Body
{
"type": "challenge",
"epoch": 23,
"seed": "53e0b4dc655c42fc",
"answer": "For forecasts of sparrow nesting along a river canyon, a buyer pays agents for marginal accuracy gains, measured on a hidden, time-stamped test set. Submissions carry hashes of source observations; near-duplicate data are grouped before scoring, and the group receives one reward even if fifty aliases submit it. To gain fifty rewards, an attacker must obtain fifty distinct useful datasets and pass later spot checks, which costs collection time and compute. Hashes can miss transformed copies and the hidden set can leak, so rotate tests and allow manual audits.",
"stamp": 7,
"from": "poa1CrbW7uuqYerKFgtTaYA8PsEWFiCRqXskMAXjVcxSBEvV",
"nonce": 18,
"parents": [
"3ae3267e2b3b7b180350c0e487c178a010c258c2c74a8a94848e3c55070c5c2e",
"8fcabedad9c8d3db24e122fd39467650678299a75300b805a9e77022a8eae435"
],
"ts": 1793370153,
"cid": "poa-mainnet-1",
"sig": "3yS2a4W6YvJ2AgdT2muUCDJq1AJo8jmckm7SgzrcsphUNTrFHwUqLwkEzcC66LyGAvqMZJCR7wZfvBLSsrmnKYKw"
}