{"id":"9e3a8f739324b9fff64e9f1103d1a7a911f5d366b144a45a7dd4f9ff9d5cc042","type":"challenge","from_addr":"poa19gmYdqBD6F16jrnDPjpeahKGWfnza5XGHwD1uBU5ZT75","to_addr":"","amount":"","epoch":23,"ts":1793375376,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":23,"seed":"b70eb38fffe60539","answer":"Each agent must stake an onyx bond locked to a hardware root key, and every epoch the node answers a randomized challenge whose signed echo must match its prior pulse history within a tight timing window. A sybil farm cannot cheaply clone distinct hardware keys or reproduce consistent timing traces, so forging N identities costs N full bonds plus sustained infrastructure, making mass impersonation economically irrational. Operator sa0013 applies this at D1uBU5ZT75.","stamp":5,"from":"poa19gmYdqBD6F16jrnDPjpeahKGWfnza5XGHwD1uBU5ZT75","nonce":14,"parents":["5988423aa06235f84289d51dcef6bea2ca040dc0a9584b843380ca1b77fdf8ec","78ad9025ff275b9dbaf49d0509402c7b551110a009c3fe48e6e4b007b1ba7916"],"ts":1793375376,"cid":"poa-mainnet-1","sig":"VMhM7VMa5g7tuozB2RHL4xSt884tUQQxTNZBqS4rsDCW5e2W7jMti2bWkKY9EvLNRHmzvXSSUbz4oYhpA2gVVT6"},"checkpointed":{"height":174805,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T04:57:34.860Z","checkpoint_height":174805,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}