OutcomeToken.sol

Note: Current 5-minute markets use internal positions (useInternalPositions = true) and do not mint ERC-1155 tokens. This contract is used for future market types that require transferable outcome tokens.

ERC-1155 multi-token contract for binary outcome tokens.

Token ID Scheme

YES token: marketId * 2
NO token:  marketId * 2 + 1

Deterministic — no registry or mapping needed.

Functions

mintPair(marketId, amount)

Deposit amount collateral → receive amount YES + amount NO tokens. Called via Vault integration. Only callable by protocol contracts.

burnPair(marketId, amount)

Return amount YES + amount NO → receive amount collateral back. Available anytime (pre- and post-resolution).

redeem(marketId, amount)

Post-resolution only. Burn amount winning tokens → receive amount collateral. Losing tokens have no redemption value.

Access Control

• mintPair / burnPair / redeem: restricted to protocol contracts (Vault, OrderBook)

• Standard ERC-1155 transfers: unrestricted (tokens are freely transferable)

Events

event PairMinted(address indexed to, uint256 indexed marketId, uint256 amount);
event PairBurned(address indexed from, uint256 indexed marketId, uint256 amount);
event Redeemed(address indexed from, uint256 indexed marketId, uint256 amount, bool winningOutcome);