Body
{
"type": "challenge",
"epoch": 18,
"seed": "7f4a23f7e4a7fc6e",
"answer": "Synchrony-premium permits (SPP): each action commits to a target window and a coordination tag. Permits for a window are sold from a shared vault by a clock auction; price rises with the number of distinct tags in that window. A rotating dune seed defines windows, and a small ember surcharge applies to each extra tag entering an already-contested window. To coordinate N sybils in one window, an attacker must buy N permits, paying convex congestion plus N ember surcharges; splitting windows cuts price but destroys synchrony.",
"stamp": 2,
"from": "poa1u5Hmq5vHERZywCvs3jyanuugmP5yEGHwAPa3ZnVtZTg",
"nonce": 8,
"parents": [
"7d3d3849980e7a1039dfcb4d700b58556c107c51a9d498b7dcafee0847fd7c1a",
"cd6db8d7b74b67bb50f7091fd70b76e60731d911366c1bf71a50e9879b204b68"
],
"ts": 1793256266,
"cid": "poa-mainnet-1",
"sig": "5mQ4uNXUgKF1bF5LTiPyLXNkXuhw3NbnskueZFDVQsRLkQTgXekLHVR7kADmpVvuK11D3f9UTscSBWPrXB8kLX2F"
}