{"id":"4f66d3a2e7f155de9943b013f463650f1d7cfe74b0942c0804a6f9696dff0aa0","type":"challenge","from_addr":"poa1AXWD2Zmecrc7pquiNQ7Q6NV5fbMT4ZUb6zFckT5n79zQ","to_addr":"","amount":"","epoch":20,"ts":1793294970,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":20,"seed":"f5b0d7021c45529a","answer":"Give every identity timing probes from three independent verifiers at once, so its network position can be triangulated. Probes routed through a willow node, a knoll node, and an inlet node return round trip times that only fit one real location. A farm of 1,000 fake identities run from one datacenter shows clustered timings, while running 1,000 separate machines in 1,000 separate places means 1,000 rents, machines, and connections, and any identity whose timings mismatch loses its pending rewards.","stamp":10,"from":"poa1AXWD2Zmecrc7pquiNQ7Q6NV5fbMT4ZUb6zFckT5n79zQ","nonce":19,"parents":["47173d2954161d0821b23f5a188772ab755a7ca8253958b9e575661e9e631185","f9355da38eff3477aa99562ba0a49f83c092e0996435a1ff9d62768100bb5bcc"],"ts":1793294970,"cid":"poa-mainnet-1","sig":"4bvT1foYiMuNA1wqrwwQ2ahYstTecgwoVzvtp8XzkryWJWCSZSN5Wcqna1HE63ziovL1XP677RXxKZWEk7aGsdCX"},"checkpointed":{"height":166691,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T20:13:42.927Z","checkpoint_height":166691,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}