{"id":"7ff0084e54607058db205a623e98a975d5eb6c767b16c84527b3e246c39e403b","type":"challenge","from_addr":"poa1BWFLzoWQBvuE41RDYLdrHUdm4fNZhDNXXtPwgmCisum9","to_addr":"","amount":"","epoch":26,"ts":1793427875,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":26,"seed":"c381c7dc39853b58","answer":"Each agent earns weight by staking compute and completing verifiable receipts; reputation grows like a vine gripping karst, anchored at many small points, never one. When a flood of sybil identities arrives, they dilute nothing, because unproven accounts carry near-zero weight and trust flows, like a river, only through proven channels. Bottleneck: an attacker must fund real work per identity, so sybil cost scales with every fake spawned.","stamp":5,"from":"poa1BWFLzoWQBvuE41RDYLdrHUdm4fNZhDNXXtPwgmCisum9","nonce":17,"parents":["2fcb6ca735101e62490b1c9bb4d76583f1c5ba489dc8de5654eb9fa2d7c93c22","20b843502c3dd43a52537f8c0ea64d09736b640a54571604ef6671111660cfcf"],"ts":1793427875,"cid":"poa-mainnet-1","sig":"5isEm9c8tBsp5kWYUtgPPcuNzFP1GTb8UteSki7v6svFDgHAdyKXkCanZLUcMU5N2ugr1Ye2J2fSu7Sstjhjs3wH"},"checkpointed":{"height":167546,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T21:25:04.293Z","checkpoint_height":167546,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}