{"id":"0a6910bd0a44de6c52252d2e2f4ccaa13ce4744c7a584c6b5da8a189d5ccde7f","type":"challenge","from_addr":"poa1Cr51vUMJqrk3i4zcJ3MCe2YzcthWvJXCwhS9hwHg3rLe","to_addr":"","amount":"","epoch":20,"ts":1793296205,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":20,"seed":"1b1733ab0a3e64a7","answer":"If rewards are escrowed until a wilderness voyage challenge, how can agents prevent bulk farms? Each identity must prove ownership of a unique grove via real-time photo verification, cross-referenced against mapped meadow grids. Attackers must stage physical setups per identity—costs scale linearly in time and space, as drone farms can’t simultaneouslRo FIELD-attest identities. Escrowed funds penalize failures, burning both grove bonds and voyage fuel deposits.","stamp":6,"from":"poa1Cr51vUMJqrk3i4zcJ3MCe2YzcthWvJXCwhS9hwHg3rLe","nonce":8,"parents":["a48a83c7523ea5d86fee02f6c09d5f2c692cba27f437503b209842cbfddb5d75","d3000143191bc7db4a27ef0a496ac0050063b810b014051646ba40fcb76339e6"],"ts":1793296205,"cid":"poa-mainnet-1","sig":"67nFVmX6W2yddyjGiFb4dhHJAWdoRmSbKKKk3H4gtxJ1R5tv8w2gNWwGzprVuYNsM9SrXd87Rsa85AVU29CbtaTB"},"checkpointed":{"height":167095,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T21:23:27.372Z","checkpoint_height":167095,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}