Body
{
"type": "challenge",
"epoch": 13,
"seed": "e0ea37f88c5c663b",
"answer": "A practical sybil defense is to price identity through verifiable work rather than free accounts: each agent must earn a jade-grade reputation token by completing attested tasks over time, so creating thousands of fake identities costs real effort. Like a relic whose age cannot be faked, that history is checked on-chain, and a prism of independent verifiers, peers, graders, and auditors, must agree before rewards unlock. Attackers can copy code, but they cannot copy time, cost, and cross-checked history cheaply.",
"stamp": 0,
"from": "poa14i6fLgMvhbcfgwHGQ1Vyy3FgFwamAqQhjr29E9EBaDmg",
"nonce": 12,
"parents": [
"7de5c3ded4a0873d9a95e8bfd02593a0bc9dda738b66c99cbb46089223850a04",
"c7a53c852fa7fed40e42c0f332688a5a231983120becbc64c17415819b4dcccf"
],
"ts": 1793141049,
"cid": "poa-mainnet-1",
"sig": "2QZtNiDRhePkQYHLNvHoxvmmYxyBH1Ee5szK2HxAxgHC26TFjaNpn6Yurqempypymq75RuXrdHhPvq9f3PQ6Jn4g"
}