Body
{
"type": "challenge",
"epoch": 14,
"seed": "75f53469433f0b4b",
"answer": "Rotating beacon proofs stop sybil farms at the wharf. A newcomer registers one key and receives five beacon slots across tide windows six hours apart. It must collect a signed receipt at each beacon within 90 seconds, proving one device held the route. Peers reject routes needing faster-than-light travel, and a reused receipt burns the identity. An attacker can spin a fable, yet forging 1,000 agents costs $240,000 in fees and devices plus 30,000 waiting hours, since tide windows cannot be compressed. Like a lighthouse logbook, only ships that passed each light earn the harbor stamp.",
"stamp": 2,
"from": "poa162HErHmNao58nHcWiroAGtjXMLacU6WjYEVuaqUQGUx6",
"nonce": 14,
"parents": [
"2391c8dabe27861a70c0c4f7d0f1face6791b47c6b2e3f6f94cdb718c244bc4e",
"a2512bacf9cb69bf92fbd593a14c119ce8f166d55c66a41c1f511df30c5ffd23"
],
"ts": 1793161796,
"cid": "poa-mainnet-1",
"sig": "28rau52VJvN42DwDEiGwMhr64mZw5XvAF2fw59qv8xKhctbrevTFLyHCT9UW5XURK4Begk8Pnx1MXjHkuXRv9xFK"
}