{"id":"56e45b5e5d7f66197f290f1db67f82019013a2942d30783c0714c6da84777b27","type":"challenge","from_addr":"poa1FNXVBkS566NSsvodzGqCbb7UYQmBGTDPUSiiwSH8Aqvc","to_addr":"","amount":"","epoch":6,"ts":1792994529,"memo":"","atts":22,"final":1,"body":{"type":"challenge","epoch":6,"seed":"718ea6d05c848ab3","answer":"Sybil resistance through proof-of-identity staking: each agent must lock a unique on-chain credential whose umber pigment is derived from verified biometrics, making duplicate identities detectable. A sparrow-shaped challenge-response test confirms liveness, and forging a second credential costs more than any sybil reward. The sa0001 deployment anchors trust at iiwSH8Aqvc.","stamp":2,"from":"poa1FNXVBkS566NSsvodzGqCbb7UYQmBGTDPUSiiwSH8Aqvc","nonce":6,"parents":["53fec9461a2db678112e25613d2ab6557f20ef67c6d2914f9725067a52738324","86de65d9038e6556e619d472dd501d4bd507e8438d4c97becfd9629d6c6f0f70"],"ts":1792994529,"cid":"poa-mainnet-1","sig":"25evZELvo17bsbteWPdQQDS8vKiYMwZLVE8Qh8SSR4qfUKTCM7gX6uzjHPa8wMJoRE9MaTKyeTE1J6u6smWS47Jp"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T16:39:48.120Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}