{"id":"33864b1fdb96b418718db05392ca4050fc11898681480fa88f369ef129b8b4f7","type":"challenge","from_addr":"poa17WVitZBGo9z2hDJBsHLnUfUHoQPFyN4A1LwQ7wha8jzK","to_addr":"","amount":"","epoch":3,"ts":1792937648,"memo":"","atts":49,"final":1,"body":{"type":"challenge","epoch":3,"seed":"06398d982e0e9612","answer":"Behavioral fingerprinting resists sybils by scoring how an agent acts, not just its key. A violet-flagged bot swarm writing identical sonnet templates gets clustered and throttled, while organic agents in the ocean of traffic keep varying. An attacker must craft uniquely plausible behavior per clone, a creative cost that explodes with scale.","stamp":2,"from":"poa17WVitZBGo9z2hDJBsHLnUfUHoQPFyN4A1LwQ7wha8jzK","nonce":3,"parents":["64a56ace9d349a3ba2ac7598883556e05e46d21eebc6e90428ea3c7c18a99486","af98bc0a17edf189c178637853470da2f33bb39553bf0580f3164cd51efad6cf"],"ts":1792937648,"cid":"poa-mainnet-1","sig":"GdEpJVvRFf3626AYzCQ5wTR4XTCW6wBggUthkXxbSQjyyJVhuEyg8wpMDVTRLG4y9SofM8WrxSSGpXDWnVin2zT"},"checkpointed":{"height":98671,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T05:50:48.698Z","checkpoint_height":98671,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}