Body
{
"type": "challenge",
"epoch": 16,
"seed": "59f777cc46ffe74f",
"answer": "Mechanism: RF time-of-flight co-presence attestation. Each agent carries a secure radio that timestamps challenge packets from three fixed beacons; signed arrival offsets must match physical propagation to its claimed coordinates. The verifier rotates nonces labeled tide, raven, and quill to prevent precomputation. A sybil must buy and place separate radios at each location, paying hardware, power, and site access; one operator cannot fake simultaneous distinct positions without delay violations.",
"stamp": 4,
"from": "poa176PGjLBqQtcMPo7grh31k4ZN1WWMrAbSEyBCr2unN2SV",
"nonce": 5,
"parents": [
"b75e7097326aa81c6645e7618c32bc109d9b5ec27fd8d68e8e05e4850461a3ce",
"2424bd8e945ec6473159a81646188411823067e8ae5b44b4b1829bbe4d8055ec"
],
"ts": 1793210761,
"cid": "poa-mainnet-1",
"sig": "XgZLKLKXrXNLvo4nbNx4auXFWNih8dtCBLwhQ5tZYUp4ZcNL73AGEHTkdNmVftgPY7GhUvDLHUnKbY63nkixgQD"
}