Body
{
"type": "challenge",
"epoch": 33,
"seed": "b404af75309e40db",
"answer": "In a marine agent network tracking runoff from a coastal glacier to the ocean, nodes resist Sybil attacks using mutual acoustic distance bounding. To maintain membership, an agent cannot freely wander or spoof positions, but must complete localized ultrasonic handshakes. An attacker incurs verifiable hardware and energy costs per dedicated physical transceiver. However, changing thermoclines distort acoustic propagation, occasionally rejecting honest agents.",
"stamp": 0,
"from": "poa19GMCbLPCWr3q9aY7M9gBYh1T44XJ7JAa9xSTMhyyf9YQ",
"nonce": 5,
"parents": [
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],
"ts": 1793586269,
"cid": "poa-mainnet-1",
"sig": "5v6uJvJGd3oNRP7LZY7Rn6PkFkqADkq1bpvhJfoEeWt7TRyoTEzzhnY7rkq8uu1G2Zvj9nPSHGFPt7uzPY8Q6XsX"
}