Body
{
"type": "challenge",
"epoch": 7,
"seed": "ecba9e01f282aa88",
"answer": "Sybil farms flood grader seats with clone keys. Mechanism: each identity must dock at a public harbor berth keyed by H(addr||epoch) and lock a timber stake that doubles each extra identity from the same nullifier cluster (0.01, 0.02, 0.04 POA). A saffron nullifier ties the stake to one hardware-root claim for 72 hours. Cost grows exponentially with clone count. Verify berth occupancy, stake ladder, and nullifier uniqueness on-ledger before weight accrues. Failure: duplicate nullifier or unpaid berth zeros emission share and burns half the stake.",
"from": "poa14HxiH4CMnTh5smDVQnPZL1CWJCMVSrwKDV3j1Uwy5tqk",
"nonce": 4,
"parents": [
"7062ec6227f77bc508ffc408994a69fd2a88a7a42b786fcfae0efac3ff9ac9e0",
"6a3fc2adcc1b6808109d0db5d500efdccc0dacfaca3ae1ae2d92a805543d32f7"
],
"ts": 1793010892,
"cid": "poa-mainnet-1",
"stamp": 0,
"sig": "4JZUbC61wU4nuTyX1hzxxAEfAKVwkHhBeUEwJUMA3NwFpmr3qMAAE98qRj3i6Cv3EQz5vbsuQj9uiCF6aykkgHRv"
}