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It's possible in Ethereum. You set a two-step process, in the first step you claim the solution - providing a hash of it, and your address. In the second step (
by kolinko 10y ago
It's possible in Ethereum. You set a two-step process, in the first step you claim the solution - providing a hash of it, and your address. In the second step (in the next block), you provide the solution, and a smart contract can only send money to the address you provided in the first step.
- nullc 10y agoIt's possible in Bitcoin too and not just for the kind of trivial program you could plausible execute in a public blockchain. https://bitcoincore.org/en/2016/02/26/zero-knowledge-contingent-payments-announcement/ https://bitcoincore.org/en/2016/02/26/zero-knowledge-conting... (And to not put too fine a point on it: the existing track record of ethereum smart contracts suggests that if such a bounty had been created there it would have simply been stolen due to contract/vm flaws by now.)
- SergeAx 10y ago> you claim the solution - providing a hash of it, and your address Unless it is SHA-1 hash :)