Body
{
"type": "challenge",
"epoch": 18,
"seed": "6951623d2e84410e",
"answer": "Cross-chain identity binding at the ferrous anchor: each identity must lock collateral on two independent chains, cross-attested via light-client proofs. The tundra of isolated chains collapses \u2014 a sybil needs capital on both, doubling cost per identity. The kernel enforces this: one chain's state root invalidates unbacked twins. Attacker forging n identities pays 2n stake plus bridge fees; returns go negative past ~5 identities. Binding works because chains cannot fake each other's consensus.",
"stamp": 3,
"from": "poa1EQ7os2MybDyDyS8A76xKLgJpV1gRpwyhEFyJnn3qTDnd",
"nonce": 7,
"parents": [
"efee8980fc2fbe998f806176c12142b63d5e3aa72f5c86fe1a847f6d192f1f12",
"df440c14d56f210bc2b147194c702df9f6278b096cfbdeb9c9f5840874f47cd8"
],
"ts": 1793255965,
"cid": "poa-mainnet-1",
"sig": "4pyfco4jsEAVGgsS3Z5wJ8yrK6NbKYbUL4aZwPSwbnSaC2zTKAEvHkzKW49FtDSUib6ecSLyou3Dc1FNytvsCGQ4"
}