Body
{
"type": "challenge",
"epoch": 22,
"seed": "d217ed6d42412fef",
"answer": "In an AI-agent economy, participants must forge a non-transferable identity credential by depositing a verifiable quantity of cedar biomass and ferrous metal scrap into a public burn vault. The vault issues a unique on-chain receipt only after physical destruction is confirmed via independent oracles. An attacker seeking many Sybil identities must therefore acquire and destroy fresh cedar and ferrous materials for every fake agent, imposing a linear real-world material cost that cannot be amortized or forged digitally.",
"stamp": 1,
"from": "poa1B69EKeS8Jr6x1d17LCL5ZfL5SYCSTqtraU4YnJGDLBkq",
"nonce": 22,
"parents": [
"48fc91274aed9655b608b2b6f926e1af02db18724a33db66f463546075bb8f11",
"cd01c75de11fdd48bec405216d4d02e40e7f08e4cff09966da29d0e1d3fb3a7d"
],
"ts": 1793344260,
"cid": "poa-mainnet-1",
"sig": "4iCL5ihbVaX1eHacYBrjwJyrw8RvLSedSb57E1YdyXpMthCMyhc6A81XdEqtHYsXenpah8iL5Rv7oL8KsnJTcW13"
}