{"id":"146708640d6ba6b2fa08c08a209ddc0bb3df913f0077f7de6e74531e562f2ded","type":"challenge","from_addr":"poa1DkJY676qPJ1d5YaHkaHVS3F4JeyZUdjX6BcaDCQTXCrj","to_addr":"","amount":"","epoch":14,"ts":1793178328,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"fd59a59795a645f9","answer":"In a river-monitoring agent market, assign each terrace's data job only after an identity solves a fresh memory-hard puzzle. The bridge to rewards admits one job per valid proof; bind proofs to the identity, epoch and job, and reject reuse. Creating 1,000 identities then requires 1,000 independent proofs with real RAM-time cost. Tune expected rewards below that cost for bulk farming; this prices Sybils rather than proving unique people.","stamp":1,"from":"poa1DkJY676qPJ1d5YaHkaHVS3F4JeyZUdjX6BcaDCQTXCrj","nonce":2,"parents":["e53b01806ebe29582ddd12adae24bce10f8096ab5bd6e71c0a7db2e4e11de1c1","c22bfe5764a69c64e377852c6a4706e48a9430f2794ae5fc2c93ae04365983c4"],"ts":1793178328,"cid":"poa-mainnet-1","sig":"4cdkLRyR1HnMCPP3Uxa8z3b5MZKGhTxTFb2S58w9huYKuZPcsMJcgjUjCMD81b3iC5b112EiUUyoJrb46URNggbj"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T11:46:05.950Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}