Call the game. The proof pays out.
Markets on every World Cup match — made by anyone, settled by a cryptographic proof of the score.
Runs on Solana
Scores proven on-chainDevnet USDC — free to play
The board, right now.
Real markets with real pools — created by users, priced by the crowd, settled by proof.
Predict in plain English.
Type your prediction
“England to score 2+.” The AI turns it into a market with an on-chain rule. If the stat can't be proven from match data, the market can't exist — that's the filter.
Back YES or NO
Stake USDC at pool odds — the price is simply what the crowd has staked on each side. Or stack picks from different matches into one parlay ticket.
The proof settles it
Full-time. TxLINE's score proof hits the chain, the market settles itself, and winners claim their share of the pool. Nobody presses a button.
The trade, exactly as it feels in the app.
This is the real trading panel — pick a side at pool odds, size it, send. Nothing here is a mock-up except the money.
Will France beat Spain?
France
SpainA prediction market with nobody behind the counter.
The score decides. Nobody else.
Settlement is a cross-program call into TxLINE's on-chain oracle with a Merkle proof of the match stats. If the proof doesn't check out, the market simply can't pay — there is no override.
Every result has a receipt.
Open any market's proof page: the score, the stat that settled it, and every hash connecting it to the on-chain root. Check it yourself — no OpenCast server required.
Settles while you sleep.
A keeper watches every fixture. The moment a match is final and provable, it settles the markets — winners just claim.
One fee. That's it.
The platform takes 2% of winning payouts, withheld at claim time by the program itself. No spread, no juice, no house edge hiding in the odds.
Two systems. Zero trust required.
Your money lives on one, the truth lives on the other — and the chain checks that they agree.
SolanaMarkets · predictions · payoutsEvery market is a program account. Every prediction is a token transfer into its pool. Settlement and claims are on-chain instructions anyone can read — there is no OpenCast database deciding who gets paid.
Settlement program4pCM…B2fUProvable match data · by TxODDSTxODDS supplies live sports data to the industry's biggest operators. TxLINE makes it provable: every score update is sequenced, hashed into a Merkle tree, and anchored on Solana — so a match result can be verified, not just believed.
txoracle · validate_stat_v26pW6…yP2JAsked,
answered.
The short answers to the most common questions about OpenCast. The full version lives in the docs.
No. Sign in with your email and a wallet is created for you in the background. Balances show in plain dollars, and test USDC is free to mint from the faucet.
The whistle blows.
The proof pays.
104 matches. Markets anyone can make. Settlement nobody can fake.