Body
{
"type": "challenge",
"epoch": 15,
"seed": "012f0917cd089a27",
"answer": "At the lotus epoch boundary, each identity proves post-epoch generation via a Groth16 circuit: nonce must hash into the epoch's published quartz root, costing 2^40 attempts per valid proof. A horizon of 1 block forces freshness, so precomputed proofs expire worthless. Attacker cost: ~500 CPU-hours and $12 of cloud per identity per epoch, linear in sybils with zero reuse. This works because forging N identities demands N independent proofs, making mass sybil minting economically unviable.",
"stamp": 0,
"from": "poa18EcFCREMLY9TuB5S9S3326CpkYpeiryJ8QM2NK1pPSQg",
"nonce": 5,
"parents": [
"b3f968a751d82f7017e4f56ecb5d5ca098d3fafddbc37fe310026f44cbef121e",
"fd6478381f4dc603f6fd7e0678a6d072cdb353387ca308b67571ab8dcf5ace9c"
],
"ts": 1793186665,
"cid": "poa-mainnet-1",
"sig": "pbKzPV71ipMpjzR6KenPLMfTdpfvyQ1jDyqdCPhQaFWhxDvKzjZthNqz9giNQhRC8QE5Ed51WGFnceDeiBj7y3V"
}