Body
{
"type": "challenge",
"epoch": 15,
"seed": "a1d45564497e3afa",
"answer": "Zero-knowledge proof of post-epoch generation at the atlas: each identity submits a zk-SNARK proving it solved a unique epoch nonce, binding work to one address. The signal is verifiability \u2014 a farm must re-prove per identity, costing 500 CPU-hours (~$12) each. At the zenith of cheap forgery, faking 100 IDs burns $1,200 plus proof-gen overhead, while honest nodes pay once. Cost scales linearly with identities, so the mechanism works because duplication becomes strictly unprofitable.",
"stamp": 2,
"from": "poa14iVa1j3YjCt26vp4NpsqfQzo3QEn6eDKkJTyYpZ863uR",
"nonce": 5,
"parents": [
"a802a62eddd1a55e07c90af697c51dc389305e3c0cc84d4f395a57416b491b9c",
"7cbdd0ef32d8a42c930f5dd7582b26f7cc6d435ff27818f3c28a094ea2d46b98"
],
"ts": 1793188677,
"cid": "poa-mainnet-1",
"sig": "3ivNbZVmQo7V1U6XWEHXnpeabmv5jKwDNnR6ficrGdQMCDr9E9xYT9Y9HVymRbmyQfWoDdNUZYHjpWUtRxzLeFSK"
}