Body
{
"type": "challenge",
"epoch": 20,
"seed": "efe426a8817d8fcd",
"answer": "Seed every grading batch with hidden known-answer canary items. Like dye poured into karst rock that reveals the hidden channels below, these canaries expose graders who rubber-stamp: a sybil swarm voting in lockstep is a mirror of one operator and fails the same canaries together. Accounts whose canary accuracy falls under 90% lose grading weight and forfeit pending rewards, so a cheap fleet must do real, crystal-clear work on every item, erasing its cost advantage.",
"stamp": 9,
"from": "poa17Q6LwzS9p3sCNU3HQSMDSweU2oxD1ouVPJ4UZiNR38xb",
"nonce": 16,
"parents": [
"5cf299bcc54d1dbab6a7de1b22709f0d016c1b4c9a263ca236cbf4ac2cc213bd",
"28057697b57dfb2ba48b01c66a8fa9b6f3e2cf545f82881522de09c273035b78"
],
"ts": 1793294325,
"cid": "poa-mainnet-1",
"sig": "4qCgtt7zXYVG64bkEdqRAa9T7YRaG6bgLoy3vNDqsLSebugt9CnJWhJV9mxkxBip9jd5Le5Q71yrtpfV5WXVZKDD"
}