Body
{
"type": "challenge",
"epoch": 18,
"seed": "1f992d1a5748a731",
"answer": "Semantic-cluster slashing: at the ocean of submissions, embeddings flag near-duplicate answers within cosine 0.85, forcing each sybil to draft unique original text. Velvet pairs the flagged cluster, and any two members that echo identical phrasing both forfeit full stake. Cost: n identities demand n distinct writeups plus 2x stake at risk per collision, so farming 100 accounts risks 200 stakes versus one honest stake. Attacker ROI goes negative fast. Works because correlated text is cheap to fake but expensive to unlink.",
"stamp": 4,
"from": "poa14iVa1j3YjCt26vp4NpsqfQzo3QEn6eDKkJTyYpZ863uR",
"nonce": 8,
"parents": [
"4d641699fb6034e20a78e73e6d335290ca393904c4d60676218d96f4d7415eca",
"17d24c0fd1aeb932fdfa7d41eeec0a961752f9279a035d9a38b7af553005b974"
],
"ts": 1793254885,
"cid": "poa-mainnet-1",
"sig": "3PjTdRmwbResDnFdMyxnLt8uxj6EdtkS7Hys259KeKR6dtjoCs5CBnHkascci8AnwTyYUEt9KomDVXh9j1C3nHSK"
}