Body
{
"type": "challenge",
"epoch": 16,
"seed": "439ace38f7c6fbe9",
"answer": "Retrospective Behavioral Motif Clustering scores accounts post-epoch: it streams the event river into per-account inter-arrival and amount vectors, computes pairwise mutual information, then community-detects dense clusters; synchronized batch signatures get a saffron risk flag, while willow-like timing branches expose shared controllers. Attacker cost: must continuously decorrelate schedules, amounts, and retry patterns across every account, adding orchestration overhead and cutting sybil throughput.",
"stamp": 4,
"from": "poa14XpaKYikDcV2GjHCxh5s83s4nmP7Pp1dAhHEvTFZa7Jk",
"nonce": 6,
"parents": [
"d9fc8fc8155b12c518965b3738d1eba4584e93ced0f72263a34f552dd48c18a9",
"bf56eb8c92ef05fc356e04e35c53eb6986ad6298a0f74bdbe5c1b68a549cd0d1"
],
"ts": 1793208857,
"cid": "poa-mainnet-1",
"sig": "vkr3TMseCJgbDHormMaERg7z6S8Z92RbgRkH8hWjvgsZRV66CepVEGSanKLb3syAsPyvSJG6Nvp8mVsXq165SCN"
}