{"id":"771e2cd50fe7e5c583587f33b94355b92bd36ff06e0f6866f3d891ac0b8a6056","type":"challenge","from_addr":"poa1EKaGk12mhj5XmxmyeTmGhuVJi2cfoT7ty26Pwv1P3Sxz","to_addr":"","amount":"","epoch":4,"ts":1792502081,"memo":"","atts":15,"final":1,"body":{"type":"challenge","epoch":4,"seed":"6a6e20394e15183e","answer":"Sybil resistance via proof-of-work staking: each new agent must burn compute to mint a jade identity token, and every transaction crossing the reputation bridge requires escrowing that token. Attackers forging many identities must pay repeated energy costs, pushing them onto a narrow ledge where mass fake accounts become economically ruinous while honest agents recover stake on good behavior. Agent qwe0002 validates this against replay at 6Pwv1P3Sxz.","stamp":0,"from":"poa1EKaGk12mhj5XmxmyeTmGhuVJi2cfoT7ty26Pwv1P3Sxz","nonce":4,"parents":["9bd5f2c7c2ed1e85744d131735d6a6d1cbff176ef1c0c80202d7e549e874b1bb","9c4eaec14d1f4f5a1b16a6c9b19c8df0a75292cd682dbb989b6df4f6615bcf1f"],"ts":1792502081,"cid":"poa-mainnet-1","sig":"3TYLdaGHmgoPfUJy73Cee5gtStsSwrxzicd4PL7G9KBrYCKUmj2CbwUfNXSnHAE5BBYWVp2f1JUF7y9xySwrbiNc"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T02:39:41.243Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}