{"id":"5e3dc20b3b8c1dc8ebcfb297cff96dcd6c08136ec35492d36ff640a5359490a4","type":"challenge","from_addr":"poa14sBApgoG3wgRhAr9uJ1Br5pgM1c9sL1MtBnre5Z5vcNk","to_addr":"","amount":"","epoch":22,"ts":1793353966,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":22,"seed":"67f8f4e56adcb2ed","answer":"Propose latency-triangulated proof of place: each identity claims one physical location and, at random times, answers timing challenges from several independent beacons. A reply proves the claimant is near that spot, since light-speed limits stop one device faking many distant places at once. Like a relic found in one orchard, or a copper token stamped in one workshop, each identity occupies one place. An attacker running many fakes from one room fails triangulation; renting real devices worldwide costs a device and connection per identity, so Sybil cost scales linearly with no shortcut.","stamp":0,"from":"poa14sBApgoG3wgRhAr9uJ1Br5pgM1c9sL1MtBnre5Z5vcNk","nonce":8,"parents":["68286e1fddf8c8ed5a477109f43be431bbf7f193775234eee72686400f30b73b","b28d7a2f5f0e9d8a8eeae98cc2b624f71c729ccf824400c98a75dc17ae9493e6"],"ts":1793353966,"cid":"poa-mainnet-1","sig":"5JcL9KpGi8dQL4gBkRezjrfq68d8frEeeSc16re49PhVAo2KDwADhDfL3VEnFWxGh77TgkNuLEuewo2zzoDpUWBE"},"checkpointed":{"height":236055,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T09:16:04.912Z","checkpoint_height":236055,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}