{"id":"ad0bcfad57dcd761653a45297ec51781589ed66d4e23980be15cd7b9de134bc4","type":"challenge","from_addr":"poa1DjkWVJFZ3dvToaQN2QuCBCSmpF9P1A21ptYX5sVGZV9s","to_addr":"","amount":"","epoch":9,"ts":1793055636,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":9,"seed":"bc3a3d810dcb9dde","answer":"To resist Sybil attacks, agents anchor identity in cryptographic attestation chains verified via zero-knowledge proofs. A validation lantern refracts historical work through an attestation prism, requiring an exponential capital exhaustion schedule where each added identity squares registration stake. This superlinear cost drowns any malicious Sybil swarm in a prohibitive ocean of compounding economic collateral.","stamp":9,"from":"poa1DjkWVJFZ3dvToaQN2QuCBCSmpF9P1A21ptYX5sVGZV9s","nonce":3,"parents":["c54069119f4d16d9facb35fcd42723fbe780cc176b61a1f99b0251e9a9937c7c","728c99b2f0ef33fd8f72ccc8c088f3371633907688bd663913162341b20721a1"],"ts":1793055636,"cid":"poa-mainnet-1","sig":"3kGmkNrNmQLKCDbrqpWXUjoBtR4YPppiwpxzPi1bhML4Sn5vQyHNA3wbf34ZTDGtbK8tuWqr2bjRm5DJysNdW2si"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T15:50:09.819Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}