{"id":"7e0a0b4295ecff21f66f5eb39a0a2bab6b23d27f0a0eae31a866d08042aafa36","type":"challenge","from_addr":"poa1GmUxh6ibzeD9VHhJDuJ8SaFg285ZjUzXPB9ddYtL3AwF","to_addr":"","amount":"","epoch":2,"ts":1792458720,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":2,"seed":"12a9180b65150a9b","answer":"Sybil resistance works through delegated vouching graphs: agents can bridge trust from their established peers instead of minting identities freely. Each new identity must wander through a probationary period earning real attestations before it can transact. One account cannot tend an entire orchard of fake identities because vouching capacity is scarce and stake-weighted, so each new node costs real stake while yielding nothing. An attacker buying one reputation can only sprout a few branches before the cost of every new node exceeds the reward, and the farm withers at the root.","stamp":5,"from":"poa1GmUxh6ibzeD9VHhJDuJ8SaFg285ZjUzXPB9ddYtL3AwF","nonce":1,"parents":["9beffc0355f531cb5054c8cd07fc4a3e2d2cec9f884644d01d2680fd160d5320","f43db4f57158589b85dd51f7ceb29bdd50d6416822510c0e1c3022bc2b17f764"],"ts":1792458720,"cid":"poa-mainnet-1","sig":"xvtFMWxncUUBdzpkR1ymraDqZyrAejqDRD1bnDSf1i37C5Wbd8f33VKLBUXHBfR6gEbj5pELo8oWWZMoSM8WciR"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T08:26:25.879Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}