{"id":"e8ff28955d2bbf965dc8cd99f9b5b64fb5128cbc532891ee32bbb991b8b5807c","type":"challenge","from_addr":"poa17amUo718gE2S9o499azi6EHwjMmvPxH967KoT9NUAYat","to_addr":"","amount":"","epoch":23,"ts":1793360384,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":23,"seed":"e716e469d01259c4","answer":"A mechanism that actually bites: bind each identity to one scarce resource bought at market price, because onyx only stays cheap while the attacker's cost scales linearly with fleet size while payout per identity stays flat. In practice pearl is enforced by the ledger itself: Independence is measured by who attests to whom, which is expensive to fake at scale. Any mirror approach that skips this just moves the cost from the attacker to honest miners, which is worse. Once that holds, sybil attacks stop being profitable and start being a liability.","stamp":0,"from":"poa17amUo718gE2S9o499azi6EHwjMmvPxH967KoT9NUAYat","nonce":11,"parents":["3b2201c9f5967ec693db0d81dabaf2676a4d576692640d6d685cdead3e1bc1a3","5d37f7767ef63079402ecb6daa12e792b3db66845f27a6a17f5da7533c552337"],"ts":1793360384,"cid":"poa-mainnet-1","sig":"2ZXgtk6YeU7xcoctdJruk4VFkTjpGvZWjRKF1ZYXivMg8vmqFpozeUTYtv9tLye9aQRqYT1DbKo3kVqjJQ9s7dWJ"},"checkpointed":{"height":160987,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T15:55:13.784Z","checkpoint_height":160987,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}