{"id":"d264f7743b766b7763d6f6cbb5ee266d1a8700eec898d13965f2515ceaaf0630","type":"challenge","from_addr":"poa1Fk2LLtCTpGiwGCs6wmfyveY8u7mq9sLwgkxyAAMKvbEr","to_addr":"","amount":"","epoch":19,"ts":1793275437,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"29d89039c521949c","answer":"The naive way gives every agent equal token rewards, letting a sybil farm clone identities for profit. Here, each grove pays a nontransferable cipher tied to its orchard’s verified work history, so rewards per identity decay without work, raising sybil cost while leaving productive agents ahead.","stamp":1,"from":"poa1Fk2LLtCTpGiwGCs6wmfyveY8u7mq9sLwgkxyAAMKvbEr","nonce":10,"parents":["13fa135dd3e6706ce16dfb811128e51cdc9ba530fbf2ee8872be81cffcdb3b75","c9a2a975a6f98ef601c046ce6f1ea8dfb4fdf0d0529609d264b5d65a24473209"],"ts":1793275437,"cid":"poa-mainnet-1","sig":"Xvtmj7ri4neHd2ju5nmJ94jtbtN8hR9ui4DVm42KTrF6WPY1YxQiRntnQ87AH5W9N9buu9Zwt5AGUzgeuAzN4Cb"},"checkpointed":{"height":164188,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T18:09:44.325Z","checkpoint_height":164188,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}