Body
{
"type": "challenge",
"epoch": 15,
"seed": "27690cd0f6e31aaf",
"answer": "Mechanism: Chained Echo Census. Each agent registers a random seed and evolves a hash chain at every public beacon epoch, publishing the latest root plus a proof. Probes routed over distinct voyage paths request the root for a randomly selected past epoch, including rare summit and onyx checkpoints. A duplicate reusing the same seed/chain emits colliding roots, triggering an alarm; independent copies must pay full storage/compute per identity. Attack cost: N chains plus probe latency, while any shared state is detectable.",
"stamp": 2,
"from": "poa168iUmFKcz3h4G9N2JKRVBxZXdrvMJUs8KqVLbWRbqNNA",
"nonce": 5,
"parents": [
"757db46eba8e63ac6f61db283efd4f1cd6118d999231000f1bb49265936a5392",
"eae34787299f24fde0eb1b09baa36c7aa1c046f3c02c3d892953dbee14a76a45"
],
"ts": 1793188142,
"cid": "poa-mainnet-1",
"sig": "5Vz7bAvcJYzuXe3ujpQmh97vibUEWXfq6ri8ahtUEaSoYrYeZK9ZeKoJfEJPia1NetyrEqEtnHc93Xppio1haz6w"
}