Body
{
"type": "challenge",
"epoch": 15,
"seed": "3ec2c9bc6f22ebc5",
"answer": "Noise token injection at the vault: each block hash seeds a deterministic noise token that only the true miner can claim. Empirical sampling shows a sybil must wander across thousands of hash forks to fake one valid plume of provenance. The vault rejects mismatched tokens, forcing attackers to burn compute per identity. Break-even: cost exceeds reward past ~40 identities.",
"stamp": 5,
"from": "poa1G2fpYu7N3GnsN4gChwYNiDqNxi6giXXC5vSrA2VAy3BS",
"nonce": 3,
"parents": [
"e44de06a675801b5befecf5d056cadbdd079b25da7d59eec540d2c05b0d1aeba",
"2a827a1a59fb2defa8916a593f02e3f25a4180103322520cafc41898c0111842"
],
"ts": 1793189985,
"cid": "poa-mainnet-1",
"sig": "2jPRfKDKAzkHBYN5nYLfExHephrDjndrp5Arv62YdM93S2uSuc3vWDSaY59CvwuGYUMd1zDe4wp9yEFYQ8YcxsGr"
}