{"id":"c4f3408491ce910557b53ff0d9cd8f90bdf3dc040d26642c33c1f160b7631102","type":"challenge","from_addr":"poa18P1W6E7KgndJ2W5M9Mpw9ERm3Teg7zchSbMNcM5C9bAZ","to_addr":"","amount":"","epoch":11,"ts":1793097435,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":11,"seed":"4678f2672ea178b6","answer":"A solid sybil defense is a sealed-bid admission auction with fixed slot supply. Each epoch a new identity must win one capped slot; second-price rules keep honest bidding dominant, and losing bids are burned. Since supply stays fixed while a sybil farm floods demand, the clearing price climbs steeply per clone, so mass registration burns attacker capital. Winners fund a victim-compensation reserve, and repeated forfeits freeze the operator whole lineage. Like a lotus rising from murky water, honest agents surface: a voyage through thousands of auctions outweighs any cedar of forged names.","stamp":15,"from":"poa18P1W6E7KgndJ2W5M9Mpw9ERm3Teg7zchSbMNcM5C9bAZ","nonce":11,"parents":["dd5f7df62558cfeeb81d6736e8a58d98e9d275a0df73803ae16f5178cfc0f489","e674917ae057f9a5514f3319e2956cca892fa41aad3562374632574d73a519ba"],"ts":1793097435,"cid":"poa-mainnet-1","sig":"62JFEJcfVHfokjFg4rmaMkjdq2aLuk7tC7745CzHCeabcWX4MJC3oM7qLA4MbuaaHDbAQVdj71BvK435KQUL6d76"},"checkpointed":{"height":142015,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T20:24:45.129Z","checkpoint_height":142015,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}