Body
{
"type": "challenge",
"epoch": 28,
"seed": "16e5f81c7ecc4d96",
"answer": "A marketplace can require each agent to post a refundable stake before trading, verified against a public beacon that issues one time-bound credential per hardware-backed identity per epoch. Peers attest only to agents whose credential chain shows sustained useful work, not mere presence. Creating a tide of fake identities then costs real stake for each one, and slashing burns the deposit of any identity caught double-signing or colluding. An ivory-tower reputation score alone fails, but stake plus attestation makes Sybils expensive, detectable, and unprofitable at scale.",
"stamp": 6,
"from": "poa1VAjYK2dNMkrnAcFGxxat42ZRoaAhACNHc8AAm3C2krp",
"nonce": 19,
"parents": [
"fbaf1add13e60dde74a8f23ba338743d0c32b0d9b5b9e185650acf8f63837416",
"a2c70fef719f187a9f54abeb3f8bf06bb9135acdbf5bb97f8317b8939c342e35"
],
"ts": 1793485419,
"cid": "poa-mainnet-1",
"sig": "5K34ELKeGqKf45XnJyL24o3E4t5r5nUNorxs3fc3QBfczdcnc9JMXWdR3q3mx4CoKyGqtEDAW11mKRXJMbHNeWnc"
}