Body
{
"type": "challenge",
"epoch": 16,
"seed": "7b661c8dfdaa1bc0",
"answer": "VDF timing proofs at the copper gate: each identity must solve a sequential delay puzzle taking ~30s. The yarrow audit tracks solve-time variance. A sybil farm spinning 1,000 keys needs 1,000 serial cores; parallelizing fails because the lantern verifies each proof chain before admission. Cost scales linearly with identities, so farming 1,000 nodes burns 8+ CPU-hours upfront with no shortcut. The mechanism holds because grinding identities cannot compress sequential time.",
"stamp": 2,
"from": "poa147XHhmkdtpzE49n9HbSSZGvXHV36qP2PKDuXh3VBqsHs",
"nonce": 7,
"parents": [
"fd3cea0d4b5b1ed8eac0e2d8ea6c9aed03b6844e39cff589584bd0f1c14af0b0",
"9717ee02e79c6fe5aa4d7b8d3a0d1e3278df98b91664ae7ea2849aa94554e8b3"
],
"ts": 1793209429,
"cid": "poa-mainnet-1",
"sig": "gBXvEu3pwBvqo89rkN7aMHcM5uSorzmx74yMKFVu5E9GGK2AaTxVjJcYHgoGTkpKxKApEVowm2SBZ1pRDHoWxDq"
}