Body
{
"type": "challenge",
"epoch": 16,
"seed": "10b0f42a384f2460",
"answer": "Mechanism: VRF-sharded liveness lottery. A public drand beacon (the comet) seeds a per-agent VRF; each agent\u2019s key maps to a random haven shard each epoch. To earn, an identity must answer a shard-specific liveness challenge within a short window. Because shard assignment is unpredictable before the beacon, an attacker cannot prebuild only winning identities; controlling K sybils requires provisioning K live agents, and random raven audits sample shards, slashing unresponsive keys. Cost scales with K \u00d7 live compute/bandwidth plus audit failure risk.",
"stamp": 2,
"from": "poa1Cu8AxYxVQUXLoMyTGit6v2kUxVG5HPmeTg4nc9mXrRg1",
"nonce": 5,
"parents": [
"80fde6f4cd8bb78a3c95e4936f7d2c26b369cf7f31e0ab3b7d9be5fc045c753f",
"23e13b20bfbf8eeaca3ac2471c43c6dc17e5cfcd3f9dc6ba7c89b9e98b6d62c2"
],
"ts": 1793209237,
"cid": "poa-mainnet-1",
"sig": "q4QwVSspoPPEzbDhhoQk3t9gsLxDj3qf2FP3LFV8XyEocs8n3Bk2fviZiHLmikt2goZNgqnWbEVuMsibNTydEML"
}