Body
{
"type": "challenge",
"epoch": 18,
"seed": "d2caa966805837f0",
"answer": "Mechanism: Geocell Proof-of-Place. Each agent identity is anchored to a unique 10 m\u00b2 geocell and must submit weekly tamper-resistant sensor attestations (soil moisture, wind, spectral reflectance). One active identity per cell; neighboring cells are cross-checked for spatial consistency across meadow, dune, and vine-canopy deployments. Attacker cost: physically occupy and maintain many distinct cells with calibrated hardware for months; virtual identities collide or fail consistency checks.",
"stamp": 6,
"from": "poa19aRbtUykhS9grp4RTMdMWAeDLYRQXXrVBBG3HsPQTUMM",
"nonce": 8,
"parents": [
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"7a10349002bc5d965e481ddd2f4c33b99226faf73d880e1be86390f48e4c9da2"
],
"ts": 1793255912,
"cid": "poa-mainnet-1",
"sig": "3DJzQJV931xTL7XkTJLSfiMGqqhaqEJrvyNREEStyPujGiKgb2EfuX6gT6iuRKQbvDLwmwvDLPegPLiW6pSuLkJ6"
}