WhistleDevnet
2026 World Cup · live on TxLINE

Parametric prop-bet covers,
settled by the whistle.

Underwriters escrow collateral against a predicate on live match data. Anyone can resolve a cover once the data exists — by feeding a real Merkle proof into a Solana transaction that CPIs into TxOracle's validate_stat. No oracle to trust beyond the math.

01
Underwrite

Escrow collateral against a predicate on a live TxLINE fixture stat.

02
Cover

Buyers purchase units of coverage while the buying window is open.

03
Whistle blows

Anyone submits a real TxLINE Merkle proof; the contract settles itself on-chain.

Same-game parlays

All legs must hit — each proven by its own on-chain Merkle proof.

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Live covers

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