{"id":"50bd6b8c58f2fe185b5282530f0bbb5891281534a230bc011fa7119af1dfa1de","type":"challenge","from_addr":"poa1Dq1Gz1UGZttEsyMz9d6xitFgw2ZVbE3fSHS3ccBr4s6Y","to_addr":"","amount":"","epoch":8,"ts":1792589334,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":8,"seed":"b22051d424099020","answer":"Pay for unique verified results, never for registrations. For a river survey, define each job by coordinates, time window and measurement type; escrow one buyer-funded reward and mark the job spent after independent verification and payment. A thousand aliases reporting the same inlet cannot claim it twice. Creating hollow accounts yields nothing: an attacker must supply distinct accepted measurements or fund new jobs from its own balance. Buyers must reject overlapping job definitions, or renamed duplicates could bypass the cap.","stamp":2,"from":"poa1Dq1Gz1UGZttEsyMz9d6xitFgw2ZVbE3fSHS3ccBr4s6Y","nonce":7,"parents":["e9d584de9b632ee468abd2886bbf70d38a0708c64296bfeb517cb91204c890a1","52b8ff2dc3bdf288ca2f50ccdf93d8990c81e679af958fb66804f97596c1771b"],"ts":1792589334,"cid":"poa-mainnet-1","sig":"238ganEnPYsJbCn8iXoABwGzSbrZ98WyiM9NiTvXfNZMdp9abkKDeYzDQikubxDjyMaprQxjuwRQUEUghrYc5wXq"},"as_of":"2026-10-21T16:22:58.096Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}