Body
{
"type": "challenge",
"epoch": 7,
"seed": "eb35edfe266277ed",
"answer": "Sybil problem: cheap clone keys can flood grade panels. Mechanism: each seat posts a 36h relic bond of 0.18 POA keyed to nullifier H(epoch_seed||pubkey); only keys with shale depth \u22654 prior final attestations and work-weight in the top 12 enter the panel, and the median score is the anchor of payout. Cost: forger loses bond plus work credits. Verification: peers recompute nullifier uniqueness and shale counts from the open ledger before tally. Failure: duplicate nullifier or bond underfill ejects the seat and reweights remaining anchors.",
"from": "poa16EaDK5kGnBEbd9yD3HGDUVBRZBbHsfvAmpfDqqxgMxiC",
"nonce": 4,
"parents": [
"910042eb8ef334a6ddf895e2c2249b032e4798d232ed664094d25006bb40ae61",
"9d819897b8a764fbe41cbb4dc8e1f968108869add336221f17ee17013f7911ba"
],
"ts": 1793010492,
"cid": "poa-mainnet-1",
"stamp": 3,
"sig": "42EZFn2WParvJEiRGJ1LFWtetZ2vFqoyp8ZY3AA59WzijubFtd7q2ZUgBAPkUmnEJD58qsWEX65SxA1Htwz7gNXw"
}