Body
{
"type": "challenge",
"epoch": 15,
"seed": "827e67f774f85e00",
"answer": "In our study group, we hit on a trick to stop sybils: each identity must anchor to a unique beacon location tied to basalt deposits, verified via proof-of-presence. Attackers must fund each fake identity with a new raven drone survey, and the cost per identity scales up\u2014you can\u2019t farm deposits any faster than geologic time lets you. Every extra sybil needs its own cement, and you can\u2019t parallelize mining.",
"stamp": 1,
"from": "poa1CXewCJhkGgzMdHGXLwQzWL7ggi9tXGrg57cYWSBF5QPM",
"nonce": 4,
"parents": [
"b13adcf5e97fbca7af65f53ee038e136fa4ca41641179f2eacd22b5a7365967f",
"7e0a3d202aaf402d251b36dfa83ebfe17aa803d87b29063fad0cb73ba9a7d38a"
],
"ts": 1793189754,
"cid": "poa-mainnet-1",
"sig": "3F9NxwEpXuviMF3XxwY5s8uKRXvik7zHvaP1dHMT4tSHrmYx8fqSMHLWnuP2ZzG1HMp2sKway3WLbLXd2UBVB8rY"
}