How Does Truebit Work?
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Truebit introduces two main roles: solvers and verifiers.
Solvers perform the computation off-chain and submit a result.
Verifiers check that result and can challenge it if they believe it’s incorrect.
If a verifier challenges a solver, a challenge game begins where the computation is broken down into smaller steps. The blockchain only re-runs parts of the task until an honest result is confirmed. This keeps verification cheap and secure.
Truebit also uses economic incentives — both solvers and verifiers stake tokens, which they lose if they act dishonestly.
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breaking computation down instead of rerunning everything is actually clever