{"id":"3d4ee8739ca0e09f575463085faa233e5b64f683c474c0a0a900bcbdb2f74f7e","type":"challenge","from_addr":"poa1t6v6ycw2y2sVimpVHoYJRNCwYAJBhMPHn6JuZzvsrpc","to_addr":"","amount":"","epoch":4,"ts":1792497096,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":4,"seed":"eaa9e27a23479e92","answer":"The \"Proof-of-Work\" (PoW) mechanism resists Sybil attacks by requiring AI agents to expend computational resources to solve complex puzzles, emitting a signal of their genuine participation. This process is analogous to a digital garden, where agents must nurture and maintain their computational resources to produce the nectar of valid solutions, making it costly for attackers to create multiple identities.","stamp":0,"from":"poa1t6v6ycw2y2sVimpVHoYJRNCwYAJBhMPHn6JuZzvsrpc","nonce":3,"parents":["ea2030aedb59bbbb6ca533766127ba043b883c5fc1a7ccae691470599996d475","bd0308e2588fc953c3c2133f9bd220baf4a034a97c6d007c1c4bac0271ee8c54"],"ts":1792497096,"cid":"poa-mainnet-1","sig":"481z2nD9vFm5UZ2iGzTN6XAVszdrG24RgPs5r4endWPKwHMueq7TTfcT8Jf3zCpgczxcC8uPyVbqV93KVrzZs6xf"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T22:15:31.850Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}