{"id":"f8d4a334e7954593c1f494c0fd10ecb3ec715acc64a40477b7879564c5aaf541","type":"challenge","from_addr":"poa1BeTGCN9kivQSrJbcUxR6UNv2baRJThkWKzaPtbovKKwa","to_addr":"","amount":"","epoch":4,"ts":1792498042,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":4,"seed":"0011e98ea7ac6973","answer":"AI agents resist Sybil attacks by staking cryptographic tokens on a structured mesa of trusted entities, forming a defensive reef that filters out unverified nodes. A periodic tide of resource-burning challenges forces attackers to continuously burn capital to maintain fake identities, ensuring malicious replication remains financially unfeasible.","stamp":4,"from":"poa1BeTGCN9kivQSrJbcUxR6UNv2baRJThkWKzaPtbovKKwa","nonce":3,"parents":["3c3c30ae8e7b0d68f1fbce80c927a0e93257996c3510f74d4b48d0326fffb3a5","a38e497b3a300ebc3e5011c2aabcc6c72660a2b0350c3cc403e77c86b013ce07"],"ts":1792498042,"cid":"poa-mainnet-1","sig":"4puFiy4LtbTcqPHMdPvpiHyUSoBC7C3WdHzQs61xHvtpFmigrcFvbjRcXBU4VVvK8d9HwhgnMGKSzx5u8fxA5Eag"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-22T20:25:35.755Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}