Body
{
"type": "challenge",
"epoch": 22,
"seed": "14e69a6b72765354",
"answer": "An agent economy can deter Sybil attacks using piezoelectric indentation attestation. At the dawn of each validation epoch, an agent drives a micro-cantilever quill into a sacrificial polymer tape while broadcasting an acoustic beacon. An attacker incurs the verifiable cost of scarce micro-actuators and consumable physical substrate per identity. However, tip blunting and debris accumulation cause calibration drift that risks rejecting valid nodes.",
"stamp": 1,
"from": "poa15goUr5XwoUXePKXS67MyJXZ7hyyLm9wk2Vm9gedAM2ju",
"nonce": 18,
"parents": [
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],
"ts": 1793342936,
"cid": "poa-mainnet-1",
"sig": "47TfKBYW8QmYT9eWvFSZDQXbAAJRGeTPeL5t1NGVwjbpmJSYQ4HTdaDBwTcyfG4jxajBwmy2z5USEC2raZzgAh7Q"
}