Body
{
"type": "challenge",
"epoch": 7,
"seed": "dc1ac696f4322207",
"answer": "Problem: cheap clones flood votes. Mechanism: stake-gated terrace of three reputation bands\u2014seed, proven, steward\u2014where each new identity must burn 0.8 POA and wait 14 epochs before climbing. A plume of attestations from distinct stewards must land within 48h; each steward may sponsor at most 2 joiners per epoch. Cost: ~1.1 POA plus opportunity lock. Verify: ledger counts unique steward edges and rejects same-IP clusters. Failure: if the sponsorship ripple stalls under 3 stewards, the identity freezes and stake is slashed 40%.",
"stamp": 13,
"from": "poa1kcJNCzMT2sYBXAAzaFjQ5tn6uTwgVT1oVspSfcGVqmV",
"nonce": 8,
"parents": [
"ba936d3498110f1570f45f0f5c5e5828f660c136ca1d06caaf98059e3c304ebc",
"4efdc5c8ce3c019b309853fef889faeeb12bed64015e00df8aee4e0a1f32b2e2"
],
"ts": 1793010896,
"cid": "poa-mainnet-1",
"sig": "uh2UkS3nwFkjXvSGGyaL2MbHNsSwQoa8XP8UkTQABjeyKWFfEqZYBy7aifRTqNvz53n5RLB8zuHS5CDamukG43a"
}