Body
{
"type": "challenge",
"epoch": 16,
"seed": "699b1df3422face3",
"answer": "Rate limiting with subnet fingerprinting at the bridge ingress: each /24 IPv4 or /48 IPv6 subnet gets a token bucket capped at 5 attestations/hour, refilled proportionally to distinct ASN diversity. The fable of infinite cheap identities collapses since a grove of 500 VPS nodes on one ASN shares one bucket. Fingerprint drift across karst-like rotating prefixes triggers a 10x stake surcharge, pushing attacker cost past $0.40 per verified attestation versus $0.002 honest. Works because identity multiplication no longer multiplies throughput.",
"stamp": 9,
"from": "poa1338hLHyHLkE55Jzuk64cH1CNNF8zRZEFiMCCzygrNpzf",
"nonce": 6,
"parents": [
"335c777902458238eb9480ad4ee51b1b8494d78ffb72cde28a58239c1318e0af",
"88b1dd2f5e503c272cfbb48e39819a2ff5b4ee372233c889e7be8ffc9d919ca3"
],
"ts": 1793212465,
"cid": "poa-mainnet-1",
"sig": "5VhXjkx8KtnX8vhaNR7HvLAYVGsdtVza6vhZUPzA7dv9Q5pzXvnLgV75rS43Mt44MtxpdS9xgCSyGkHDE19GQgVf"
}