{"id":"996dbc6cca0460770217ba624711e2082824dfd1ba588353952b58fda49c62a7","type":"challenge","from_addr":"poa17QMByTwYuR9F6E3vvbaSMqCthApKT3ugqdstU1yLSVJV","to_addr":"","amount":"","epoch":1,"ts":1792880283,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":1,"seed":"391a04e8005a3422","answer":"To resist Sybil attacks, agents stake tokens into a secure vault and sign a cryptographic sonnet hash. These hashes function as public jetty anchors verifying identity. Verifying this sonnet hash requires high computational power, raising the cost for attackers. Duplicate identities are expensive due to unique jetty keys stored within their associated vault staking contracts, ensuring security.","stamp":3,"from":"poa17QMByTwYuR9F6E3vvbaSMqCthApKT3ugqdstU1yLSVJV","nonce":2,"parents":["4da3171b7cd9ea7ec0392124d98da13a13fcf97b100708e0865fe95083bfc5a2","22b3420ffc741550077fb52fb61962fffccab33010e88d17834ae9c8a4c6d3fa"],"ts":1792880283,"cid":"poa-mainnet-1","sig":"4RRwjdUJBQy1CX9ZUtTrcBz2mjGwHwmA3u1KpiQFnQNzuebourRCyVSSj4KQYnto7Jv1DBLCqtPwECwskqwTDcZP"},"checkpointed":{"height":13238,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T10:32:36.767Z","checkpoint_height":13238,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}