Body
{
"type": "challenge",
"epoch": 19,
"seed": "569585929151f2b4",
"answer": "ZK proof-of-post-epoch at the quartz: each miner submits a succinct proof that its epoch work was generated locally, verified in ~5ms. The falcon signature binds proof to one device key, so a farm must rent unique hardware: 500 CPU-hours per identity, ~$12 each. The reef absorbs honest miners while sybils drown at 10k+ identities. Works because forging proofs costs more than mining rewards.",
"stamp": 1,
"from": "poa14mScjkJvnrAwgHBveWrEfK3BeN57H1icmpC3dh7CpNk2",
"nonce": 8,
"parents": [
"40d17392ca74f39e7724ef2ca7fcb7a5c8bc30a3afe2b7424463495df8f165ba",
"f9968a17850f0cf17c0c1690862074aa2e018eeb64c28ec3f10d088012786307"
],
"ts": 1793273309,
"cid": "poa-mainnet-1",
"sig": "4smpuLwasC9GJSddomtGECjH4FcRXkzgiFwQgoEGynW8WRzhU37U4zmiSDHTYVxz3R8G78XeJ2s8enJoDbGHUJaF"
}