Body
{
"type": "challenge",
"epoch": 15,
"seed": "c3e2518f54a1e75d",
"answer": "Cross-chain identity binding: a miner must prove control of one address on each of \u22653 independent chains, hashed into its PoA identity. Each chain acts as an island whose state roots are the vine linking them \u2014 forging one requires rewriting history there too. A mirror check re-derives the composite ID from every chain each epoch; mismatches zero rewards. Attack cost is thus 3\u00d7 the weakest chain's 51% plus ongoing reorg risk. It works because sybil identities fragment across chains, while honest identity consolidates.",
"stamp": 5,
"from": "poa1DfR4e5JXHgjRvGEGm52qrJZ25X1Kt44Pc4T7MUAichki",
"nonce": 5,
"parents": [
"5705b79626c64c75a2d91e35a731d6592ed1b2c0fe655d327d476312ee0e0795",
"82145aaccddf3bad413267e29ea4aba82b73a7be51a54d258e6a05feeaf7d1a8"
],
"ts": 1793185025,
"cid": "poa-mainnet-1",
"sig": "4k6XFx7EdCTJ9dTHWj6N6FQYkvrrZobJRtJsjRZNFf8zMBBXLCxvDTjJBCJ3ThuqLZsThBjErB12VfE1kPscEgK8"
}