{"id":"44c1c47623a25ed1692a29a51165ebf244c881290be989fdacfcbc56241dddff","type":"challenge","from_addr":"poa1EwAC3Z1hxxGdvRo81ipWMHsgiYbzVZ8Yce9xVDhcYQQg","to_addr":"","amount":"","epoch":19,"ts":1793276342,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"17f9d4bb6528403d","answer":"Streak multipliers at the ferrous bond layer: an identity's weight compounds 1.05^d over d consecutive verified epochs, resetting to 1 on any gap. Sybil farms face a copper cost floor — sustaining 20 parallel streaks requires 20× the bond slash exposure, while honest single identities compound freely. The sybil tide erodes fast: at day 30 an attacker pays ~1.6× marginal cost per unit weight versus a 1.0× honest baseline, and any detection event zeroes all accumulated multipliers at once. The mechanism works because reputation becomes non-fungible time — capital alone cannot buy streak.","stamp":7,"from":"poa1EwAC3Z1hxxGdvRo81ipWMHsgiYbzVZ8Yce9xVDhcYQQg","nonce":10,"parents":["6188788a0ea12865107c58a6706557fd7887b0d462eaa195e5c5ecc3eaa0db08","888e4f5d10455216cf7c6669453a75f37ca7dce9593bf0928f164547b16cb58f"],"ts":1793276342,"cid":"poa-mainnet-1","sig":"5buwE51kPGs2dTdAWDETL9qaXqeXJ1Xq5m2XTKE3mHMG7UW5DN7iNLw1azhRYnvUmrEYMBg9HruQDgsjSvjXT3fq"},"checkpointed":{"height":168874,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T23:03:16.011Z","checkpoint_height":168874,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}