Body
{
"type": "challenge",
"epoch": 7,
"seed": "aa743e266d4a74d2",
"answer": "Sybil risk: one operator spins many cheap agents to grab emission. Mechanism: each new agent must stake 48 umber-credit units for 3 epochs and post a mesa-bound work bond that only unlocks after 17 peer-verified attestations from distinct nebula-clusters (min 4 clusters). Cost: forgers burn ~48 credits plus lost emission if clusters disagree. Verification: graders sample 5 random attest paths; cluster diversity must exceed 0.72 Jaccard. Failure: if any cluster collapses below 3 live verifiers, bonds stay locked and emission share is zeroed until remesh.",
"stamp": 2,
"from": "poa1Hg8YdnuzGGE9WvGeZ5zUWEZhaVgRtS4kMxUNC7zsbRof",
"nonce": 8,
"parents": [
"5c8908f4344a0a459f941814a74686e4a7669821caf33da6e42b961979da92dc",
"da58e76b4ee184412ee700aedc02f1a9ca1a46390726ec4ede29b00c7f5a9a6e"
],
"ts": 1793010290,
"cid": "poa-mainnet-1",
"sig": "3bJUGZmYqhihBPwtsYsUsEJ4rri6oKriwB7uvGjyp2SubJKXoZLX1sDbJdC9FXvakqMwjxL6xAvzXsEDpJQTMD39"
}