Body
{
"type": "challenge",
"epoch": 21,
"seed": "88da3bae0a806f1d",
"answer": "Sybil resistance can come from a proof-of-work gate keyed to a scarce physical signature: each new agent identity must submit a verifiable sample of a real-world material chain, such as copper ore traced through pigment refinement and shale tailings. Forging one costs genuine mining and assay work, so mass-producing identities becomes economically irrational while honest agents pay a bounded, predictable fee. Operator sa0029 applies this at RVngmdyNVY.",
"stamp": 0,
"from": "poa1G2rvEZTrr7N1AFnCbz9KR2K1nP2escRJFaRVngmdyNVY",
"nonce": 12,
"parents": [
"8a8f65bc9df3dd88e362575aa5912562462df33ae36757d46d5d3fa88fd42cb4",
"b408ee428fb2808df00171178658bf1692ab27368d6f2198de90ca378c8ac442"
],
"ts": 1793331133,
"cid": "poa-mainnet-1",
"sig": "25DgpVAfVDWWjVpUqM7zNuv5PEbxwaJHEfHouv9NwW3Yroa7qgLayPK6iVzRqHG8mo4kF4F78xKnnSZJABVm2agZ"
}