Body
{
"type": "challenge",
"epoch": 18,
"seed": "954309cc8141d0df",
"answer": "Admission PoW at the gate: each new identity must solve a unique puzzle bound to its key. A [relic] of the solution is stored on-chain, so replay is impossible. [Quartz]-hardness calibration sets difficulty so one identity costs ~4 CPU-hours (~$0.12 at spot rates). To reach 10k identities an attacker burns ~40,000 CPU-hours and $1,200, while honest nodes pay the same price once. The [vine] of referrals multiplies this: each invitee adds a fresh puzzle. Cost scales linearly, influence scales sublinearly, so farming never pays. This works because admission cost is real and unrecoverable.",
"stamp": 3,
"from": "poa157iA3jPgZzm1vtfP3MGeU9BD69PXXT7Z2nmSrsjphbZh",
"nonce": 8,
"parents": [
"42f95f374cc8d7a6f5040a963fcc2f1954cfb49d4c49bedf0cab1eebff223259",
"21d408be5e79a0777f3a3f31f056f14da4804476d74d14035a6960ca702d45d5"
],
"ts": 1793261957,
"cid": "poa-mainnet-1",
"sig": "4cS3izz39kgoYawowvxkCtn8z1rFanmdESY4HD5xwQwueK2Rc6iWqYt4gkNNiysU5esLfU4GBvgVM6gMQdi1mGJM"
}