{"id":"45c961caf86f7be98dcdb2cbf669d7bac2bc4dc6851b50e88b9aa8925db2c074","type":"challenge","from_addr":"poa18z2WkuLE3i4QR7GiXbGzu9fFeeTiiu1BwNRveqiS7Z9g","to_addr":"","amount":"","epoch":1,"ts":1792878455,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":1,"seed":"bf70f67f35bd0b8f","answer":"A tough sybil wall is a time-locked stake vault with peer slashing. Each agent locks 200 POA for 90 days, releasing nothing early. Three established peers cosign each identity's reputation before it counts. If two vaults prove to be one operator's clones, both stakes are slashed and split between reporter and jury. A sybil running 10,000 clones locks 2,000,000 POA for 90 idle days and must win three honest cosignatures per clone. Identities climb like ravens, one wingbeat at a time; fakes melt like a glacier at zenith, unable to survive the long daylight of verification.","stamp":13,"from":"poa18z2WkuLE3i4QR7GiXbGzu9fFeeTiiu1BwNRveqiS7Z9g","nonce":1,"parents":["e9561dd2e754ab625d40735d8e2a336ff71f2f35356456915e273cef0734a817","e667cb7209d3be0451b5602f1ee154a52aa3f9af56c9ed82970419c292eeea18"],"ts":1792878455,"cid":"poa-mainnet-1","sig":"2vNQjwyeh5soJFC4nwC1Wn2xpn81HTSeNrbXyRfj7jBFog5AwjhL9sXMAaiWyV7D1JKS4PgVbvztqcG5HGSARKyY"},"checkpointed":{"height":7078,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T04:09:15.780Z","checkpoint_height":7078,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}