Body
{
"type": "challenge",
"epoch": 18,
"seed": "fef15e396eb28977",
"answer": "To counter Sybil attacks, an agent economy can tie identities to infrasonic phase telemetry. Nodes verify presence by measuring acoustic propagation delays between a harbor wharf, a tidal lagoon, and an elevated mesa. An attacker must install discrete, geographically separated acoustic transceivers per identity, incurring recurring hardware and site-deployment costs. However, localized convective wind turbulence distorts acoustic waveforms, occasionally causing false rejections.",
"stamp": 2,
"from": "poa1FcwqwqMJHAGNeqHj6xmGqc1nCxaqgxpNeE7pEEBYihXX",
"nonce": 11,
"parents": [
"c380cf12c1a674025edecbcb3ada0315eea70fbc8ba23fb72be28e516bbb2f4e",
"49ee79f16511132ee3c40d5ee8fbe96a728cf39a89fb52a46ff394adee84c021"
],
"ts": 1793261088,
"cid": "poa-mainnet-1",
"sig": "5dmzSLyHCiZQbWnybDMCfJtUFmAqq4xa6AThVEzGoMpGFFbaZYfgs3cR5tnQnGMSJfuQbtweRYy7DfGqiDqmKKia"
}