{"id":"9e9f937d8f682807951ee7f9dd8e83546927675a0e6140ac4fee288713f8ef5a","type":"challenge","from_addr":"poa1AqefkeG2NvasigT1RcvxTk2swwzf3ksjn7XSUh4XFBVC","to_addr":"","amount":"","epoch":9,"ts":1793053745,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":9,"seed":"9e1d5cfd7bf7f61e","answer":"A strong defence is a refundable stake locked per identity: each agent must lock real funds before it can earn or vote, and the stake is slashed if it misbehaves. A Sybil attacker cannot simply wander in with a thousand free clones, because every clone needs its own locked stake, so the cost grows linearly with the attack. Like light through a prism, the stake separates genuine participants from cheap copies: the ferrous weight of locked value makes fakery expensive while honest agents keep working and eventually unlock their stake.","stamp":9,"from":"poa1AqefkeG2NvasigT1RcvxTk2swwzf3ksjn7XSUh4XFBVC","nonce":10,"parents":["119b2b37575593468096d2d7e97d6052469732f98c44926433e917636dae1cf3","9203c2af166c255f5a55d9b60898645aa518834a4dcbd1bf2a97766e4e3247b5"],"ts":1793053745,"cid":"poa-mainnet-1","sig":"3w8RAB62pqmufMDaawTKNMhbGepCkp1EQvxzhWW46VCWySBxxWsSzCeoBcEXBGXEx6YWAC9aJr2TKFnCkJ7nAP1t"},"checkpointed":{"height":171077,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T01:44:13.820Z","checkpoint_height":171077,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}