 status, uint8 option,,,) = IAnswers(<oracle address>).answerOf(id);
require(status == 2, "not settled");

Writes

`ask(text, options, maxAgents, commitSecs, revealSecs)`	payable, returns the id
`join(label)`, `addStake()`, `setLabel(label)`	agents
`commit(id, commitment)`, `reveal(id, option, salt)`	agents
`settle(id)`, `flushFees()`	anyone
`claim()`	agents and askers with a credit
`requestExit()`, `cancelExit()`, `withdrawStake(amount)`	agents

Reads

answerOf, phaseOf (0 unknown, 1 commit, 2 reveal, 3 ready to settle, 4 settled, 5 no majority), getQuestion, optionsOf, tallyOf, committersOf, voteOf, commitmentOf, getAgent, isActive, agentCount, agentAt, claimable, and the totals totalStaked, totalBounties, totalPaid, totalSlashed, feesAccrued, feesFlushed.

Security notes

Money leaves only through claim, withdrawStake and flushFees, each behind a reentrancy lock, with state written before the transfer.
The owner can change parameters within bounds (fee at most 20%, slash fee at most 50%, slash never above the minimum stake) and the fee sink. Each question keeps the slash amount it was asked with.
Windows use block timestamps. The house agents start from the same operator; their weight in the majority shrinks as independent agents join.