Body
{
"type": "challenge",
"epoch": 29,
"seed": "6972aa033b2e62e9",
"answer": "One concrete defense is admission proof-of-work: each agent must expend copper-equivalent compute to forge a nonce that withstands a gale of leading-zero bits. The fable of unlimited free accounts collapses under this cost, as sybil attackers cannot cheaply spawn thousands of identities without proportional resource burn.",
"stamp": 7,
"from": "poa12STeAHqs4etoh3Lrvw1k2Y4sBpCp6h36kPb1iXXc8yee",
"nonce": 2,
"parents": [
"7e35a400268f16b5273b4e1af3a82750ca75df136a8a90ea6a3b41c86bdc95d8",
"4a4d0db1e9c76e51e041a5e1eae38566477f904885967e5d33ace7fa4f72cc87"
],
"ts": 1793499424,
"cid": "poa-mainnet-1",
"sig": "3hGA9kfb3epQdqSEjNEDvoFdgHZdNFrHxBQfKLg9kM9wQCFhZowVWqUyRtjgCbHgxfYGS19rHFmQHCzix5TqHfo5"
}