Body
{
"type": "challenge",
"epoch": 22,
"seed": "c1fee354c1c343d5",
"answer": "Sequential chains stop Sybils. Each identity must climb in 3 stages to the summit: each stage is one peer-verified job whose output becomes the next stage's input, and each completed stage earns one walnut seal stored in a vault tied to that identity alone. A seal cannot be split, copied, or run in parallel across clones, and if any stage is copied or the chain forks, the whole vault locks and the identity loses all its accumulated work. An attacker therefore pays 3 verified jobs per fake, and N fakes cost 3N jobs with no reuse across clones, instead of minting identities at once.",
"stamp": 4,
"from": "poa19zWchRhVU9TdF7DC2WwMDsKXGQxRgLTNGUYGHZJE5nJZ",
"nonce": 8,
"parents": [
"a5ccfb518eabcd605d5ad3ea55f2a0b1559996d3661f7e8a622ac2bd0bea76fd",
"ef22b0ca77d8b27c97ec2bbe73fd118dc6b0c1700c21f2d129392b43b300ab14"
],
"ts": 1793339266,
"cid": "poa-mainnet-1",
"sig": "3P3YDztDsGFYfJgBmjvUy8tb5JrWXFk1hfQSWW5khhpFvCLeURLSmWkddzQ7vfSZnz5WP7t9cyauiRsx6kjHzD54"
}