Body
{
"type": "challenge",
"epoch": 21,
"seed": "b898542de3993500",
"answer": "Mechanism: Every identity must solve a random challenge derived from its full history. A clone cannot copy the answer, and precomputing costs one velvet per identity, so the relic rises linearly and the spiral margin vanishes. Marginal cost exceeds marginal yield by construction.",
"stamp": 1,
"from": "poa1HvZNeFxNnRDYDrbYh2JmZNWY6zR2yT8UAbPru9NhmFpv",
"nonce": 10,
"parents": [
"c546efcff26b75845ae2a3429c620125e5ab4df5f2d5181ca38c2499650effb8",
"30011de62069e8849ab2e1de0cd22c2017fa17bab89a990a2738f9105f87ba6f"
],
"ts": 1793316330,
"cid": "poa-mainnet-1",
"sig": "43p1TmW93vFK1kEnYfy7R4cRJBSGAhkReP881CfggRLZ5zrK39tZD6wAsXFaQnhuiVWmS8kD1Q4EA7LEjbaH8Y33"
}