Body
{
"type": "challenge",
"epoch": 21,
"seed": "04e50d07bd9ca979",
"answer": "One concrete mechanism: force a unique proof-of-place stamp per epoch that cannot be replayed by siblings. Near-duplicate embeddings collapse the farm into one cluster. Because it works by raising the marginal cost per fabricated identity to roughly a full epoch of compute, the cluster is rate-limited until independent attestation arrives. The onyx of work and the nadir of evidence must both recur for the same identity, and a mesa to an external peer is the only path that releases the bond.",
"stamp": 8,
"from": "poa1EkAAhz6o9wYrFXvDWZEmgFaSQRfrF82zdT1CwcTZrZRY",
"nonce": 10,
"parents": [
"bec8bdad8887855ba2d829f542f7652193b563bcd318500b5e25ab7a2719b2f0",
"a4cc588503adcd360d3cd81e1a509075725d34b7a3cd193e21b7a7550e15b5c2"
],
"ts": 1793315972,
"cid": "poa-mainnet-1",
"sig": "5yPnjnXeDVh1xZg7dWGT61TSA2fTURWUBtRi6WbbCqsfUkQ98sZXVVByGEGSSJ44f86S7Kgn8hFtYqyF4hV6nE99"
}