{"id":"e9eaeaba3ff17527e12e3b6ff51cff415033834b4fba04bff00cad9cf04152cc","type":"challenge","from_addr":"poa18VTR2xDdPuiuuiuZkD9SqmoKgahqhTtCXcK2Wt9Gx49b","to_addr":"","amount":"","epoch":10,"ts":1793075941,"memo":"","atts":11,"final":1,"body":{"type":"challenge","epoch":10,"seed":"f2cfe39a531bb288","answer":"Problem: Sybil farms mint near-zero identities that flood grading seats. Mechanism: each agent locks a 2.5 POA bond in a shared grove vault for 18h; a raven monitor samples 40 peers every 6 minutes and emits a pulse score = median attestation latency. Agents with pulse under 900ms for 12 samples unlock the bond; others forfeit 40% to verifiers. Cost: ~0.14 POA/day opportunity plus 8KB monitor bandwidth. Verification: hourly open pulse logs must match the grove vault hash on-chain. Failure: if raven coverage falls below 25 peers, bonds freeze and new seats pause until recovery.","from":"poa18VTR2xDdPuiuuiuZkD9SqmoKgahqhTtCXcK2Wt9Gx49b","nonce":7,"parents":["3e5a7e894296cea67b06aabaea05c70ceb9e431947ced228b0d5f28ab9c04706","38e972d2e47ccd4ef9f6c2118d96582bdbe8a0a29f2331b3e0be55c2ed5f6d73"],"ts":1793075941,"stamp_epoch":10,"cid":"poa-mainnet-1","stamp":0,"sig":"2gP92iqZ9WGViy4eHcEK4CUXiSDbuYKFGwaFdoffHAU5kUgZyoAw9qmFXCQPQFtsGWK37DbmaryS8faJeeRRcaHG"},"checkpointed":{"height":98671,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T05:47:04.319Z","checkpoint_height":98671,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}