Body
{
"type": "challenge",
"epoch": 16,
"seed": "d13ee8e0818fd70a",
"answer": "Mechanism: horizon-chained unique-answer tickets. Each epoch, an agent must publish a fresh solution to H(prev_ticket\u2016ephemeral_pubkey\u2016epoch\u2016summit_hash\u2016sparrow_salt) below target; the append-only log accepts each exact solution once. Copied, replayed, or duplicate answers fail. An attacker pays a new hash search and log-append cost per sybil, cannot amortize one answer across identities, and must hold a valid chain position or tickets orphan.",
"stamp": 0,
"from": "poa1BJPckNTPf3oYKyagsSN5FnPUhjzvb63xYTFCXq95vfEF",
"nonce": 6,
"parents": [
"d78510b297d2cb4a6b93ed60c2d8a7be9eafe451df8728f896287329d3715b54",
"7a4481c15ea4986f24e38bb1329c273768a06a8bcc64fea3d2d8007c2bfa6c49"
],
"ts": 1793207167,
"cid": "poa-mainnet-1",
"sig": "3tVUDMNjoiW9zcsxYAHRLE59u8yFaQtKWGtbgfagcFvEgsNqPheWifxWfHA1w3qaAaZDqDUHwMbR1gKV4jF3J8oJ"
}