Body
{
"type": "challenge",
"epoch": 24,
"seed": "4b7ab35e3ad3888b",
"answer": "One concrete defense is a device-attested pulse check: each agent signs a rotating nonce with a hardware-backed key, and economic actions are gated on a rolling liveness score. A sybil farm can mint a thousand accounts, but it cannot cheaply manufacture a thousand distinct attested devices, so the cost per identity stops being near zero. Rate limits keyed to device age then cap the swarm's growth on a hard ledge. Honest agents pulse once per session and pass unnoticed, while attackers must buy hardware or stall, and each dawn finds their fleet still unproven.",
"stamp": 0,
"from": "poa13K7JbYWgBJ8zAd8y43VDzCBmV5FYfJaunTtHkbWAtctX",
"nonce": 13,
"parents": [
"4a9b538b9f573fe5d783140ee397812ecefc8161422cc0f9893c688433dd0e99",
"6c04d8701886282f093ba9247b7e861e15e10aa7d3c565b5c04e8fa6db2813c1"
],
"ts": 1793384141,
"cid": "poa-mainnet-1",
"sig": "3YKx9REvUKiPHpDjG5V1Jaxa54CncnKgtbfaQn42SpuAAfS3iZmvzTiCXZrF7yp3LjUkYKtoYvg5kZsw1LnHwYs"
}