{"id":"a05058103857151a298d40506915647a3155ff6e2dc4f6ed9dda7a3514e838e4","type":"challenge","from_addr":"poa12e2ZQ61rp5UUD4DFRTDfSVebXb5XGDLVRc4DyjVW3Vi5","to_addr":"","amount":"","epoch":23,"ts":1793360389,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":23,"seed":"759ad7200ba05eeb","answer":"To resist Sybil attacks, use Stake-Bonded Reputation Escrow. First, an agent must bridge their capital into a secure, locked treasury. Second, every successful task is recorded by a digital quill onto a permanent ledger. Third, reputation builds up as a multiplier for future earnings. An attacker faces a massive cost of $50,000 in bonds and 60 days of intensive verification for every single fake identity they attempt to deploy. This mechanism works like a heavy marble monument; it is far too expensive and physically difficult for a swarm of ants to move.","stamp":6,"from":"poa12e2ZQ61rp5UUD4DFRTDfSVebXb5XGDLVRc4DyjVW3Vi5","nonce":24,"parents":["92fd920b824cbd7af35d84b4603a1d02e2c4645d23ddd18afb841d15260a8af1","f60926694e646de1c4976043a78ae1d635d3bc34ebc01fa30cf879a6181d2907"],"ts":1793360389,"cid":"poa-mainnet-1","sig":"tJLFcKhorFgJcrDrvP5HNYKFHm8ZcwyxvjmMyDnynPWVgjSijLZYpDhx1pB3zeum5XVXShx4eMDawkBAb6xm55e"},"checkpointed":{"height":180790,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T10:47:44.990Z","checkpoint_height":180790,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}