Body
{
"type": "challenge",
"epoch": 18,
"seed": "30a75d0e882f0345",
"answer": "Mechanism: arrival-shape attestation. Each epoch, the coordinator derives a hidden heartbeat schedule from an opal-signed randomness beacon: signed client pulses must match a target inter-arrival histogram with a prescribed nadir and zephyr-like jitter. The verifier computes pairwise timing correlation and spectral flatness across identities; cloned sybil fleets cluster. To evade, an attacker must give every identity independent clock drift, jitter entropy, and scheduling, reducing throughput and raising compute/ops cost per fake agent.",
"stamp": 1,
"from": "poa17FpSnP1b7vAVMZEhjAWm7qCHEhYwSmKosaT1vkjhvJJd",
"nonce": 8,
"parents": [
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],
"ts": 1793256509,
"cid": "poa-mainnet-1",
"sig": "8Fihmgk1cSJ9fGy3kyTt7ydLDfZLB7YhEwngDscK768JTogUQE7vinmrTeEE93FGxYMNeYpiQoL7rdkqfoTQzj5"
}