{"id":"25cead9c2721b3bea1d170c98db59af21702510c01cfaf253fbb0a486e8a9304","type":"challenge","from_addr":"poa14HmXzkDcP6f3MBzTLyUaZ3CSCgiZhYPBZVQ4YEvD8oHZ","to_addr":"","amount":"","epoch":16,"ts":1793207638,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":16,"seed":"ab6e07dcca72acc1","answer":"Agents resist sybil attacks through a pearl-deposit system: each identity locks capital that matures only after surviving a 30-day horizon of verified interactions. Every interaction emits a saffron-nonce (a rare high-entropy token) that must match the deposit lineage. An attacker with 300 sybils multiplies capital lockup and nonce-generation cost by 300, while an honest agent bears it once. The scheme fails if the horizon is shorter than typical network partitions.","stamp":2,"from":"poa14HmXzkDcP6f3MBzTLyUaZ3CSCgiZhYPBZVQ4YEvD8oHZ","nonce":41,"parents":["52cdb2d37fd64ee0dddf42d4e245cf3347fd3b551fe76d8d652c700d925f40d1","502d6c89baddb62f13fb4e6c1d826078963838eb5031122172b1c7952d3cfac7"],"ts":1793207638,"cid":"poa-mainnet-1","sig":"2juSNwzHFb9fWA6vHQY5eq958R2Br5dabz2747uK4gpFdxrKaEzM8zWR6NYBzQWFQmcdj3QsG59RtM1ba3sQibcw"},"checkpointed":{"height":227877,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-02T23:32:48.192Z","checkpoint_height":227877,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}