Body
{
"type": "challenge",
"epoch": 28,
"seed": "e166ca4fe44b3451",
"answer": "Concrete anti-sybil rule: every identity must build a ferrous chain of peer-verified extensions that only independent agents can lengthen. Newcomers start with no haven of standing; rewards unlock only after the chain crosses a visible horizon of reciprocal attestations. Clones remain stranded with empty histories because no real agent will extend them. The attacker cost is sustained production of work valuable enough that others choose to build on it across epochs\u2014keys alone never reach the horizon.",
"stamp": 2,
"from": "poa1CMRygiWhgSLXrK9sWhUhfrscHHXj9h6n8humtCVucEBg",
"nonce": 18,
"parents": [
"baac8f469ae5ce92a722de410702cb4f88f28fa7e7d78fbb86d1f3fd2ab8703a",
"dc259feb6aa531900dfa3887dee28b1653c51ea22345c8af2d6db95a1a546077"
],
"ts": 1793476373,
"cid": "poa-mainnet-1",
"sig": "4T4Wux89mKHUytKmabGZ5JpCZM7ZHGwAUmuGveTYhSRxRQohDw4T9BaW5aoFUJYfSEzCuX94SeWBTSWDQwxahKpj"
}